Mark the parts labelled in the following diagram

A - Receptor, B - Sensory neuron, C - Motor neuron, D - Relay neuron

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A - Central Nervous System, B - Electrical impulse, C - Sensory neuron, D - Motor neuron

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A - Central Nervous System, B - Electrical impulse, C - Sensory neuron, D - Motor neuron

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A - Neuromuscular junction, B - Cell body, C - Sensory neuron, D - Motor neuron

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Solution

The correct option is A
A - Receptor, B - Sensory neuron, C - Motor neuron, D - Relay neuron

The given figure represents a reflex arc. A, B, C and D in the figure represent the following:

A denotes the receptor for heat/pain

B denotes Sensory neuron

C denotes Motor neuron

D denotes Relay neuron

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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

\begin{matrix} Neuron & Function 1. Sensory neuron & a. Conduct impulses from CNS to effector organs. 2. Motor neuron & b. Integration in nervous system. 3. Association neuron & c. Conduct impulses from sensory organs to CNS. \end{matrix}

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