Q: Which of the following statements ACCURATELY describe spinal cord organization. α-motor neurons are organized from lateral to media such that those found towards the medial section of the spinal cord controls the distal muscles. Lumbar spinal cord enlargement is observed where neurons that innervate the legs and feet are located Neuronal cell bodies (somas) of neurons that innervate single muscles are only found in a single spinal cord segment. Muscles of the trunk are represented medially while muscles of arms and hands are represented laterally Group of answer choices 1, 2, 4 2, 3, 4 2, 4 4 only 1,2,3,4
Q: Which of the following statements ACCURATELY describe spinal cord organization. α-motor neurons are organized from lateral to media such that those found towards the medial section of the spinal cord controls the distal muscles. Lumbar spinal cord enlargement is observed where neurons that innervate the legs and feet are located Neuronal cell bodies (somas) of neurons that innervate single muscles are only found in a single spinal cord segment. Muscles of the trunk are represented medially while muscles of arms and hands are represented laterally Group of answer choices 1, 2, 4 2, 3, 4 2, 4 4 only 1,2,3,4
Chapter8: The Nervous System
Section: Chapter Questions
Problem C1CRE
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Q: Which of the following statements ACCURATELY describe spinal cord organization.
- α-motor neurons are organized from lateral to media such that those found towards the medial section of the spinal cord controls the distal muscles.
- Lumbar spinal cord enlargement is observed where neurons that innervate the legs and feet are located
- Neuronal cell bodies (somas) of neurons that innervate single muscles are only found in a single spinal cord segment.
- Muscles of the trunk are represented medially while muscles of arms and hands are represented laterally
Group of answer choices
1, 2, 4
2, 3, 4
2, 4
4 only
1,2,3,4
Question:
Both upper and lower motor neurons are involved in controlling the activity of your right bicep. Where do the cell bodies of these motor neurons live?
Group of answer choices
Upper motor neuron – left motor cortex; lower motor neuron – left spinal cord
Upper motor neuron – left motor cortex; lower motor neuron – right spinal cord.
Upper motor neuron – right motor cortex; lower motor neuron – left spinal cord.
Upper motor neuron – right motor cortex; lower motor neuron – right spinal cord.
both are in the left motor cortex
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