10. Which statement is NOT true?
A) Sleep requirements decline from infancy to early adulthood,
level off, then decline again in old age.
B) Half of infant sleep is composed of REM sleep.
C) Ten-year-olds are in REM sleep about 1.5-2 hours per night.
D) Stage 4 sleep increases in old age. Correct Answers D)
Stage 4 sleep increases in old age.
A muscle in which the fibers are arranged at an angle to a
central longitudinal tendon has a ________ arrangement.
A) circular
B) longitudinal
C) pennate
D) parallel Correct Answers C) pennate
A muscle that assists an agonist by causing a like movement or
by stabilizing a joint over which an agonist acts is
A) antagonist
B) prime mover
C) synergist
D) agonist Correct Answers C) synergist
A number of brain structures are listed below. Determine if an
area is primarily grey matter or mostly white matter.
1) cerebral cortex
,2) corpus callosum and corona radiate
3) red nucleus
4) medial & lateral nuclear groups
5) medial lemniscal tract
6) cranial nerve nuclei
7) spinothalamic tract
8) fornix
9) cingulate precentral gyri Correct Answers White Matter
2) corpus callosum and corona radiate
5) medial lemniscal tract
7) spinothalamic tract
8) fornix
Grey Matter
1) cerebral cortex
3) red nucleus
4) medial & lateral nuclear groups
6) cranial nerve nuclei
9) cingulate precentral gyri
A pair of tweezers is a good example of a second-class lever.
A ) True
B ) False Correct Answers B ) False - A pair of tweezers is an
example of a third-class lever.
A patient has suffered a cerebral hemorrhage that has cause
dysfunction of the precentral gyrus of his right cerebral cortex.
What is the result?
A) he cannot voluntarily move his left arm or leg
,B) he feels no sensation on the left side of his body
C) he feels no sensation on the right side of his body Correct
Answers A) he cannot voluntarily move his left arm or leg
A patient who received a blow to the side of the skull exhibits
the following signs and symptoms on that side of the face: he is
unable to close his eye, and the corner of his mouth droops.
Which cranial nerve has been damaged?
A) facial
B) glossopharyngeal
C) hypoglossal
D) accessory Correct Answers A) facial
A pelvic splanchnic nerve contains
A) preganglionic sympathetic fibers
B) postganglionic sympathetic fibers
C) preganglionic parasympathetic fibers
D) postganglionic parasympathetic fibers Correct Answers C)
preganglionic parasympathetic fibers
A professor unexpectedly blew a horn in his anatomy and
physiology class. The students looked up startled. The reflexive
movement of their eyes were mediated by what?
A) cerebral cortex
B) inferior olives
C) raphe nuclei
D) nucleus gracilis Correct Answers D) nucleus gracilis
, A reflex that causes reciprocal activation of the antagonist
muscle is the
A) crossed-extensor
B) flexor
C) Golgi tendon
D) muscle stretch Correct Answers C) Golgi tendon
Aerobic exercise results in all of the following except?
A) increased cardiovascular system efficiency
B) more mitochondria in the muscle cells
C) increased size and strength of existing muscle cells
D) increased neuromuscular system coordination Correct
Answers C) increased size and strength of existing muscle cells
All of the following characterize the ANS EXCEPT
A) 2 neuron efferent chain
B) presence of nerve cell bodies in the CNS
C) presence of nerve cell bodies in the ganglia
D) innervation of skeletal muscles Correct Answers D)
innervation of skeletal muscles
An individual has just ingested a chemical that binds irreversibly
to the ACh receptors in the sarcolemma. By itself it does not
alter membrane potential, yet prevents normal neurotransmitter
binding. Ignoring the effects on any other system, the
consequence to skeletal muscle would be ________.