Chemical Messengers 3. Hormones â¢Longârange messengersâ¢Secreted into blood by endocrine glands in response to appropriate signalâ¢Exert effect on target cells some distance away from release site 4.hemical Messengers 3. Hormones â¢Longârange messengersâ¢Secreted into blood by endocrine glands in response to appropriate signalâ¢Exert effect on target cells some distance away from release site 4.
Scale box in millimeters. Vesicular texture is a volcanic rock texture characterized by a rock being pitted with many cavities (known as vesicles) at its surface and inside.
Normal Breath Sounds: Type: Description: Location: Characteristics: Vesicular: Soft-intensity, low-pitched, âgentle-sighingâ sounds created by air moving through smaller airways (bronchioles and alveoli) Over peripheral lung; best heard at base of lungs: Best heard on inspiration, which is about 2.5 times longer than the expiratory phase (5:2 ratio)