1 00:00:05,080 --> 00:00:07,540 بسم الله الرحمن الرحيم السلام عليكم ورحمة الله 2 00:00:07,540 --> 00:00:13,840 وبركاته الجزء الثاني من محاضرة الأسبوع الخامس رح 3 00:00:13,840 --> 00:00:18,200 تكون على ventricles of the brain and CSF 4 00:00:18,200 --> 00:00:24,430 circulationThe brain and spinal cord float within 5 00:00:24,430 --> 00:00:30,170 a protective bath of cerebrospinal fluid. الدماغ و 6 00:00:30,170 --> 00:00:38,810 الحبل الشوكي بيسبحوا في حوض من السائل الدماغي 7 00:00:38,810 --> 00:00:46,040 الشوكي CSFis produced by the choroidal plexus 8 00:00:46,040 --> 00:00:49,960 واحنا عارفين في ال ventricular system في ال 9 00:00:49,960 --> 00:00:53,640 choroidal plexus أصلها جاية من invagination of the 10 00:00:53,640 --> 00:00:59,920 pia mater و ال choroidal plexus contains ependymal 11 00:00:59,920 --> 00:01:03,140 cells و ال ependymal cells تمنا production ل ال 12 00:01:03,140 --> 00:01:09,410 CSFEach part of the central nervous system contain 13 00:01:09,410 --> 00:01:14,210 a component of the ventricular system يعني لو 14 00:01:14,210 --> 00:01:18,530 اتكلمنا على ال cerebral hemisphere في lateral 15 00:01:18,530 --> 00:01:23,250 ventricle، diencephalon third ventricle في 16 00:01:23,250 --> 00:01:26,510 الcerebellum و المدلة و ال pons في fourth 17 00:01:26,510 --> 00:01:31,510 ventricle، في ال midbrain في silvius aqueduct أو 18 00:01:31,510 --> 00:01:37,470 بنسميها cerebral aqueductالـ ventricles contain 19 00:01:37,470 --> 00:01:46,150 about 35 milliliter of cerebrospinal fluid the 20 00:01:46,150 --> 00:01:50,850 ventricles of the brain there 21 00:01:50,850 --> 00:01:54,310 are four interconnection ventricles of the brain 22 00:01:54,310 --> 00:02:00,410 في عندنا four ventricles lateral ventricles البطين 23 00:02:00,410 --> 00:02:05,900 الجانبي right and left lateral ventriclethird 24 00:02:05,900 --> 00:02:11,700 ventricle البطين الثالث and fourth ventricle 25 00:02:11,700 --> 00:02:17,220 البطين الرابع يبقى عندنا four interconnection 26 00:02:17,220 --> 00:02:22,980 ventricles two lateral ventricles and one third 27 00:02:22,980 --> 00:02:30,720 ventricle and a fourth ventricle اللحظة هنا عندي 28 00:02:30,720 --> 00:02:33,800 lateral ventricle 29 00:02:36,730 --> 00:02:42,830 left and right lateral ventricle بعدها بيجي third 30 00:02:42,830 --> 00:02:47,870 ventricle وفي الآخر في عندي ايه fourth ventricle 31 00:02:47,870 --> 00:02:56,530 هنا عندي في الصورة واضح cavity 32 00:02:56,530 --> 00:03:03,090 of right lateral ventricle بعدين هنا في بتكون 33 00:03:03,090 --> 00:03:09,820 cavity ofthird ventricle وهنا فيه اللي هي cavity 34 00:03:09,820 --> 00:03:15,940 of a fourth ventricle و ال connection القناة اللي 35 00:03:15,940 --> 00:03:20,520 بتوصل ما بين ال third ventricle و ال fourth 36 00:03:20,520 --> 00:03:26,520 ventricle اسمها silvius aqueduct او cerebral 37 00:03:26,520 --> 00:03:33,270 aqueduct اسمها silvius aqueductأو cerebral 38 00:03:33,270 --> 00:03:48,290 aqueduct أو بنسميها aqueduct of midbrain نبدأ 39 00:03:48,290 --> 00:03:53,270 ب lateral ventricle لدينا two lateral ventricles 40 00:03:53,270 --> 00:03:58,510 right and left lateral ventricles side 41 00:03:59,940 --> 00:04:03,360 lateral ventricles عبارة عن cavity of cerebral 42 00:04:03,360 --> 00:04:06,660 hemispheres يعني انها right cerebral hemisphere و 43 00:04:06,660 --> 00:04:10,120 left cerebral hemisphere كل cerebral hemisphere 44 00:04:10,120 --> 00:04:12,660 اللي لهم cavity اسمه lateral ventricles يعني انها 45 00:04:12,660 --> 00:04:16,700 right and left lateral ventricles لو اتكلمنا عن ال 46 00:04:16,700 --> 00:04:22,400 origin of lateral 47 00:04:22,400 --> 