Question: The ____ nerve, which arises in the cervical plexus, innervates the diaphragm.
Answer Choices: lesser occipital
radial
sciatic
phrenic
ansa cervicalis
Answer: D – phrenic
Question: The spinal cord is part of the
Answer Choices: afferent nervous system.
autonomic nervous system.
central nervous system.
somatic nervous system.
peripheral nervous system.
Answer: C – central nervous system
Question: Which of the following help to protect the brain?
Answer Choices: the blood-brain barrier
the bones of the skull
the CSF
the cranial meninges
All of the answers are correct.
Answer: E – All of the answers are correct
Question: The efferent division of the peripheral nervous system innervates:
Answer Choices: smooth muscle cells
glandular cells
skeletal muscle cells
heart muscle cells
All of the answers are correct.
Answer: E – All of the answers are correct
Question: The white matter of the spinal cord is mainly
Answer Choices: myelinated and unmyelinated axons.
neuroglia.
unmyelinated axons.
Schwann cells.
nodes of Ranvier.
Answer: A – myelinated and unmyelinated axons
Question: After suffering a stroke, Mary finds that she cannot move her right arm. This would suggest that the stroke damage is in the area of the ____ lobe.
Answer Choices: right temporal
left frontal
occipital
right frontal
left temporal
Answer: B – left frontal
Question: Muscles of the neck and shoulder are innervated by spinal nerves from the ____
Answer Choices: thoracic
lumbar
cervical
coccygeal
sacral
Answer: C – cervical
Question: A patient develops a tumor of a cranial nerve that leads to difficulty in speaking from a loss of tongue movement. Which cranial nerve is affected?
Answer Choices: vagus
trigeminal
spinal accessory
hypoglossal
glossopharyngeal
Answer: D – hypoglossal
Question: Cerebrospinal fluid flows within the
Answer Choices: arachnoid mater.
dura mater.
filum terminale.
pia mater.
subarachnoid space.
Answer: E – subarachnoid space
Question: You suspect your friend has damage to cranial nerve I when he is unable to
Answer Choices: nod his head.
hear your voice.
smell his food.
blink his eyes.
smile.
Answer: C – smell his food
Question: Spinal nerves are
Answer Choices: involuntary.
purely motor.
interneuronal.
purely sensory.
both sensory and motor.
Answer: E – both sensory and motor
Question: The ____ of each spinal nerve innervates the skin and muscles of the back.
Answer Choices: dermatome
ventral ramus
white ramus communicantes
gray ramus communicantes
dorsal ramus
Answer: E – dorsal ramus
Question: The third and fourth ventricles are linked by a slender canal designated as the
Answer Choices: cerebral aqueduct.
interventricular foramina.
pontine canal.
tentorium cerebelli.
central canal.
Answer: A – cerebral aqueduct
Question: The ____ provides the principal link between the nervous and endocrine systems.
Answer Choices: medulla oblongata
cerebellum
cerebrum
hypothalamus
pons
Answer: D – hypothalamus
Question: The layer of connective tissue that surrounds a fascicle within a peripheral nerve is the
Answer Choices: endosteum.
epineurium.
perineurium.
endoneurium.
epimysium.
Answer: C – perineurium
Question: The ____ nervous system is composed of the brain and spinal cord.
Answer Choices: autonomic
efferent
peripheral
afferent
central
Answer: E – central
Question: The anterior horns of the spinal cord contain mainly
Answer Choices: autonomic motor nuclei.
sensory nuclei.
nerve tracts.
sympathetic nuclei.
somatic motor nuclei.
Answer: E – somatic motor nuclei