Mothers who breast-feed their children will lose a percentage of calcium from their bones. Which hormone is responsible for raising blood calcium levels when they drop below homeostatic levels?
A) calcitonin
B) parathyroid hormone (PTH)
C) insulin
D) growth hormone
B
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Drugs that increase the actions of norepinephrine and/or serotonin by keeping them in synapses longer are most likely used to treat
A. clinical depression. B. multiple sclerosis. C. Tay-Sachs disease. D. erectile dysfunction.
What part of the eye prevents the eyeball from collapsing?
A) ciliary processes B) aqueous humor C) vitreous body D) suspensory ligaments
If a virus were to infect and destroy the cells of the vestibular nucleus, which of the following would result?
A. Deafness B. Loss of gustation C. Loss of olfaction D. Loss of equilibrium E. Blindness
In the spinal cord, white matter surrounds (is external to) the gray matter.
Answer the following statement true (T) or false (F)