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Which part of the body is responsible for initiating a reflex action?

 

Option: 1

The brain


Option: 2

The spinal cord


Option: 3

The heart


Option: 4

The lungs


Answers (1)

best_answer

The spinal cord is responsible for initiating a reflex action. When a stimulus is detected by a sensory neuron, the information travels to the spinal cord, where an interneuron relays the signal to a motor neuron. The motor neuron then sends a signal to the muscle, causing a rapid, involuntary response. This process occurs without conscious thought or decision-making and allows for quick reactions to potentially harmful stimuli. While the brain can modulate reflex actions, the initial initiation of the reflex arc occurs in the spinal cord.

Option 2 is the correct answer. 

Posted by

Sanket Gandhi

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