Q&A Reflex arc- Nervous Structures Flashcards Preview

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Flashcards in Q&A Reflex arc- Nervous Structures Deck (6)
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1

List the components of the reflex arch

Stimulus, Receptor, Sensory (afferent) neuron, Interneuron or association neuron, Motor (efferent) neuron or lower motor neuron (LMN), Effector (target) organ: the muscle or gland innervated by a motor neuron

2

What aggregates of nerve cell bodies in the CNS? PNS?

CNS: nucleus; PNS: ganglion

3

What is gray matter?

Part of the nervous tissue consisting of the neuronal cell bodies

4

What is white matter

Part of the nervous tissue consisting mainly of myelinated nerve fibers/axons

5

What is a nerve

A bundle of nerve processes outside the CNS

6

What are nerve tracts or fasciculi

Nerve fiber bundles of common origin in the brain and spinal cord