5 Written Questions
5 Matching Questions
- Acute Hypotension
- Sinusoidal Capillaries
- Antidiuretic Hormone
- Tunica Media
- What are Capillaries composed of?
- a Smooth muscle and elastic fiber layer, regulated by sympathetic nervous system.
- b Endothelium with sparse basal lamina.
- c Important sign of circulatory shock.
- d (ADH)-(Vasopressin) - Causes intense vasoconstriction in cases of extremely low BP. Increases BP.
- e Have large fenstrations and intercellular clefts for the greatest permeability, even allowing passage of blood cells.
5 Multiple Choice Questions
- Pressure wave caused by the expansion and recoil of elastic arteries. Varies with health, body position, and activity.
- Reflects two factors of the arteries close to the heart. The elasticity (compliance or distensibility), and the amount of blood forced into them at any given time.
- Vasoconstriction/vasodilation of vessels.
- Occurs when short term autoregulation cannot meet tissue nutrient requirements. Either the number of vessels to a region increases or existing vessels enlarge.
- Blood viscosity, total blood vessel length, blood vessel diameter.
5 True/False Questions
What is the central blood containing space surrounded by the tunics? → Lumen.
Nitric Oxide → NO - is a brief but potent vasodilator. Decrease BP.
Blood Viscosity → The longer the vessel, the greater the resistance encountered.
Alcohol → Small arteries that lead into capillary beds; controls blood flow into capillary beds by vasodilation and vasoconstriction; Deliver blood to capillaries.
tunics that compose the Arteries and Veins → Thick walled arteries near the heart. Act as pressure reservoirs - expand and recoil as blood is ejected from the heart.
Conduct blood from the heart into Muscular Arteries.