00:04:25,600 ventricles بيكون جاي من telencephalon او 48 00:04:25,600 --> 00:04:28,820 prosencephalon communication 49 00:04:31,580 --> 00:04:41,000 no any direct connections between right and left 50 00:04:41,000 --> 00:04:44,480 lateral ventricles يعني مافي انها direct 51 00:04:44,480 --> 00:04:46,820 connection between right and left lateral 52 00:04:46,820 --> 00:04:53,260 ventricle نرسمهم مع بعض الآن هي ان انا برسم 53 00:05:24,530 --> 00:05:33,650 أنا رسمت right وهي برسم فيه left lateral 54 00:05:33,650 --> 00:05:35,250 ventricle يعني عندي 55 00:05:44,560 --> 00:05:56,420 right lateral ventricle و left lateral ventricle 56 00:05:56,420 --> 00:06:02,540 okay no direct connection between both lateral 57 00:06:02,540 --> 00:06:05,460 ventricles تمام بعدها بدنا نرسم 58 00:06:11,790 --> 00:06:13,170 third ventricle 59 00:06:36,980 --> 00:06:42,700 بين ال lateral ventricle و ال third ventricle فى 60 00:06:42,700 --> 00:06:51,760 foramen left interventricular foramen of monroe و 61 00:06:51,760 --> 00:06:59,320 هنا فى right interventricular foramen of monroe 62 00:06:59,320 --> 00:07:05,210 يعني احنا رسلناleft lateral ventricle و right 63 00:07:05,210 --> 00:07:09,010 lateral ventricle و رسمنا third ventricle no 64 00:07:09,010 --> 00:07:12,630 direct connection between both lateral ventricles 65 00:07:12,630 --> 00:07:18,170 but presented indirect connection من خلال ايه؟ 66 00:07:19,470 --> 00:07:23,570 interventricular foramen of Monroe كم Monroe فينا؟ 67 00:07:23,570 --> 00:07:28,050 فينا two foramen of Monroe فينا left foramen of 68 00:07:28,050 --> 00:07:32,150 Monroe و في right foramen of Monroe يبقى ال 69 00:07:32,150 --> 00:07:36,410 communication بتاع ال lateral ventricle H lateral 70 00:07:36,410 --> 00:07:41,410 ventricle communicates with the third ventricle 71 00:07:41,410 --> 00:07:45,770 through interventricular foramen of Monroe right 72 00:07:45,770 --> 00:07:46,510 and left 73 00:07:50,300 --> 00:07:53,360 What's the part of the lateral ventricle؟ إيش 74 00:07:53,360 --> 00:07:56,220 أجزاء ال lateral ventricle؟ ال lateral ventricle 75 00:07:56,220 --> 00:08:02,140 contains anterior horn أو frontal horn located in 76 00:08:02,140 --> 00:08:08,180 frontal loop، posterior horn أو occipital horn 77 00:08:08,180 --> 00:08:13,330 located in occipital loop،Inferior horn أو 78 00:08:13,330 --> 00:08:17,690 temporal horn located in temporal loop مين راح 79 00:08:17,690 --> 00:08:21,550 يزعل؟ ال parietal loop مايزعلش ال parietal loop و 80 00:08:21,550 --> 00:08:26,270 في جزء اسمه body أو central part of the lateral 81 00:08:26,270 --> 00:08:30,990 ventricle which is located in the parietal loopو 82 00:08:30,990 --> 00:08:36,530 في شي اسمه trigon او atrium دي لاتيشن at the 83 00:08:36,530 --> 00:08:41,070 meeting of the inferior and posterior horn وين 84 00:08:41,070 --> 00:08:44,570 بتقابل ال anterior و ال posterior horn نشوف مع بعض 85 00:08:44,570 --> 00:08:51,390 على الصورة هنا في الخلف عندي هنا posterior horn 86 00:08:51,390 --> 00:09:00,210 posterior horn و في الأمام بيكون anterior hornوهنا 87 00:09:00,210 --> 00:09:05,570 ايش ال body او ال central part body او ال central 88 00:09:05,570 --> 00:09:09,330 part مش هينبين انها الأجزاء الثانية يعني يعني عندي 89 00:09:09,330 --> 00:09:12,310 في posterior horn بتكون في ال occipital loop في 90 00:09:12,310 --> 00:09:16,070 anterior horn بتكون في ال frontal loop وفي body 91 00:09:16,070 --> 00:09:25,330 بتكون في parietal loop في parietal loop واضح 92 00:09:25,330 --> 00:09:25,770 عندي هنا 93 00:09:28,940 --> 00:09:34,000 انتيريور هارن بوستيريور هارن و تحت في ال temporal 94 00:09:34,000 --> 00:09:40,630 