Fill in the blanks according to the process of reflex action.
1. The reflex pathway comprises at least one .......neuron (receptor) and one .......(effector or excitor) neuron appropriately arranged in a series
2. The .........neuron receives signal from a sensory organ and transmit the impulse via a ...c... nerve root into the CNS (at the level of spinal cord). ltBrgt 3. The ...b... neuron then carriers signals from CNS to the effector.
4. The stimulus and response thus form a reflex ...d...
A. a-afferent, b-efferent, c-dorsal, d-arc
B. a-afferent, b-efferent, c-ventral, d-arc
C. a-efferent, b-afferent, c-dorsal, d-pathway
D. a-efferent, b-afferent, c-ventral, d-action
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Correct Answer - A
The reflex pathway comprises at least one afferent neuron (receptor) and one efferent (efferent or excitor) neuron appropriately arranged in a series.
The afferent neuron receives signal from a sensory organ and transmit the impulse via a dorsal nerve root into the CNS (at the level of spinal cord).
The efferent neuron then carries signals from CNS to the effector.
The stimulus and response thus form a reflex are.
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