When walking, which muscle flexes your forearm?
A) teres major B) deltoid C) brachioradialis D) triceps brachii
Answer: C
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A hospital patient produces 4 mL/min of urine with a urea concentration of 8 mg/mL. Venous blood draw reveals urea concentration of 0.4 mg/mL. What is the percentage of cleared urea from glomerular filtrate?
A. 80% B. 40% C. 56% D. 64% E. 72%
Viagra works by blocking ________ , which raises cGMP concentration, and promotes vasodilation of vascular smooth muscle of the penis.
A. aromatase B. cGMP phosphodiesterase C. ATPase D. 5-alpha reductase
What happens when troponin and tropomyosin block the active sites of actin?
A) The muscle produces a weak contraction. B) The muscle contraction reaches peak tension. C) The muscle contraction increases tension. D) The muscle relaxes.
The pulmonary circuit is supplied by both the right and the left sides of the heart.
Answer the following statement true (T) or false (F)