Where are reflex arcs primarily formed in the human body?
Spinal cord
A reflex arc is the neural pathway that produces a rapid, involuntary response to a stimulus, such as pulling the hand away from a hot object. The pathway is short: a sensory neuron carries the signal from the receptor to the spinal cord, an interneuron in the spinal cord processes it, and a motor neuron carries the command back to the muscle.
Because the signal is handled directly in the spinal cord, the response is generated before the message reaches the brain, which is what makes the action so fast. The brain is later informed of what happened but does not form the arc itself. The lungs and heart are effector organs of the respiratory and circulatory systems and have no role in forming the reflex pathway.
Hence, the answer is Spinal cord.
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The contractile protein in skeletal muscle is:
The brain region which is responsible for coordination of voluntary muscular movement posture and balance
One cardiac cycle completes in _____
The amount of air passing into and out of the lungs during each cycle of breathing is referred as:
Which structures act as wires of a telephone in the body?
