As an adult ages, the symphysial surface of the pubis
A. becomes more flattened, and the bony ridge at its circumference progressively disappears.
B. becomes more flattened, and a bony rim forms at its circumference.
C. becomes more billowed, and the bony ridge at its circumference progressively disappears.
D. becomes more billowed, and a bony rim forms at its circumference.
B
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The sweat glands that communicate with skin surfaces throughout the body, producing a secretion that is primarily water, are
a. apocrine glands. b. merocrine glands. c. sebaceous glands. d. ceruminous glands.
A woman brings her 4-year-old daughter to the pediatrician because of continuing problems with vomiting, constipation, and abdominal distension. Extensive examination results in a diagnosis of an aganglionic colon. The girl has a deficiency in which of the following neural cell types?
(A) Pseudounipolar sensory neurons (B) Presynaptic sympathetic neurons (C) Presynaptic parasympathetic neurons (D) Postsynaptic sympathetic neurons (E) Postsynaptic parasympathetic neurons
What causes closure of the foramen ovale at birth?
A. A rise in fetal oxygen levels, which triggers growth of the epithelial lining B. Rapid myocardial tissue growth stimulated by pregnancy hormones C. Higher pressure in the left atrium, which causes interatrial septum flaps to close D. Migration of connective tissue from the right atrioventricular valve E. An increase in endothelial mucous production, which forms a plug
You are sitting on a sunny Florida beach experiencing the sensation of warmth. Describe the anatomical structures and physiological events that allow you to perceive the warmth of the sun
What will be an ideal response