Asked by Keredin Muktar on Jun 22, 2024
Verified
The cross-sectional view of the spinal cord reveals white matter on the
A) inside, gray matter on the outside, and a dorsal motor root.
B) outside, gray matter on the inside, and a ventral motor root.
C) inside, gray matter on the outside, and a dorsal sensory root.
D) outside, gray matter on the inside, and a ventral sensory root.
Cross-Sectional View
Provides a view of an object as if it were sliced perpendicularly to show its internal structure.
White Matter
Brain and spinal cord tissue consisting mainly of myelinated nerve fibers that transmit signals.
Gray Matter
Regions of the brain and spinal cord that are primarily made up of neuronal cell bodies, dendrites, and unmyelinated axons, involved in muscle control and sensory perception.
- Explain the organization of white and gray matter in the spinal cord and the implications for nerve transmission.
Verified Answer
RZ
Rachel ZachariahJun 26, 2024
Final Answer :
B
Explanation :
The spinal cord's cross-sectional view shows white matter on the outside, which contains myelinated axons, and gray matter on the inside, which consists of neuron cell bodies, dendrites, and unmyelinated axons. The ventral roots contain motor neurons that send signals from the spinal cord to the muscles.
Learning Objectives
- Explain the organization of white and gray matter in the spinal cord and the implications for nerve transmission.