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Spinal reflexes are rapid, involuntary motor responses controlled by the spinal cord. They involve simple circuits and bypass the brain for immediate action. These reflexes are crucial for quick reactions to potential threats.
Spinal reflexes are involuntary motor responses that occur independently of the brain. They involve simple circuits with sensory input synapsing onto motor neurons in the spinal cord. These reflexes are fast, with some involving only one synapse, known as monosynaptic communication.
Reflexes do not always transmit information to the brain for processing. Instead, interneurons in the spinal cord act to send a message back through motor neurons, bypassing the brain's involvement. This allows for immediate responses, such as pulling a hand from a hot object, before the brain is even aware of the situation.
With spinal reflexes, the communication stays local and can activate only ipsilateral effectors, affecting the same side of the body where the stimulus was received. This rapid and automatic process is essential for immediate reactions to potential harm or danger.
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