Spinal nerve is a type of _________ .

mixed nerve

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motor neuron

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sensory neuron

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associated neuron

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Solution

The correct option is A mixed nerve
A spinal nerve is a mixed nerve having both sensory and motor neurons or afferent and efferent neurons and thus conduct both incoming sensory information and outgoing muscle commands in the same bundle. In humans, there are 31 pairs of spinal nerves, one on each side of the vertebral column.

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Similar questions

One of the following gives the correct sequence of the components in a reflex arc. This is :

(a) Receptors $\to$ Muscle $\to$ Sensory neuron $\to$ Motor neuron $\to$ Spinal cord

(b) Receptors $\to$ Motor neuron $\to$ Spinal cord $\to$ Sensory neuron $\to$ Muscle

(d) Receptors $\to$ Sensory neuron $\to$ Spinal cord $\to$ Motor neuron $\to$ Muscle

The sequence of the components of a reflex arc is

$R e c e p t o r s \to S p i n a l c o r d \to S e n s o r y n e u r o n \to M o t o r n e u r o n \to M u s c l e s$

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