What would be the effect on a pregnancy if the placenta failed to begin functioning during the third month of gestation?
A) There would be no effect on the pregnancy.
B) The pregnancy could not continue.
C) The corpus luteum would continue hormone production as an alternative source until
birth.
D) The fetus would be born prematurely.
E) None of the answers are correct.
B) The pregnancy could not continue.
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The peripheral chemoreceptors are not activated during carbon monoxide poisoning despite the fact that the total O2 content in the blood can become lethally low
Indicate whether the statement is true or false
Pepsinogen, a digestive enzyme, is secreted by which cells of the stomach?
A) None of the listed responses is correct. B) parietal cells C) mucus neck cells D) chief cells
Decreased blood flow to the kidneys would not lead to which of the following?
A) increased blood levels of renin B) elevated blood levels of angiotensin C) increased blood levels of erythropoietin D) increased release of ADH E) increased release of natriuretic peptide
The diaphragm is
A. a skeletal muscle. B. involved in breathing. C. the floor of the chest cavity. D. All apply.