Which of the following layers forms the bulk of the heart wall?
A. epicardium
B. pericardium
C. endocardium
D. myocardium
E. visceral pericardium
D
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This figure shows the femur. Which number indicates the gluteal tuberosity?
A. 7 B. 10 C. 2 D. 8 E. 9
Blood from the brain returns to the heart through the ________ vein
A) vertebral B) azygos C) innominate D) internal jugular E) external jugular
What studies have suggested that the ANS can also be subject to voluntary controls?
What will be an ideal response?
The corpus luteum
A. degenerates into the corpus albicans if pregnancy does not occur. B. is absolutely necessary during the first three months of pregnancy. C. produces mostly progesterone, but also some estrogen. D. degenerates into the corpus albicans if pregnancy does not occur and produces mostly progesterone, but also some estrogen. E. degenerates into the corpus alibicans if pregnancy does not occur, is absolutely necessary during the first three months of pregnancy, and produces mostly progesterone, but also some estrogen.