Which of the following is not true of the patellar reflex?
a. it is processed in the hypothalamus.
b. it involves two neurons.
c. it is activated by a stretch receptor.
d. it controls a single reflex.
e. it includes a motor and a sensory neuron.

The correct answer is letter B.

Explanation: The Patellar Reflex is a monosynaptic reflex arc.

Interneuron does not make part of the pathway to contraction of the muscle. The sensory neuron synapses from a motor neuron in the spinal cord.

An effector is a muscle that receives the impulse from the motor neuron. In somatic reflexes, the effector is skeletal muscle. In autonomic (visceral) reflexes, the effector is smooth or cardiac muscle, or a gland.

a) which ethnic groups live in this community?

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