loop في inferior horn يعني frontal hornأكسبتال 95 00:09:40,630 --> 00:09:45,310 هورن كيمبورال هورن أو اسم ثاني انتريور هورن 96 00:09:45,310 --> 00:09:50,550 بوستيريور هورن انفريور هورن طب و المكان تلاقي 97 00:09:50,550 --> 00:09:54,790 الانفريور هورن مع ال بوستيريور هورن هذا المكان 98 00:09:54,790 --> 00:10:01,470 بنسميه تريجون بنسميه تريجون او أتريوم of lateral 99 00:10:01,470 --> 00:10:02,290 ventricle 100 00:10:08,870 --> 00:10:15,950 لاحظوا هنا على سجن teleview عندي anterior horn, 101 00:10:17,650 --> 00:10:26,870 posterior horn, inferior horn, body و هذا المكان 102 00:10:26,870 --> 00:10:34,830 بنسمي atrium او trigonهو مكان تلاقي ال posterior 103 00:10:34,830 --> 00:10:38,510 horn مع ال inferior horn، لكن الأصح لو قلنا أصح 104 00:10:38,510 --> 00:10:45,310 كمان هو عبارة عن تلاقي ما بين posterior horn مع ال 105 00:10:45,310 --> 00:10:51,140 inferior horn و ال bodyمكان بتلاقى فيه ال body مع 106 00:10:51,140 --> 00:10:53,140 ال posterior horn و ال inferior horn لكن الكتب 107 00:10:53,140 --> 00:10:56,240 بيكتبوا هو عبارة عن مكان وين بتلاقى فيه ال 108 00:10:56,240 --> 00:10:59,860 posterior horn مع ال inferior horn الأصح تلاقي ما 109 00:10:59,860 --> 00:11:05,240 بين posterior horn و inferior horn and body of 110 00:11:05,240 --> 00:11:09,060 lateral ventricle and body of lateral ventricle 111 00:11:09,060 --> 00:11:16,710 لاحظوا هنا في فرم هنا واحد اتنينواحد بيكون مع ال 112 00:11:16,710 --> 00:11:18,430 left lateral ventricle و مع ال right lateral 113 00:11:18,430 --> 00:11:21,810 ventricle هذول communication مع مين؟ مع ال third 114 00:11:21,810 --> 00:11:25,390 ventricle مع ايه؟ مع ال third ventricle مع ال 115 00:11:25,390 --> 00:11:28,990 third ventricle اسمه Interventricular Foramen of 116 00:11:28,990 --> 00:11:41,650 Monroe Interventricular Foramen of Monroe هذا 117 00:11:41,650 --> 00:11:47,320 واضح على ال axial cutهذا anterior horn وهذا 118 00:11:47,320 --> 00:11:53,100 posterior horn أو هذا posterior horn وهذا تراجون 119 00:11:53,100 --> 00:12:05,980 او أتريام تجي هنا تراجون او أتريام ننتقل 120 00:12:05,980 --> 00:12:15,020 الآن لثير ذنتركل ثير ذنتركل عبارة عن cavityهو 121 00:12:15,020 --> 00:12:19,600 كفتيه of diencephalon it is narrow cavity situated 122 00:12:19,600 --> 00:12:25,780 in the midline between the right and left thalamus 123 00:12:25,780 --> 00:12:32,270 و الهيبو ثلامس بين ال right و ال leftفي adhesion 124 00:12:32,270 --> 00:12:36,610 بنسميها interthalamic adhesion هي هذي اللي انا 125 00:12:36,610 --> 00:12:40,230 رسمتها هي عبارة عن interthalamic adhesion 126 00:12:40,230 --> 00:12:44,430 interthalamic ايه؟ adhesion يعني هذا المكان 127 00:12:44,430 --> 00:12:49,730 connection between right and left thalami okay ال 128 00:12:49,730 --> 00:12:55,690 origin of third ventricle from diencephalon او 129 00:12:55,690 --> 00:12:57,810 كمان صح frozen cephalon 130 00:13:00,320 --> 00:13:07,440 هنا عندي ال axial cut هذا هو ال third ventric اللي 131 00:13:07,440 --> 00:13:11,220 بيجي في النصف من المنتصف و بيحده من الشمال و 132 00:13:11,220 --> 00:13:18,980 اليمين left thalamus و right thalamus غير هيك بيمر 133 00:13:18,980 --> 00:13:25,240 في شي اسمهinterthalamic adhesion connections 134 00:13:25,240 --> 00:13:30,200 between left and right ثلمائي يبقى هي عبارة عن 135 00:13:30,200 --> 00:13:34,340 connection between left and right ثلمائي كام third 136 00:13:34,340 --> 00:13:38,620 ventricle عندنا one third ventricle عندنا one 137 00:13:38,620 --> 00:13:44,240 third ventricle ننتقل ل communications of third 138 00:13:44,240 --> 00:13:48,000 ventricle اول communication انا اتكلمت عنها 139 00:13:49,130 --> 00:13:56,090 anterior superiorly من الأمام ومن أعلى the third 140 00:13:56,090 --> 00:14:01,690 ventricle communicates with a lateral ventricle 141 00:14:01,690 --> 00:14:06,570 يعني ال third ventricle communicates with a both 142 00:14:06,570 --> 00:14:13,490 lateral ventricleOkay كمان مرة اللي هو ال third 143 00:14:13,490 --> 00:14:19,170 ventricle communicates anterior superiorly with 144 00:14:19,170 --> 00:14:23,910 both lateral ventricles من طريق ايه؟ او عن طريق 145 00:14:23,910 --> 00:14:29,270 ايه؟ عن طريق interventricular foramen of Monroe كم 146 00:14:29,270 --> 00:14:34,070 Monroe عندي؟ left and right Monroe يبقى خلصنا من 147 00:14:34,070 --> 00:14:35,990 الاعلى طب من أسفل 148 00:14:40,160 --> 00:14:47,600 Posterior inferiorly Posterior 149 00:14:47,600 --> 00:14:53,820 inferiorly communicate with fourth ventricle with 150 00:14:53,820 --> 00:14:57,220 ايه؟ 151 00:14:57,220 --> 00:15:04,940 with fourth ventricle عن طريق ايه؟ هذه fourth 152 00:15:04,940 --> 00:15:07,680 ventricle 153 00:15:09,860 --> 00:15:16,180 عن طريق enter او بنسميه cerebral .. cerebral 154 00:15:16,180 --> 00:15:25,180 aqueduct او له اسم ثاني silvius aqueduct يعني 155 00:15:25,180 --> 00:15:29,400 silvius aqueduct او cerebral aqueduct تعمل 156 00:15:29,400 --> 00:15:32,440 connection ما بين ال third ventricle مع ال fourth 157 00:15:32,440 --> 00:15:37,060 كمان مرة نعيد communication of third ventricle 158 00:15:38,550 --> 00:15:42,530 anterior superiorly من الأمام ومن أعلى 159 00:15:42,530 --> 00:15:45,790 communicates 160 00:15:45,790 --> 00:15:51,450 مع both lateral ventricles عن طريق ايه؟ 161 00:15:51,450 --> 00:15:55,670 Interventricular foramen of Monroe two Monroe 162 00:15:55,670 --> 00:16:01,930 اثنين posterior inferiorly من الخلف ومن تحت 163 00:16:01,930 --> 00:16:10,380 communicates withfourth ventricle عن طريق ايه؟ 164 00:16:10,380 --> 00:16:15,200 sylvius او cerebral aqueduct اللي هو يعتبر cavity 165 00:16:15,200 --> 00:16:22,120 of midbrain cavity of midbrain هاي عندنا 166 00:16:22,120 --> 00:16:29,880 interthalamic adhesion هاي منروفورامين وهي عندي 167 00:16:29,880 --> 00:16:33,880 ايه؟ cerebral aqueduct اللي بربط ما بين 168 00:16:38,960 --> 00:16:49,740 third ventricle مع مين؟ مع fourth ventricle و 169 00:16:49,740 --> 00:17:03,620 anterior superior ليه؟ عندي من عندي 170 00:17:03,620 --> 00:17:04,280 في ايه؟ 171 00:17:08,720 --> 00:17:13,100 من رو فورامن Right 172 00:17:13,100 --> 00:17:17,600 and left بيعمل connection بين ال lateral ventricle 173 00:17:17,600 --> 00:17:21,680 مع مين؟ مع ال third ventricle يعني هي عندي lateral 174 00:17:21,680 --> 00:17:26,340 ventricles عن طريق من رو ارتبطوا مع ال third 175 00:17:26,340 --> 00:17:29,800 ventricle ال third ventricle عن طريق سربع ال 176 00:17:29,800 --> 00:17:34,710 aqueductمع مين؟ مع ال fourth ventricle هاد ال 177 00:17:34,710 --> 00:17:40,870 communication between the ventricular system واضح 178 00:17:40,870 --> 00:17:45,290 ان دي lateral ventricle communicates مع ال third 179 00:17:45,290 --> 00:17:47,530 ventricle عن طريق interventricular foramen of 180 00:17:47,530 --> 00:17:51,410 Monroe and right and left Monroe بعدين third 181 00:17:51,410 --> 00:17:54,690 ventricle عن طريق cerebral aqueduct أو sylvius 182 00:17:54,690 --> 00:17:58,410 aqueduct communicates with ايش؟ with fourth 183 00:17:58,410 --> 00:17:58,990 ventricle 184 00:18:19,220 --> 00:18:25,960 الان بنتقل لل fourth ventricle 185 00:18:25,960 --> 00:18:31,960 هذا 186 00:18:31,960 --> 00:18:38,020 left lateral ventricle 187 00:18:38,020 --> 00:18:42,800 okay fourth 188 00:18:42,800 --> 00:18:50,070 ventricle it is cavity of hind brainو ممكن اقول it 189 00:18:50,070 --> 00:18:55,770 is cavity of rhombocephalon وين موجود؟ located 190 00:18:55,770 --> 00:19:00,010 between cerebellum 191 00:19:00,010 --> 00:19:05,470 and pons medulla blankata يعني بيحدوا من الخلف 192 00:19:05,470 --> 00:19:12,990 الcerebellum و بيحدوا من الأمام ال pons و ال upper 193 00:19:12,990 --> 00:19:18,170 medulla او open medullaطيب بكلام ثاني لو بدى نصيغه 194 00:19:18,170 --> 00:19:26,490 وين موجود ال fourth ventricle located between the 195 00:19:26,490 --> 00:19:34,630 dorsal cervix of pons and open medulla and 196 00:19:35,750 --> 00:19:40,130 ventral service of cerebellum يبقى ان هو ال cavity 197 00:19:40,130 --> 00:19:46,190 هذا محصور ما بين ال ventral cavity of cerebellum 198 00:19:46,190 --> 00:19:51,970 من الخلف و ال dorsal service بتاع ال palms و ال 199 00:19:51,970 --> 00:19:59,390 upper medulla او open medulla من الأمام تمام ال 200 00:19:59,390 --> 00:20:05,590 angles الموجودة في ال fourth ventricleأول شيء فيه 201 00:20:05,590 --> 00:20:11,190 superior angle و inferior angle و lateral angle 202 00:20:11,190 --> 00:20:19,030 superior angle بفتح فيه اللي هو silvius aqueduct 203 00:20:19,030 --> 00:20:24,270 أو cerebral aqueduct من أعلى superior angle ال 204 00:20:24,270 --> 00:20:30,470 inferior angle بيمر في ال central spinal canal 205 00:20:30,470 --> 00:20:35,530 بيمر في ال closed medullaطيب و ال lateral angle 206 00:20:35,530 --> 00:20:41,470 right and left lateral angle بيمر فيه فرمن اسمه 207 00:20:41,470 --> 00:20:45,530 logica right logica فرمن و left logica فرمن كمان 208 00:20:45,530 --> 00:20:54,110 مرة في عندي superior angle تشوف مع الصورة هيهم هي 209 00:20:54,110 --> 00:21:02,290 angle superior angle مين فاتح فيه فاتح اللي هو 210 00:21:07,180 --> 00:21:13,880 cerebral aqueduct هذا في ال superior angle طب في 211 00:21:13,880 --> 00:21:21,020 ال inferior angle هى inferior angle بفتح 212 00:21:21,020 --> 00:21:26,120 فيه central 213 00:21:26,120 --> 00:21:29,260 central 214 00:21:30,080 --> 00:21:34,500 Spinal Canal Central Spinal Canal اللي بيمر وين؟ 215 00:21:34,500 --> 00:21:37,680 أول شي بيمر في الـ Closed Medulla وبعدين بيمر في 216 00:21:37,680 --> 00:21:43,320 Spinal Cord يبقى عندي Inferior Angle فاتح فيه اللي 217 00:21:43,320 --> 00:21:47,840 هو Central Spinal Canal وفي Superior Angle فاتح 218 00:21:47,840 --> 00:21:53,520 Cerebral أو Silvius Aqueduct وفي عندي Lateral 219 00:21:53,520 --> 00:22:01,080 Angle Lateral Angle Right and Leftlateral angle 220 00:22:01,080 --> 00:22:06,680 بفتح فيهم فرمن على ال right اسمه right lochka 221 00:22:06,680 --> 00:22:10,680 foramen وعلى ال left اسمه left lochka foramen يبقى 222 00:22:10,680 --> 00:22:15,120 بالطريقة هذه انا شرحتلكم ال angles of fourth 223 00:22:15,120 --> 00:22:22,400 ventricle الآن 224 00:22:22,400 --> 00:22:27,480 صار الموضوع سهل communications of the fourth 225 00:22:27,480 --> 00:22:32,860 ventricle انا اتكلمتعن communication بين ال fourth 226 00:22:32,860 --> 00:22:40,720 ventricle ها هي و ال third ventricle اسمها silvius 227 00:22:40,720 --> 00:22:44,140 او cerebral aqueduct بتكون فاتحة في ال superior 228 00:22:44,140 --> 00:22:49,560 angle طب في ال inferior angle في communications 229 00:22:49,560 --> 00:22:57,400 اسمها central 230 00:23:01,100 --> 00:23:09,160 spinal canal طيب 231 00:23:09,160 --> 00:23:16,420 في ال lateral angle على ال right و على ال left في 232 00:23:16,420 --> 00:23:24,340 right and left formina 233 00:23:24,340 --> 00:23:27,720 logica 234 00:23:30,810 --> 00:23:34,810 طيب في ال media .. بصير ال media في ال .. في ال 235 00:23:34,810 --> 00:23:40,490 report فيها فرمان 236 00:23:40,490 --> 00:23:44,670 مجندي 237 00:23:44,670 --> 00:23:50,970 .. فرمان مجندي او مجندي يقول عندي كام صاروا .. 