...... is not involved in the knee-jerk refle | vedclass

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(C) The knee-jerk reflex is a classic example of a monosynaptic reflex arc. $1$. It involves a sensory receptor (muscle spindle) that detects the stre

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(C) The knee-jerk reflex is a classic example of a monosynaptic reflex arc. $1$. It involves a sensory receptor (muscle spindle) that detects the stretch. $2$. The sensory neuron carries the impulse to the spinal cord. $3$. In the spinal cord,the sensory neuron synapses directly with a motor neuron (there are no interneurons involved in this specific monosynaptic pathway). $4$. The motor neuron then carries the impulse to the effector muscle,causing contraction. $5$. The brain is not involved in the processing of this reflex,as it is an involuntary response mediated entirely by the spinal cord.

...... is not involved in the knee-jerk reflex.

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