Using Figure 12.3, match the following:
1) Site of efferent soma.
2) Site of axons and afferent neurons.
3) Site of sensory soma.
4) Gray commissure.
5) Horn usually containing interneurons.
6) Site containing central canal.
7) Multipolar neurons are common here.
1) C
2) B
3) E
4) A
5) B
6) A
7) C
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Synthesis of neuropeptides differs from that of other neurotransmitters because it
A. takes place on ribosomes in the postsynaptic cell's membrane. B. takes place in the cell bodies of neurons. C. uses amino acids as precursor molecules. D. takes place in the axon terminals of neurons. E. only takes place at synapses outside the central nervous system.
Which muscles enable you to extend your neck?
A) splenius capitis and spinalis cervicis B) spinalis cervicis and longus capitis C) mutifidus and quadratus lumborum D) longissimus capitis and longus colli E) iliocostalis lumborum and longissimus cervicis
When production of sex hormones increases at puberty, epiphyseal plates
A) widen. B) become narrower. C) increase slowly. D) accelerate rapidly, but mostly in thickness. E) are hardly affected.
The autonomic nervous system controls all of the following effectors except
A) glands. B) cardiac muscle. C) skeletal muscle. D) smooth muscle.