Question

A reflex arc in man is best described as the movement of stimuli from

• A. receptor cell, sensory neuron, relaying neuron, effector's muscles
• B. receptor cell, efferent nerve, relaying neuron, muscles of the body
• C. receptor cell, spinal cord, motor neuron, relaying neuron
• D. receptor cell, synapse, motor neuron, relaying neuron

Answer 1

The correct option is A

receptor cell, sensory neuron, relaying neuron, effector's muscles

The correct option is A.

Explanation of correct option:

1. In a reflex arc, the receptor receives the stimulus, creates the sensory nerve impulse, and sends it to the nerve center for processing.
2. The motor neuron, also known as a relay neuron, is responsible for transmitting the motor impulse from the nerve center to the effector organ or muscles.
3. The effector responds appropriately to the stimuli.

Final answer: A reflex arc in man is best described as the movement of stimuli from receptor cells, sensory neurons, relaying neurons, and effector's muscles.