If a thyroid tumor secreted an excessive amount of calcitonin, which of the following would we expect to see?
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
B. An elevated level of osteoblast activity
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What connects the pharynx to the trachea?
A. Esophagus B. Bronchi C. Alveolar ducts D. Larynx E. Nasal cavity
Which cells release hydrochloric acid (HCl) into the stomach?
A) diffuse neuroendocrine system (DNES) cells B) mucous neck cells C) chief cells D) parietal cells
?The ____ plane divides the body into two equal left and right portions
a. transverse
b. frontal
c. horizontal
d. midsagittal
Which of the following leads to an increase in the ratio of LDL cholesterol to HDL cholesterol?
A. estrogens B. cigarette smoking C. exercise D. weight reduction E. All of these increase the LDL:HDL ratio.