Module 7.1: Nervous Tissue

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What statement best describes the resting state of a neuron? A. neurons are polarized with more sodium ions outside the cell and more potassium ions inside the cell B. neurons are depolarizing and generating an action potential C. neurons are restoring the ionic conditions utilizing the sodium-potassium pumps D. neurons are propagating the action potential

A

Saltatory conduction os made possible by _________. A. large nerve fibers B. the myelin sheath C. biphasic impulses D. erratic transmission of nerve impulses

B

Schwann cells are functionally similar to ______. A. microglia B. olgiodendrocytes C. ependymal cells D. astrocytes

B

The neuron cannot respond to a second stimulus, no matter how strong. A. depolarization B. repolarization C. action potential D. relative refractory period E. absolute refractory period

E

What best describes bipolar neurons? A. bipolar neurons are often found in ganglia B. bipolar neurons are called neuroglia C. bipolar neurons are more abundant in adults than in children D. bipolar neurons are motor neurons E. bipolar neurons are found in special sense organs, such as the eye and nose

E

Ganglia are connections of _________.

cell bodies


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