A major difference between fetal blood flow and adult blood flow is that in the fetus the
A) inferior vena cava contains blood high in oxygen.
B) internal iliac arteries are known as umbilical arteries.
C) femoral vein contains blood low in oxygen.
D) pulmonary artery delivers blood to the lungs.
A
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If a thyroid tumor secreted an excessive amount of calcitonin, we would expect ___________.
A. an elevated level of osteoclast activity B. an elevated level of osteoblast activity C. a reduced rate of endochondral ossification D. a rise in blood calcium concentration E. increasingly brittle bones
Blood loss is likely to stimulate the secretion of higher than normal plasma levels of erythropoietin.
Answer the following statement true (T) or false (F)
Two thieves steal jewelry, and then drop it as they are escaping. The police recover the
jewelry, and an officer explains on the evening news that fingerprints were obtained from the back of a watch. The thieves, whose prints are not on file, believe that they can escape prosecution by using acid to remove the epidermis on their fingerpads, so as not to be a match for the fingerprints on the watch. They are wrong because A) the epidermis will regrow the friction ridges in a day. B) the friction ridges will not grow back in the same pattern. C) the prints arise from the subcutaneous layer, which is not destroyed. D) the prints arise from friction ridges of the dermis, which are not destroyed.
Visceral afferent neurons
a. carry information out of the CNS. b. carry information into the CNS from organs and glands. c. carry information regarding sensations from the skin d. two of these answers. e. all of these answers.