The heart is
a. sympathetically innervated via cardiac nerve fibers
b. parasympathetically innervated by vagus nerve fibers
c. only partly innervated by the somatic nervous system
d. innervated by only the sympathetic division of the autonomic nervous system
e. both a and b
E
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Jill is Rh negative. Her first baby was Rh negative. She is pregnant again, but the baby is Rh positive. Without medical treatment, will her antibodies attack the baby's blood?
A) Yes B) No C) Probably not since her first child is Rh negative D) Probably yes since her first child is Rh negative
Where on the leg is the superficial and easily palpable portion of the soleus located?
a. Anteriorly b. Posteriorly c. Dorsally d. Laterally
Answer the following questions true (T) or false (F)
1. Hydrogen ion secretion leads to bicarbonate ions reabsorption in order to maintain proper blood pH balance. 2. Since the thin descending limb of the nephron loop is permeable to water, and not very permeable to solutes, the concentration of the filtrate will increase as it reaches the bottom of the loop. 3. The juxtamedullary apparatus acts as a special vascular system called the countercurrent exchanger.
The slowest category of nerve fibers are the
A. A fibers, and they conduct impulses at 10 meters per second. B. C fibers, and they conduct impulses at 1 meter per second. C. C fibers, and they conduct impulses at 100 meters per second. D. D fibers, and they conduct impulses at 0.01 meter per second. E. D fibers, and they conduct impulses at 0.1 meter per second.