How many bones are found in the arm or brachial region?
A) 25 B) 11 C) 2 D) 1
Answer: D
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An increase in the permeability of the cells of the collecting tubule to water is due to a(n) ________.
A) decrease in the production of ADH B) increase in the production of ADH C) increase in the production of aldosterone D) decrease in the concentration of the blood plasma
Visceral reflex arcs do NOT control:
A) voluntary muscle functions. B) digestion. C) blood pressure. D) heart rate.
Which type of lymphocyte has coreceptors that assist in the interaction of the lymphocyte with a cell presenting antigen?
A. B-lymphocyte B. T-lymphocyte
The sarcoplasmic reticulum stores ____ when a muscle is relaxed and releases it for binding to ____ during contraction
a. calcium, troponin b. calcium, tropomyosin c. sodium, tropomyosin d. potassium, tropomyosin e. sodium, troponin