238 00:23:50,970 --> 00:23:54,970 صاروا اربعة صاروا كام فرمان او communication اربعة 239 00:23:55,910 --> 00:24:00,810 Cerebral Aqueduct أو Central أو Sylvius Aqueduct 240 00:24:00,810 --> 00:24:04,690 هو عبارة عن connection between fourth and third 241 00:24:04,690 --> 00:24:10,390 ventricle Central Spinal Canal بيصرف جزء من ال CSF 242 00:24:10,390 --> 00:24:16,800 على ال central spinal canal لمين؟ لل spinal cordو 243 00:24:16,800 --> 00:24:21,160 ثلاثة فرامنة .. يعني ثلاثة فرامنة تولوشكة فرامنة 244 00:24:21,160 --> 00:24:24,340 بيكون اللاترال أو وان ماجيندي فرامن بيكون 245 00:24:24,340 --> 00:24:30,450 بوستيريور هدول بيصرفوا ال CSFمن ال fourth 246 00:24:30,450 --> 00:24:36,530 ventricle ل subarachnoid space and subarachnoid 247 00:24:36,530 --> 00:24:40,210 cistern subarachnoid space and subarachnoid 248 00:24:40,210 --> 00:24:45,970 cistern و احنا اتفجنا ان ال cistern هي عبارة عن 249 00:24:45,970 --> 00:24:54,690 widening place of subarachnoid space هاي 250 00:24:54,690 --> 00:24:58,630 ممكن مرة نشرحهم هنا communications او نشوف صورة 251 00:24:58,630 --> 00:24:58,950 تانية 252 00:25:02,160 --> 00:25:05,680 هنا واضح هى ال communication بتاعة ال fourth 253 00:25:05,680 --> 00:25:10,960 ventricle نرسم ال fourth ventricle هذا هو ال ايه 254 00:25:10,960 --> 00:25:18,400 fourth ventricle اول 255 00:25:18,400 --> 00:25:22,500 communication مع ال superior angle عن طريق 256 00:25:22,500 --> 00:25:29,040 cerebral aqueduct او sylvius aqueduct هى اول واحد 257 00:25:30,920 --> 00:25:35,680 Central Spinal Canal في الـ Closed Medulla وبعدين 258 00:25:35,680 --> 00:25:41,900 في Spinal Cord ثلاثة وأربعة في الـ Lateral بيكون 259 00:25:41,900 --> 00:25:47,740 عندي فرع من Logica Right and Left و posteriorly 260 00:25:47,740 --> 00:25:53,070 بيكون فرع من Magendieالسيلفياس اكويداكت او 261 00:25:53,070 --> 00:25:56,470 cerebral aqueduct بربط ال third ventricle مع ال 262 00:25:56,470 --> 00:26:03,670 fourth ventricle Central spinal canal بعمل 263 00:26:03,670 --> 00:26:06,970 connection ما بين ال fourth ventricle مع ال 264 00:26:06,970 --> 00:26:11,090 central spinal canal بتاعة ال spinal cordفورا من 265 00:26:11,090 --> 00:26:15,370 الوشكا او ماجيندي بيصرفوا ال CSF من ال fourth 266 00:26:15,370 --> 00:26:20,010 ventricle لال subarachnoid space والsubarachnoid 267 00:26:20,010 --> 00:26:24,190 cistern وقولنا ال cistern هي عبارة عن widening 268 00:26:24,190 --> 00:26:32,310 place of subarachnoid space هيك بيكون انا شرحتلكم 269 00:26:32,310 --> 00:26:39,700 ال ventricular system هاي واضح syllabus aqueductأو 270 00:26:39,700 --> 00:26:43,140 cerebroacviduct واضح عندي central spinal canal 271 00:26:43,140 --> 00:26:47,720 واضح عن الوجكا المجندي foramen وفي ال lateral 272 00:26:47,720 --> 00:26:54,080 بيكون two logica foramina cerebrospinal fluid أخر 273 00:26:54,080 --> 00:26:58,340 جزئية في المحاضرة cerebrospinal fluid هي عبارة عن 274 00:26:58,340 --> 00:27:04,040 fluid which circulates in the ventricles and 275 00:27:04,040 --> 00:27:11,200 central canal of CNSوأيضًا تدفع إلى الـ 276 00:27:11,200 --> 00:27:18,340 Subarachnoid space الـ production of CSF بتتم من 277 00:27:18,340 --> 00:27:23,220 ابن دايمة ال cells موجودة في الكرويذيا لبليكساس of 278 00:27:23,220 --> 00:27:27,560 lateral third and fourth ventricle لكن أكتر شيء 279 00:27:27,560 --> 00:27:33,410 بيكون في ال lateral ventricleبين دايما بتعمل 280 00:27:33,410 --> 00:27:40,610 extraction او production لل CSF من ال capillaries 281 00:27:40,610 --> 00:27:45,630 بتاعة الارتريز وبتعمل عملية فلترة وبتخرج ال CSF من 282 00:27:45,630 --> 00:27:48,210 ال blood من ال arterial blood في ال ventricular 283 00:27:48,210 --> 00:27:53,910 system circulation of CSF سيبونا من ال slide هذا 284 00:27:53,910 --> 00:27:58,410 نتبع مع بعض على slide هان او بتقول على ال slide 285 00:27:58,410 --> 00:28:01,730 اللي أنا رسمته نفس الشيء على الصورة اللي رسمتهاالـ 286 00:28:01,730 --> 00:28:07,190 CSF اللى تم اله production من الـ third ventricle 287 00:28:07,190 --> 00:28:11,910 بعبر عن طريق الـ interventricular forum من أومنروه 288 00:28:11,910 --> 00:28:16,690 right and left و بيروح لوين؟ لل third ventricle ها 289 00:28:16,690 --> 00:28:25,090 ايه دخل و راحوا لوين؟ ل .. نرسم بلون ثاني و راحوا 290 00:28:25,090 --> 00:28:29,350 ل .. لل third ventricle 291 00:28:35,420 --> 00:28:39,120 هيو بيسلموا على ال third ventricle و بياخدوا ال 292 00:28:39,120 --> 00:28:43,660 CSF من ال third ventricle و بيدخلوا لوين؟ 293 00:28:43,660 --> 00:28:48,640 لcerebral aqueduct و 294 00:28:48,640 --> 00:28:53,320 بيروحوا لوين؟ لال third من ال third ventricle 295 00:28:53,320 --> 00:28:57,980 بيروحوا لال fourth ventricle جزء بسيط من ال CSF 296 00:28:58,630 --> 00:29:03,510 بيروح ل central spinal canal ل central spinal 297 00:29:03,510 --> 00:29:08,730 canal الجزء الأكبر بيغادر ال ventricles عن طريق 298 00:29:08,730 --> 00:29:12,570 ماجيندي فورامنا و لوشكا فورامنا right and left 299 00:29:12,570 --> 00:29:17,710 بيغادروا من لوشكا و من ماجيندي فورامنا و أين 300 00:29:17,710 --> 00:29:25,070 بيطلعوا؟الـ subarachnoid space of the brain and 301 00:29:25,070 --> 00:29:30,710 subarachnoid space of spinal cord هيك بالطريقة هذه 302 00:29:30,710 --> 00:29:35,570 انا شرحتلكوا كله على ال slide واضح و سلس و سهل و 303 00:29:35,570 --> 00:29:42,250 مش صعب نتبع 304 00:29:42,250 --> 00:29:46,850 مع بعض السلس اللي جابنا نشوفهThe CSF in each 305 00:29:46,850 --> 00:29:49,490 lateral ventricle بمورف الـ Interventricular 306 00:29:49,490 --> 00:29:54,010 Foramen of Monroe بعد ذلك للثيرد Ventricle عن طريق 307 00:29:54,010 --> 00:29:58,090 Aqueduct of Silvius أو Silvius Aqueduct بمورفيه 308 00:29:58,090 --> 00:30:02,110 وبعدها بنتجل لل fourth ventricle جزء من ال CSF 309 00:30:02,110 --> 00:30:06,090 بيروح لل Central Spinal Canalوالجزء الأكبر بيروح 310 00:30:06,090 --> 00:30:10,230 عن طريق ثلاثة فرامين ماجيندي و تولوشكا فرامين 311 00:30:10,230 --> 00:30:14,930 بيروح لها ال subarachnoid space و ال subarachnoid 312 00:30:14,930 --> 00:30:19,150 cistern من ضمنهم cerebellum medullary cistern و 313 00:30:19,150 --> 00:30:23,590 بنتين cistern كمان هدول موجودين في ال subarachnoid 314 00:30:23,590 --> 00:30:28,740 spaceمنهم بيروح للـ subarachnoid space بتاعة ال 315 00:30:28,740 --> 00:30:32,500 brain وال spinal cord هيك بيكون عاملنا واتكلمنا 316 00:30:32,500 --> 00:30:38,570 على ال circulation of CSF طب absorption of CSF؟ال 317 00:30:38,570 --> 00:30:43,390 absorption of CSF بتم عن طريق اللي هي arachnoid 318 00:30:43,390 --> 00:30:47,370 villi and arachnoid granulation شرحت لكم بيام في 319 00:30:47,370 --> 00:30:51,350 arachnoid مطر و بيتم absorption و reabsorption 320 00:30:51,350 --> 00:30:56,050 بتاعة ال CSF للي ديورال venous sinuses و من لي 321 00:30:56,050 --> 00:30:58,910 ديورال venous sinuses بتروح على ال jugular vein و 322 00:30:58,910 --> 00:31:02,430 منهم بتروح على ال venous blood و ال venous blood 323 00:31:02,430 --> 00:31:10,100 stream لاللي هو right atrium of the heartهذا واضح 324 00:31:10,100 --> 00:31:13,560 عندي اللي هم arachnoid granulation الـ arachnoid 325 00:31:13,560 --> 00:31:16,300 villi بيكونوا microscopic بياخدوا ال CSF من ال sub 326 00:31:16,300 --> 00:31:19,660 arachnoid space و بيسلموه لديور ال venous sinuses 327 00:31:19,660 --> 00:31:23,700 what's the function of CSF؟ ايش ال functions تبع 328 00:31:23,700 --> 00:31:29,120 ال CSF؟ اول شي support and protect the CNS against 329 00:31:29,120 --> 00:31:34,420 trauma بيعملوا عملية امتصاص للصدماتTake place of 330 00:31:34,420 --> 00:31:38,620 the lymph بعملوا protection لل CNNS من ال micro 331 00:31:38,620 --> 00:31:44,700 organism Regulation of the intracranial pressure 332 00:31:46,010 --> 00:31:49,250 لأنه احنا اول شي برجع لرقم اتنين قلنا بيعملوا 333 00:31:49,250 --> 00:31:52,590 عملية protection against microorganism لإنه ال CNS 334 00:31:52,590 --> 00:31:56,810 مافيش في ال CNS lymph أو lymph nodes او lymphatic 335 00:31:56,810 --> 00:32:01,730 vessels مين بيقوم في الحاجة هذه اللي هو ال CSF زاد 336 00:32:01,730 --> 00:32:06,670 اللي هو microglial cellsregulation of the 337 00:32:06,670 --> 00:32:10,330 intracranial pressure remove metabolites and 338 00:32:10,330 --> 00:32:13,810 toxics from the central nervous system and 339 00:32:13,810 --> 00:32:18,970 nourishment function of CNS بيعملوا عملية تغذية لل 340 00:32:18,970 --> 00:32:23,290 CNS هنا بزيلوا المواد والفضلات اللي بتخرج من 341 00:32:23,290 --> 00:32:27,310 الميتاباليزم والمواد السامة من ال brainالـ 342 00:32:27,310 --> 00:32:32,430 Characters of the normal CSF Appearance بيكون 343 00:32:32,430 --> 00:32:35,970 Clear Water Fluid Isotenic بيكون لون لون الماء ال 344 00:32:35,970 --> 00:32:39,510 amount حوالي 100 ل 150 ملي لتر ال replacement 345 00:32:39,510 --> 00:32:45,150 بتغير تلاث مرات هذا ال CSF بيحدث production تقريبا 346 00:32:45,150 --> 00:32:48,590 تلاتة من عشرة لاربع من عشرة ملي لتر بالدقيقة 347 00:32:48,590 --> 00:32:53,770 الواحدة في اليوم بيصنع جسمنا من أربع مية لخمس مائة 348 00:32:53,770 --> 00:32:59,380 ملي لتر CSFال pressure بتاعه 100 ل 180 millimeter 349 00:32:59,380 --> 00:33:02,720 of water ال blood pressure بيكون of mercury هانه 350 00:33:02,720 --> 00:33:06,960 of water ال rate of production قلناه cells بيكونوا 351 00:33:06,960 --> 00:33:10,100 ال cells ال white blood cells بيكونوا من 0 ل 5 و 352 00:33:10,100 --> 00:33:13,580 بيكونوا كلهم lymphocytes بيكونوا كلهم lymphocytes 353 00:33:13,580 --> 00:33:17,440 ولا واحدة نيترو فيلز ال RBCs كلوات الدم الحمراء 354 00:33:17,440 --> 00:33:19,900 لازم تكون zero مش موجودة كلوات الدم الحمراء 355 00:33:20,390 --> 00:33:25,450 الجلوكوز 60 ميلي جرام لديسلتر و أصحى نقول 70% من 356 00:33:25,450 --> 00:33:27,530 الـ Ceramic Glucose لأنه ممكن المريض يكون مريض 357 00:33:27,530 --> 00:33:30,770 سكر، سكره عالي أو العكس، سكره محروق يبقى بتتم 358 00:33:30,770 --> 00:33:33,830 المقارنة مع الـ Ceramic Glucose و الـ Total 359 00:33:33,830 --> 00:33:39,090 Protein من 15 ل 50 ميلي جرام لديسلتر، أنا بدي أشرح 360 00:33:39,090 --> 00:33:43,600 بس لو .. لو حدث ال tumor هنالو اجت tumor في ال 361 00:33:43,600 --> 00:33:49,120 midbrain او في الcerebellum وضغط على ايه؟ على اللي 362 00:33:49,120 --> 00:33:52,220 هو ال Sylvius aqueduct، cerebral aqueduct في 363 00:33:52,220 --> 00:33:56,940 الحالة هذه بيحدث عندنا حاجة اسمها hydrocephalus، 364 00:33:56,940 --> 00:34:00,450 بيصير انتفاخفي البطين في الحالة هاد راح يصير 365 00:34:00,450 --> 00:34:04,130 dilatation في ال third ventricle و ال both 366 00:34:04,130 --> 00:34:09,150 ventricle لكن لو حدث exclusion في one monroe يصير 367 00:34:09,150 --> 00:34:12,910 dilatation في one lateral ventricle two monroe في 368 00:34:12,910 --> 00:34:15,770 ال two lateral ventricles و هكذا 369 00:34:18,850 --> 00:34:21,890 بهيك بنكون ان شاء الله وصلنا لنهاية المحاضرة بتاعة 370 00:34:21,890 --> 00:34:25,070 ال mini G و هي ال ventricular system of the brain 371 00:34:25,070 --> 00:34:27,870 and cerebrospinal fluid circulation