NEET BIOLOGY

Detailed explanation-1: -Spinal cord reflexes are simple behaviors produced by central nervous system (CNS) pathways that lie entirely within the spinal cord. The sensory afferent fibers that evoke these reflexes enter the spinal cord and activate spinal motor neurons directly or through a chain of one or more spinal interneurons.

Detailed explanation-2: -Spinal cord reflexes are simple behaviors produced by CNS pathways within the spinal cord. The spinal stretch reflex (SSR), also called the knee jerk or M1, is the initial response to sudden muscle stretch.

Detailed explanation-3: -A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the brain.

Detailed explanation-4: -Receptors are stimulated at the commencement of a reflex arc. They then deliver impulses to your spinal cord via a sensory neuron, which is then passed on to a motor neuron. Involuntary and practically immediate movement in reaction to a stimulus is known as reflex action.