Which vessel has greatest ability to change diameter?
a. arteriole
b. systemic artery
c. capillary
d. aorta
Answer is a. arteriole
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Answer the following statements true (T) or false (F)
1. Regardless of type, all levers follow the same basic principle: effort farther than load from fulcrum = mechanical advantage; effort nearer than load to fulcrum = mechanical disadvantage. 2. Movements of the thigh are accomplished by muscles anchored to the pelvic girdle. 3. The biceps brachii inserts on the radius. 4. The chewing muscle covering the ramus of the mandible is the buccinator. 5.The deltoid is a prime mover of the arm that acts in adduction.
Why might electrolyte balance be disturbed in an individual who suffers from Addison disease?
A. There is hypersecretion of cortisol. B. There is hypersecretion of aldosterone. C. There is hyposecretion of cortisol. D. There is hyposecretion of aldosterone. E. There is hypersecretion of renin.
Which of the following is not a plasma protein?
a. angiotensinogen b. anti-Rh antibodies c. prothrombin d. fibrin e. plasminogen
Norepinephrine is a catecholamine.
Answer the following statement true (T) or false (F)