Multiple Choice
In the knee-jerk reflex,
A) a muscle stretch receptor is activated by a spinal cord motor neuron.
B) the motor neuron releases acetylcholine to stimulate the sensory neuron.
C) the stimulus activates a sensory neuron with a cell body in the ventral horn of the spinal cord.
D) there are two synapses from stimulation to muscle contraction.
Correct Answer:
Verified
Correct Answer:
Verified
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