Reflex Action and Reflex Arc Video 4

What is Reflex Action?
Reflex is an involuntary and sudden response to stimuli. It happens to be an integral component of the famed survival instinct.
The Action of Neuron
Two neurons dominate the pathway, afferent nerves (receptor) and the efferent nerves (effector or excitor).
Firstly, it begins with receptor detecting the stimulus or a sudden change in the environment, where the instinct again has a role to play. The stimulus is received from a sensory organ.
Then, the sensory neuron sends a signal to the relay neuron.
This is followed with the relay neuron sending the signal to the motor neuron.
Further, the motor neuron sends a signal to the effector.
The effector produces an instantaneous response, for example, pulling away of the hand or a knee-jerk reaction.
Reflex arc : The pathway of reflex action

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bicep and tricep reflexes ma to monosynaptic reflexes work krygy wo ksy mechanism start hoga ? or gross flexor ma polysnaptic reflexes work krtu hn dono ka function same ise mechanism se hoga

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Efferent pathway

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The pathway from cns to effector is called

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Sir, what is the speed of reflex action in in human body

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Sensory (or afferent) neurons: send information from sensory receptors (e.g., in skin, eyes, nose, tongue, ears) TOWARD the central nervous system. Motor (or efferent) neurons: send information AWAY from the central nervous system to muscles or glands. jb sensiry receotor towards the central nervous system send krty hn infirmation to central nervous system divuded brain and spinal cord they both r the part if the central nervous system to yahn spinsl cord se passhongy mtlb bat samehoe qk they rpart if central nervous system

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