The pigment of the skin which contributes most to skin coloration is ________.
A. melanin
B. keratin
C. hemoglobin
D. carotene
Answer: A
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Ensuring that young children have a sufficient amount of vitamin D will prevent ________.
A. rickets B. osteomalacia C. osteoporosis D. Paget's disease
All of the following occur during water intoxication except
a. cellular swelling b. ECF hypotonicity c. excess free water retention d. water movement from ICF to ECF e. overhydration
Which type of anemia is caused by a genetic abnormality?
a. pernicious b. hemorrhagic c. sickle-cell d. nutritional e. iron-deficient
What is the function of enteric sensory neurons?
A. Stimulate or inhibit smooth muscle contraction in the digestive tract B. Stimulate or inhibit glandular secretion in the digestive tract C. Both "Detect changes in chemical composition of digestive tract contents" and "Detect stretch of the digestive tract wall" are correct. D. Detect stretch of the digestive tract wall E. Detect changes in chemical composition of digestive tract contents