Question

explain why reflex arc's are an automatic behavior ?

Answer 1

Answer:

During the reflex action, the nerve impulse travels from the receptor to the effector describing a complete nerve path and this pathway is known as Reflex Arc.                          

Explanation:

• Reflex action is a rapid, autonomic action carried out without the intervention of the will of the animal.

• Marshall Hall first observed such an action in 1833.

• A simple reflex arc (monosynaptic) involves a single sensory or afferent neuron, an interneuron present within the spinal cord and a single motor or efferent neuron.
• The afferent is associated with the receptors (like skin) and the efferent is associated with the effectors (muscles or organs).
• The improvement distinguished by the receptors passes into the sensory or afferent neuron.

• These impulses enter the spinal cord through the dorsal root and initiate impulses in the interneuron or association neurons.

• From the spinal cord, the impulse is carried through the ventral root and travels along the afferent or motor nerve fibres to reach the effector organ.

• Reflexes are those automatic responses to sudden, harmful stimuli around us.
• These are executed by unique pathways including tangible, sensory and motor neuron. These reflex arcs occur mostly in the spinal cord (bypassing the brain).
• They relieve the brain from unnecessary work by taking care of minor daily activities of the body.
• Since these actions are faster than typical movements and don't require the involvement of conscious control maintained by the brain, the reflex arcs are an automatic (involuntary) behaviour.

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Answer 2

In the process of reflex action, the nerve impulse will travel from the receptor to the effector This action of nerve which describes the complete nerve path and this pathway is known as Reflex Arc.  

Explanation:                    

• Reflex action is a rapid, autonomic action carried out without the intervention of the will of the animal.
• Marshall Hall first observed such an action in 1833.
• A simple reflex arc monosynaptic involves a single sensory or afferent neuron, an interneuron present within the spinal cord and a single motor or efferent neuron.
• The afferent is associated with the receptors (like skin) and the efferent is associated with the effectors (muscles or organs).
• The improvement distinguished by the receptors passes into the sensory or afferent neuron.
• These impulses enter the spinal cord through the dorsal root and initiate impulses in the interneuron or association neurons.
• From the spinal cord, the impulse is carried through the ventral root and travels along the afferent or motor nerve fibres to reach the effector organ.
• Reflexes are those automatic responses to sudden, harmful stimuli around us.
• These are executed by unique pathways including tangible, sensory and motor neuron. These reflex arcs occur mostly in the spinal cord (bypassing the brain).
• They relieve the brain from unnecessary work by taking care of minor daily activities of the body.
• Since these actions are faster than typical movements and don't require the involvement of conscious control maintained by the brain, the reflex arcs are an automatic (involuntary) behaviour.

#SPJ2