In a reflex action, the spinal cord along with the brain stem is responsible for the reflex movements. Best and Taylor defined reflex action “simplest form of irritability associated with the nervous system is reflex actions or a reflex reaction is an immediate involuntary response to a stimulus.” The reflex actions are involuntary actions because these are not under the conscious control of the brain.

It is the major point that explains the importance of reflex action.
What is Reflex Action? The …

They are hereditary and are a common feature of It is an involuntary reaction of the body to a stimulus. The response is innate and need not to be learned. It follows this general sequence and does not involve the brain: Reflex Action. It often follows a pathway that begins at the sensory neuron stimulated by a stimulus and …

The word reflex (from Latin reflexus, “reflection”) was introduced into biology by a 19th-century English neurologist, Marshall Hall, who fashioned the word because he thought of the muscles as reflecting a stimulus much as a wall reflects a ball thrown against it. A reflex action is a way for the body to automatically and rapidly respond to a stimulus to minimise any further damage to the body. By reflex, Hall meant the automatic response of a muscle or several muscles to a stimulus that excites an afferent nerve. Pulling our hands away immediately after touching a hot or cold object is a classic example of a reflex action.

Definition noun, plural: reflexes (physiology) An innate, immediate involuntary action to a stimulus without prior conscious thought Supplement In physiology, a reflex is a response or a reaction to a stimulus. CNS controls reflex actions. 2. Reflex action is a sudden and involuntary response to stimuli.
Reflex action is an involuntary response of effectors to the stimulus and it helps us in protecting us from any sudden stimulus which may harm us and thus takes care of the survival of an organism. Many reflexes of placental mammals appear to be innate. Best and Tailor defined reflex action as “A quick, automatic involuntary and often unconscious action brought when the receptor are stimulated by external or internal stimuli”.Example- hammering by hand at the site of mosquito bite.

The whole mechanism of reflex action occurs in such a fashion that there is no conscious control of the brain.Stimulation occurs through the peripheral nervous system and the response to this peripheral nerve stimulation is involuntary. It helps organisms to quickly adapt to an adverse circumstance that could have the potential to cause bodily harm or even death. Briefly state the event that proceeds a stimulus in organisms.


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