Question : Assertion:Reflex arc comprises of at least one afferent neuron, one efferent neuron and a part of PNS. Reason:The efferent neuron receivers signal from a sensory organ and transmits the impulse via a ventral nerve root into the PNS.

Question : Assertion:Reflex arc comprises of at least one afferent neu

1.	Question : Assertion:Reflex arc comprises of at least one afferent neuron, one efferent neuron and a part of PNS. Reason:The efferent neuron receivers signal from a sensory organ and transmits the impulse via a ventral nerve root into the PNS.
Answer» If both ASSERTION and reason are true and reason is the correct explanation of assertion. If both assertion and reason are true but reason is not the correct explanation of assertion. If assertion is true but reason is false. If both assertion and reason are false. Solution :The REFLEX pathway compries at lesast one afferenty neuorn (recptor) and one (efferent or excitor) neuron APPROPRIATELY arranged in a series. The afferent neuron recevies signal from a sensory organ and transmits the impulse via a dorsal nerve root into the CNS (at the level of spinal CORD). The efferent neuron then carries signals form CNS to the effector. The stimulus and response thus forms a reflex arc.