The peripheral nervous system has
a. 12 cranial nerves and 20 spinal nerves
b. only a few tracts
c. 24 cranial nerves and 31 spinal nerves
d. 24 cranial nerves and 62 spinal nerves
e. 12 cranial nerves and 31 spinal nerves
D
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The small pit on the head of the femur is the
A. linea aspera. B. fovea capitis. C. adductor tubercle. D. styloid process.
Select the correct statement about the uterine cycle.
A) The menstrual phase of the cycle is from day 1 to day 8. B) During the secretory phase, estrogen levels are at their highest. C) During the proliferative phase, levels of progesterone rise as the follicle begins to produce more hormone. D) If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo.
Blood flow to the right side of the heart muscle decreases due to constriction of the
_____, and decreased blood flow to the heart tissue can result in _____. A) left coronary artery; mitral valve prolapse B) left coronary vein; myocardial infarction C) right pulmonary artery; endocarditis D) right coronary artery; ischemia
An important buffer in body fluids is
A) NaCl. B) NaOH. C) HCl. D) NaHCO3. E) H2O.