Refer to the Figure Showing the Knee-Jerk Reflex

question 17

Multiple Choice

Refer to the figure showing the knee-jerk reflex. What is happening at point 1?

• A) The motor neuron is bringing sensory information to the dorsal root in the spinal cord.
• B) Inhibition from the afferent neuron is being transmitted to the interneuron and efferent neuron.
• C) The efferent neuron is firing action potentials that are transmitted to the afferent neuron.
• D) Action potentials fired by the stretch receptors are being transmitted to neurons in the spinal cord.
• E) The sensory neuron is transmitting to the spinal cord information that will be transmitted to the motor neurons in the brain.

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