The _______ nuclei within the gray matter of the spinal cord send nerve impulses to skeletal muscles
A. visceral sensory
B. somatic sensory
C. autonomic motor
D. somatic motor
D
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The ________ function(s) in visual attention, such as to look and follow the flight of a butterfly
A) substantia nigra B) inferior colliculi C) superior colliculi D) tegmentum E) red nucleus
Which of the following statements is false concerning the movement of fluid between capillaries and interstitial space?
A) Blood hydrostatic pressure forces fluid from the capillary to the interstitial space. B) Blood osmotic pressure moves fluid from the interstitial space to the capillary. C) The osmotic pressure of the interstitial fluid is less than the blood osmotic pressure. D) The hydrostatic pressure of the interstitial fluid is largely unimportant in determining fluid movement. E) The net filtration pressure is usually zero.
Which of the following statements regarding Ca2+ homeostasis is TRUE?
A. In the absence of parathyroid hormone, plasma Ca2+ levels would be abnormally low, resulting in the hyperpolarization of nerve and muscle membranes. B. Parathyroid hormone directly stimulates Ca2+ absorption from the GI tract. C. When plasma Ca2+ increases above normal, the secretion of parathyroid hormone increases. D. Vitamin D decreases the renal tubular reabsorption of Ca2+. E. Parathyroid hormone directly stimulates Ca2+ reabsorption by the kidneys.
Which of the following vitamins is necessary for producing collagen?
A. Vitamin D B. Biotin C. Vitamin C D. Thiamine