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A&PI-Ch4
Tissue the Living Fabric - Nervous Tissue
Question | Answer |
---|---|
cell of nervous system; specialized to generate and transmit electrical signals (action potentials and graded potentials) | neuron |
main component of nervous systems; brain, spinal cord, and nerves | nervous tissue |
nervous tissues __ & __ body functions | regulate; control |
typically neurons are __ cells with cytoplasmic extensions, or __ | branching; processes |
responding to stimuli is role of | dendrites |
transmitting electrical impulses over substantial distances within body, is role of | axon |
allow neurons to respond to stimuli and transmit electrical impulses over substantial distances within body | processes |
axons may be very long and __ | myelinated |
soft white somewhat fatty material that forms thick sheath about core of a nerve fiber | myelin |
balance of nervous tissue consists of carious types of __ cells | supporting |
nonconducting cells that support, insulate, and protect delicate neurons | supporting cells |