13.1 The Spinal Cord

1			The main functions of the spinal cord include all but which of the following?
			A)	conduction
			B)	locomotion
			C)	reflexes
			D)	synthesis of sensory input
2			The regions of the spinal cord include all of the following regions except ________________.
			A)	medullary
			B)	cervical
			C)	thoracic
			D)	lumbar
3			Which of the following contains the most myelin?
			A)	gray matter
			B)	white matter
			C)	fasciculi of the gray matter
4			Light touch, tickle, itch, temperature, pain, and pressure are stimuli collected by which spinal tract?
			A)	gracile fasciculus
			B)	lateral corticospinal
			C)	ventral spinocerebellar
			D)	spinothalamic
5			Balance and posture, regulation of awareness of pain are all signals of which motor spinal tract?
			A)	ventral spinocerebellar
			B)	dorsal spinocerebellar
			C)	ventral corticospinal
			D)	lateral reticulospinal

13.2 The Spinal Nerves

6			This segment of the spinal cord has 8 spinal nerves.
			A)	cervical
			B)	thoracic
			C)	lumbar
			D)	sacral
7			A nerve is actually composed of many nerve fibers (axons) bound together in a fascicle which is wrapped in ________________.
			A)	endoneurium
			B)	perineurium
			C)	epineurium
			D)	ganglia
8			Which of the following carries signals from receptors to the CNS?
			A)	afferent fibers
			B)	efferent fibers
			C)	somatic fibers
			D)	visceral fibers

13.3 Somatic Reflexes

9			An example of a polysynaptic reflex arc is a _______ reflex.
			A)	reciprocal
			B)	flexor
			C)	stretch reflex
			D)	myotatic
10			Muscle spindles are a type of proprioceptors that respond to stretching of the
			A)	tendon.
			B)	ligament.
			C)	muscle fibers.
			D)	nerve.