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Nervous System Quiz 945 (20 MCQs)

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1. The brain is cushioned by three connective tissue membranes collectively called
2. The type of nerves that carry impulses to from the CNS to muscles and glands
3. Which part of the nerve cell receives stimuli?
4. Identify the neuroglia described:They perform phagocytosis and provide structural support
5. The small intestine is lined with villi which are responsible for
6. What is labeled P?
7. "Fight or flight" best describes the functions of the
8. Surrounds the axons for insulation
9. What part of the eye is #1 pointing to?
10. The part of the brain at the back of the skull that coordinates muscles, voluntary movements posture, and balance.
11. A cell in the nervous system is called a
12. This is the groove that separates the frontal and temporal lobes of the cerebrum.
13. Shield eyes from overhead light
14. You are walking barefoot in your yard. You feel the grass on your toes and small stones and twigs under your feet. You feel them because of these nerve cells.
15. Deep tendon reflexes are elicited by tapping on a tendon, which stimulates:
16. The colored portion of the eye with an opening in the center called a pupil is the?
17. During the falling action potential (repolarization) and hyperpolarization, what channels are open?
18. What are the chemicals that move the action potential from one neuron to the next?
19. To say that stimulation of smooth muscle $\rightarrow$ constriction and inhibition of smooth muscle $\rightarrow$ dilation is a bit of a simplification for several reasons:1) It depends on where the smooth muscle is located, 2) Some smooth muscle doesn't line a tract and 3) We need to know more about ligands, receptors, and signal transduction pathways to make a determination as to the effect of stimulation/inhibition on a smooth muscle fiber
20. The orders from the central nervous system produce:
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