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The sensory ganglion concerned with spinal reflex is located in
A. Dorsal root of spinal nerve
B. Ventral root of spinal nerve
C. Both A and B.
D. None of the above.

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Last updated date: 22nd Mar 2024
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MVSAT 2024
Answer
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Hint: Dorsal root of the spinal cord contains cell bodies of sensory nerve fibers. Sensory information can be transmitted by the dorsal root.

Complete answer: The dorsal root of the spinal nerve is one of two roots that emerge out from the spinal cord. After emerging directly from the spinal cord, it travels towards the dorsal root ganglion.
1. A spinal nerve is then formed by a combination of the nerve fibers and the ventral root.
2. Sensory information can be transmitted by the dorsal root.
3. It forms the afferent sensory root of a spinal nerve.
4. The pseudo-unipolar cell bodies of the nerve fibers are located in the dorsal root ganglia.
5. These travel from ganglia through the root and finally into the spinal cord.
6. The axons of neurons that are part of posterior root ganglion are known as afferents.
7. The posterior root ganglia lie along the spine i.e. vertebral column.
8. The sensory ganglion concerned with spinal reflex is located in the dorsal root of the spinal nerve.

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Additional information: The brain and spinal cord are your body's central nervous system. The brain is the command center for your body system, and the spinal cord is the passage for messages sent by the brain to the body and from the body to the brain.

So, the correct answer is A. Dorsal root of the spinal nerve.

Note: The ventral root is made up of the motor neurons. Both the sensory and motor neurons enter and leave the spinal cord respectively via the intervertebral foramen.
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