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A) are capable of receiving a stimulus and yielding a response.
B) are the basic structural units of the nervous system.
C) occur primarily in the cerebral cortex of the brain.
D) involve inhibitory neurons.
E) do not involve the spinal cord.
Put the following parts of a reflex arc in the correct order beginning with the sensory receptor.
1. motor neuron
4. sensory neuron
5. sensory receptor
A) 5, 1, 2, 3, 4
B) 5, 3, 2, 4, 1
C) 5, 4, 3, 2, 1
D) 5, 2, 3, 4, 1
E) 5, 4, 2, 1, 3
If a withdrawal reflex is initiated in one leg, the crossed extensor reflex causes
A) a withdrawal reflex in the opposite leg.
B) inhibition of abduction in the opposite leg.
C) extension of the opposite leg.
D) both legs to extend.
E) flexion of both legs.
Ventral rami of some spinal nerves join with each other to form a
Improper use of crutches could cause compression of the _____ nerve.
An injury to the wrist that results in edema in the carpal tunnel would compress the
A) axillary nerve.
B) radial nerve.
C) musculocutaneous nerve.
D) ulnar nerve.
E) median nerve.
When someone taps you on your shoulder, they stimulate the ____ nerve.
The ischiadic (sciatic) nerve is composed of the
A) femoral nerve and the tibial nerve.
B) tibial nerve and the common fibular nerve.
C) femoral nerve and the obturator nerve.
D) common fibular nerve and the pudendal nerve.
E) superior gluteal and inferior gluteal
Which nerve is involved when a dancer points their toes?
E) common fibular (peroneal)
When a person sits on a hard surface for a period of time, his foot or leg may "go to sleep." This sensation is the result of compressing the _____ nerve.
B) ischiadic (sciatic)
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