keel meaning, keel definition | English Cobuild dictionary. Search also in: Web News Encyclopedia Images. keel. ( keels plural & 3rd person present) ( keeling present participle) ( keeled past tense & past participle ) 1 n-count The keel of a boat is the long, specially shaped piece of wood or steel along the bottom of it.
The segmental arteries divide within the renal sinus to form the interlobar arteries which enter the kidney crossing the space between the calyces and adjacent cortical parenchyma, they continue by the space between pyramids (medulla) and the septa or columns of Bertin (the cortical tissue that surrounds pyramids).
The region of the distal convoluted tubule in contact with the granular cells of the afferent arteriole is called the macula dense. 26. Within each kidney, the interlobar veins empty their blood into the renal vein. 27. In the female urinary system, the urethral orifice is situated posterior to the vaginal orifice.