Which statement is true of antibody IgE?
A) IgE is mainly found in secretions such as tears and saliva.
B) IgE is passed from mother to fetus during pregnancy.
C) IgE is the most abundant antibody in blood plasma.
D) IgE can fix complement.
E) IgE is involved in allergies.
E
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The rearrangement of connections at synapses, which occurs throughout life, is termed
A) synchronicity. B) plasticity. C) senility. D) elasticity. E) intelligence.
The most medial structure of the ankle and foot is the
A) medial malleolus. B) tendon of extensor hallucis longus muscle. C) tendon of tibialis posterior muscle. D) tendon of the tibialis anterior muscle. E) base of the first metatarsal.
In the parasympathetic branch of the nervous system, which activity does acetylcholine NOT perform?
A. Exciting skeletal muscles B. Inhibiting cardiac muscle activity C. Blocking smooth muscle activity D. Stimulating emotion and memory
In hypocalcemia,
A. PTH production is reduced. B. blood Ca2+ levels are increased. C. neuromuscular excitability decreases. D. neuromuscular excitability increases. E. depolarization is prevented.