Choose the best answer.

1			The signals that control movement of the fingers while a person plays the piano travel down the spinal cord in
			A)	the tectospinal tracts.
			B)	the corticospinal tracts.
			C)	the spinocerebellar tracts.
			D)	the fasciculus gracilis.
2			The epidural space in the spinal column is occupied by
			A)	adipose tissue.
			B)	cerebrospinal fluid.
			C)	the dura mater.
			D)	dense irregular connective tissue.
3			What information is carried in the gracile fasciculus?
			A)	descending motor commands to limb muscles for balance and posture
			B)	sensory signals from the lower limbs and lower trunk for deep touch and proprioception
			C)	sensory signals from level T6 and up for pain, touch, and proprioception
			D)	signals for light touch, tickle, and temperature from the upper limbs
4			What role does a first-order neuron play in the passage of a sensory signal to the brain?
			A)	The first-order neuron carries the sensory signal to the thalamus.
			B)	The first-order neuron detects the stimulus and transmits a signal to the spinal cord or brain-stem.
			C)	The first-order neuron carries the signal to the sensory area of the cerebral cortex.
			D)	The soma of the first-order neuron is in the cerebral cortex and the axon terminates in the spinal cord.
5			What would you expect to be the result of an accident where a person severed the spinal cord at the level of T12?
			A)	quadriplegia
			B)	hemiplegia
			C)	paraplegia
			D)	immediate death
6			Where are upper motor neurons located?
			A)	cerebral cortex or brainstem
			B)	spinal cord
			C)	posterior horn of the spinal cord
			D)	anterior horn of the spinal cord
7			What paralytic condition is caused by a viral infection that destroys motor neurons in the brainstem and ventral horns of the spinal cord?
			A)	amyotrophic lateral sclerosis (ALS)
			B)	poliomyelitis
			C)	multiple sclerosis
			D)	rabies
8			Which is not a quality of all somatic reflexes?
			A)	They are monosynaptic.
			B)	They are quick.
			C)	They are stereotyped.
			D)	They are involuntary.
9			The central canal is a remnant of what embryonic structure?
			A)	the neural crest
			B)	the neural folds
			C)	the neural tube
			D)	the rhombencephalon
10			The dorsal horns of the spinal cord contain somas of somatic motor neurons.
			A)	True
			B)	False
11			The somas of the sensory neurons of spinal nerves are found in the dorsal horns.
			A)	True
			B)	False
12			The cervical plexus contains nerves that supply the upper limb.
			A)	True
			B)	False
13			The nerve that supplies muscles of the posterior arm and forearm is the musculocutaneous.
			A)	True
			B)	False
14			Which of the following is not an ascending tract?
			A)	cuneate fasciculus
			B)	spinothalamic
			C)	corticospinal
			D)	gracile fasciculus
15			The perineurium is a connective tissue structure that forms a sheath around an entire nerve.
			A)	True
			B)	False
16			A condition due to accumulation of glutamate in the nervous tissue fluid is meningitis.
			A)	True
			B)	False
17			A woman who is in labor during childbirth might be given anesthesia in the subarachnoid space.
			A)	True
			B)	False
18			The lateral horns of the spinal cord contains neurons of the sympathetic nervous system.
			A)	True
			B)	False
19			The phrenic nerve arises from the brachial plexus.
			A)	True
			B)	False
20			The corticospinal descending tract begins in the midbrain region and is involved in reflex responses to auditory and visual stimuli.
			A)	True
			B)	False
21			Groups of neurons in the spinal cord that coordinate the simple, repetitive, alternating movements of the lower limbs that facilitate walking are called central pattern generators.
			A)	True
			B)	False
22			The lateral and medial reticulospinal tracts control muscles of the upper and lower limb to maintain posture and balance.
			A)	True
			B)	False
23			A spinal tap involves insertion of a needle into the epidural space.
			A)	True
			B)	False
24			The sciatic nerve arises from the lumbar plexus.
			A)	True
			B)	False