What is the role of the brain in reflex action?
Answers
Answer:
Reflex actions are sudden involuntary responses which does not involve thinking. For example, when we touch a hot object, we withdraw our hand immediately without thinking. The sensory nerves that detect the heat are connected to the nerves that move the muscles of the hand. Such a connection of detecting the signal from the nerves and responding to it quickly is known as reflex arc. Reflex arcs are formed in the spinal cord and the information reaches the brain and brain responses to it.
Explanation:
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Reflex action is not the function of only spinal cord because spinal cord is made of ascending nerve fibres carrying informations to the brain and also the descending nerve fibres bringing informations from the brain. Reflexes under the control of brain are called cerebral reflexes .