問題一覧
1
The fasciculus cuneatus and fasciculus gracilis compose which of the following?
posterior funiculi
2
Which of the following cranial nerves carry parasympathetic preganglionic nerve axons?
CN V (trigeminal)
3
Which statement accurately describes the receptor activity when you rotate your head?
The cupula moves and bends the stereocilia and kinocilium, resulting in the generation of a nerve impulse.
4
Baroreceptors are a class of mechanoreceptor that respond to what type of sensation?
changes in pressure
5
Which cranial nerve has three divisions (ophthalmic, maxillary, and mandibular)?
trigeminal (CN V)
6
What is found in the epidural space?
fat, connective tissue, and blood vessels
7
Which type of brain waves are prevalent when an individual is in deep sleep?
theta and delta
8
Which photoreceptors perceive color and sharp vision?
cones
9
An individual was in a car accident and now has anesthesia from his lateral right arm through his right thumb. What structure may be affected?
spinal nerve C6
10
Postganglionic axons from the celiac ganglia innervate which of the following?
stomach
11
Which cerebral lobe is located immediately posterior to the central sulcus and superior to the lateral sulcus?
parietal lobe
12
Which of these cells transmits, transfers, and processes a nerve impulse?
neuron
13
Which structure provides motor innervation to the deep back muscles and receives sensory information from the skin of the back?
posterior ramus
14
Lower limbs are supplied by neurons from which portion of the spinal cord?
lumbosacral enlargement
15
Which of the following statements is true about the blood-brain barrier?
It is deficient in the regions of the choroid plexus, hypothalamus, and pineal gland.
16
The visual reflex center is housed within which structure?
superior colliculus
17
Which autonomic nerve plexus innervates the pelvic organs?
hypogastric plexus
18
Which type of white matter tracts connect corresponding lobes of the left and right cerebral hemispheres?
commisural tracts
19
Which sensory structure has stereocilia of hair cells embedded in a gelatinous structure called a cupula?
semicircular duct
20
What are the sympathetic ganglia called that lie anterior to the vertebral column and the aorta?
prevertebral
21
Which plexus does the radial nerve originate from?
brachial
22
Which of the following is not a part of the CNS?
neurolemmocyte
23
Motor and sensory pathways share many characteristics. Of the following, which is seen only with sensory pathways?
The neurons utilized are called primary, secondary, and tertiary neurons.
24
What is the name for the region of the spinal cord where axons cross from one side to the other?
gray commissure
25
Pyramidal cell axons project through corticospinal tracts and synapse at which structures?
motor neurons in the anterior horns of the spinal cord
26
Which of these is the least likely to affect information transfer from STM (short-term memory) to LTM (long-term memory)?
auditory association cortex
27
Which of the following is not a function of the sympathetic division of the ANS?
increases digestive system motility and activity
28
After a severe blow to the head, a patient suddenly does not experience sensations of hunger and seems unable to tell if he is dehydrated. The attending physician should suspect damage to or a lesion within what general region of the brain?
hypothalamus
29
Which statement about a splanchnic nerve in the sympathetic division of the ANS is true?
It is formed by preganglionic axons that travel to prevertebral ganglia.
30
Which structure or cell is responsible for increasing the propagation rate of a nerve impulse?
neurolemmocyte
31
Which of the following describes a sympathetic postganglionic axon?
long, unmyelinated axon
32
Which neurons are located only within the CNS?
interneurons
33
Because tastes must be dissolved in saliva before they are detected, gustatory cells are best classified as which of the following?
chemoreceptors
34
Which structures are the isolated, innermost gray matter areas near the base of the cerebrum, inferior to the lateral ventricles?
cerebral nuclei
35
Which type of neural circuit is repeatedly stimulated by nerve impulse feedback?
reverberating circuit
36
Where are some parasympathetic preganglionic neuron cell bodies housed?
sacral region of the spinal cord
37
Which glial cells help produce CSF in the CNS?
ependymal cells
38
The right hemisphere tends to be dominant for which functions?
musical and artistic skills
39
Which statement is true about the cochlear duct?
It contains hair cells that convert sound waves into nerve impulses.
40
What is the tapered inferior end of the spinal cord called?
conus medullaris
41
A mature neuron typically cannot undergo mitosis because it does not have which structure(s)?
centrioles
42
The anterior root of a spinal nerve contains what structures?
axons of motor neurons only
43
Which structures are descending motor tracts on the anterolateral surface of the midbrain?
cerebral peduncles
44
Which structures make up the majority of the white matter of the spinal cord?
myelinated axons
45
Identify the meningeal layer immediately deep to the subdural space.
arachnoid mater
46
Which of these are not part of an indirect motor pathway?
corticobulbar tracts
47
Where are tertiary neurons located?
extending between the thalamus horn and the primary somatosensory cortex
48
The subdivision of the brain that does not initiate somatic motor movements, but instead coordinates and fine-tunes those movements is which of the following?
cerebellum
49
Which nervous system function and term are correctly paired?
respond to information—effector
50
What is the correct pathway by which tears are produced, drained, and enter the nasal cavity?
lacrimal gland → lacrimal punctum → lacrimal canaliculus → lacrimal sac - nasolacrimal duct → nasal cavity
51
Which of the following best describes an epineurium?
a thick, dense irregular connective tissue layer enclosing the nerve
52
What do neural crest cells form?
autonomic ganglia
53
Which specific area of the brain may be impaired if you cannot tell the difference between a smooth and a rough surface, using your hands only?
precentral gyrus
54
Which structures facilitate interactions between presynaptic and postsynaptic membranes in an electrical synapse?
gap junctions
55
What is the only sensation that can reach the cerebral cortex without first processing through the synapses in the thalamus?
olfaction
56
Which motor tracts conduct impulses to regulate the skilled movements of the upper and lower limbs?
corticospinal tracts
57
Which type of cutaneous receptor consists of unencapsulated, terminal branches of dendrites?
free nerve endings
58
Which neurotransmitter is used by all parasympathetic division synapses?
acetylcholine
59
Which of the following spinal cord tracts does not transmit sensation from the lower limb?
lateral corticospinal tract
60
What is the arrangement of tunics in the eye, from the center of the eye to the periphery?
retina, vascular, fibrous