3. Gray matter differs from white matter because gray matter _________ and white matter ______.A. is in the PNS, is in the CNSB. is part of the sympathetic nervous system, is part of the parasympathetic nervous systemC. contains neuronal cell bodies, contains axonsD. contains neurons, contains gliaE. is in the spinal cord, is in the brain
Question
- Gray matter differs from white matter because gray matter _________ and white matter ______.A. is in the PNS, is in the CNSB. is part of the sympathetic nervous system, is part of the parasympathetic nervous systemC. contains neuronal cell bodies, contains axonsD. contains neurons, contains gliaE. is in the spinal cord, is in the brain
Solution
The correct answer is C. Gray matter contains neuronal cell bodies, and white matter contains axons.
Here's a step-by-step explanation:
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Gray matter: This is a major component of the central nervous system, consisting of neuronal cell bodies, neuropil (dendrites and unmyelinated axons), glial cells (astrocytes and oligodendrocytes), and capillaries.
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White matter: This is composed of bundles of myelinated axons, which connect various gray matter areas of the brain to each other, and carry nerve impulses between neurons. The white matter is white because of the fatty substance (myelin) that surrounds the nerve fibers (axons). This myelin is found in almost all long-distance axons and acts as an electrical insulation.
So, gray matter contains the cell bodies of the neurons, while white matter contains the axons that connect these cells.
Similar Questions
T/F About grey matter: Question 2Answer a. · Contains both axon and dendrites b. · Contains Myeline sheath and Schwann cells c. · Only contain axons d. · Contain cell bodies and nuclei
Identify the statement that best differentiates gray matter and white matter.Multiple ChoiceGray matter consists of cell bodies and dendrites, whereas white matter consists mostly of myelinated axons.Gray matter consists axon bundles, whereas white matter consists of clusters of cell bodies and dendrites.Gray matter consists of neuron cell bodies, dendrites, and axons, whereas white matter is mostly composed of glial cells.
Neuron cell bodies are located in the _________blank matter, and myelinated axons are located in the _________blank matter.Multiple Choicegray; whitewhite; whitewhite; graygray; gray
Check all of the components of gray matter in the CNS and PNS.Check All That ApplyBundles of axonsBundles of axonsCerebral cortexCerebral cortexConduction pathwaysConduction pathwaysGangliaGangliaNerve tractsNerve tractsNuclei Nuclei
In the spinal cordThe spinal nerves contain sensory and association nervesThe gray matter is internal to the white matterCell bodies are located in tractsThe white matter is internal to the gray matter
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