testing testing IV Flashcards

Chapter 11-15

1
Q

the large commissure that connects the right and left side of the brain is called the

A

corpus callosum

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2
Q

cerebrospinal l fluid is produced by ___ and it functions to ___.

A

choroid plexuses in the ventricles; protects the brain from blows to the skull

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3
Q

basal ganglia are located in the ___ and function to ___.

A

deep regions of the cerebral hemispheres; aid in control of motor activites

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4
Q

the part of the brain that functions to coordinate voluntary muscular movements is in the

A

cerebellum

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5
Q

the arbor vitae refer to ___.

A

cerebellar white matter

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6
Q

which brain sturcutre functions to control the autonomic nervous system and to regulate body temperatre?

A

hypothalamus

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7
Q

second-order neurons of ascending pathways that contribute to sensory perception terminate in the ___.

A

thalamus

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8
Q

mass of myelinated nerve fibers apperar

A

white

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9
Q

which of the following is not one of the three vital reflex centers of the medulla oblongata?

A

digestive center

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10
Q

the cerebrum is separated from the cerebellum by the

A

transverse fissure

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11
Q

the ___ includes the thalamus, hypothalamus, and epithalamus

A

diencephalon

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12
Q

a myelinated nerve fiber is characterized by being ___, whereas an unmyelinated nerve fiber is characterized by being ___.

A

white, composing white matter of brain and spinal cord; gray, composing gray matter of brain and spinal cord

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13
Q

which of the following is not a function of the hypothalmaus?

A

control of postural reflexes

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14
Q

the subarachnoid space whithin the meninges contains

A

cerebrospinal fluid

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15
Q

surrounds the central canal of the spinal column and holds cerebral spinal fluid

A

gray commissure

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16
Q

gray matter of the spinal cord is mostly composed of

A

interneurons

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17
Q

most cerebrospinal fluid is secreted from the choroid plexuses in the

A

lateral ventricles

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18
Q

preparing the body for “fight or flight” response is the role of the

A

sympathetic division

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19
Q

sympathetic division stimulation causes ___

A

increased blood glucose, decreased GI peristalsis, and increased heart rate and blood pressure

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20
Q

the somatic nervous system consists of nerve fibers that connect the CNS to the ___, whereas the autonomic nervous system consists of fibers that connect the ___.

A

skin and skeletal muscles; CNS to the visceral organs

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21
Q

a sensation is ___, and projection of a sensation is the ___.

A

a feeling that results from sensory stimulation; brain causing it to seem to come from the receptors being stimulated

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22
Q

if you enter a room and smell a strong odor but the odor soon seems to fade away, you have experienced

A

sensory adaptation

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23
Q

the area of skin supplied by sensory nerve fibers from a particular dorsal root is called a

A

dermatome

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24
Q

which of the following are generally adrenergic fibers?

A

sympathetic postganglionic fibers

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25
when a spinal nerve passes through the intervertebral foramen, it is
associated with the vertebrae above
26
what is it called when pain seems to be coming from another part of the body rather than the part of the body sending the sensation?
referred pain
27
over 90% of all parasympathetic fibers are derived from cranial nerve ___.
X (vagus)
28
which of the following are paired correctly?
all of these are correct (chemoreceptors- chemical changes, pain receptors- damage to tissue, thermoreceptors- change in temperature)
29
which of the following does NOT describe the ANS?
a system of motor neurons that innervates all muscle cells
30
mixed cranial nerves containing both motor and sensory fibers include all EXCEPT which of the following?
olfactory
31
control of temperature, endocrine activity, and thirst are functions associated with the ___.
hypothalamus
32
which of the following is shared by all reflexes
a reflex arc
33
which of the following is mismatched?
parasympathetic postganglionic fibers; release NE
34
general senses are generally distributed in what type of pattern throughout the body?
widely distributed throughout the body
35
pain receptors
are generally stimulated by factors that can cause tissue damage
36
which of the folowing lists the part of a reflex arc in correct sequence?
receptor, sensory neuron, interneuron, motor neuron, effector
37
reflexes help to control
all of these are correct (heart rate, blood pressure, digestive activity)
38
a patient is suffering from the inability to distinguish various types of odors. this patient may have damage to which of the following?
olfactory nerve (I)
39
which of the following appears to exert the most direct influence over autonomic functions?
hypothalamus
40
whihf of the following is part of the inner tunic of the eye?
retina
41
movement of hair cells in the semicircular canals signals
the direction of motion
42
sound vibrations pass from the
auricle to external acoustic meatus to tympanic membrane
43
the point at which the optic tract crosses over is called the
optic chiasma
44
the olfactory organs function can be described as
all of these are correct (taste food, allowing us to experience pleasant aromas in nature, aiding in food selection)
45
sound vibrations pass from the
malleus to incus to stapes
46
which of the following is not one of the four layers of the eyelids?
lacrimal apparatus
47
as they extend from the retina to the brain, the nerve fibers
form the nasal half of each retina cross over
48
type of equilibrium that sense position of the head when the body is not moving
static
49
the only neurons that are regularly repalced when damaged are associated with
smell
50
the lens of the eye thickens when the
ciliary muscles contract
51
the hearing receptors are most closely associated with the
organ of corti
52
if a persons right visual cortex is damaged, the injury will most likely affect vision from the
medial side of one eye and the lateral side of the other eye
53
steroscopic vision results when the
images in the eye are different
54
the olfactory receptors are examples of
chemoreceptors
55
projection of a sensation is the
brain causing it to seem to come from the receptors being stimulated
56
which of the following receptors responds to light?
photoreceptor
57
the somatic and autonomic nervous systems differ in all of the following EXCEPT ___.
regulation of activity by higher brain centers
58
a sensation is
a feeling that results from a sensory impulse being sent to the brain
59
drugs called beta-blockers ___
decrease heart rate and blood pressure
60
there are ___ pairs of spinal nerves
31
61
visceral reflex arcs differ from somatic in that ___.
visceral arcs involve two motor neurons
62
nerves that carry impulses toward the CNS only are ___.
afferent nerves
63
where are the specialized senses found?
primarily in the head
64
which of these is NOT directly controlled by the autonomic nervous system?
skeletal muscle
65
problems in balance may follow trauma to which nerve?
vestibulocochlear
66
which part of the cerebral cortex is involved in intellect, cognition, recall, and personality?
prefrontal cortex (anterior association area)
67
pain receptors differ from other somatic reflexes by
adapting very little, if at all
68
the complex network of tiny islands of gray matter within the brain that acts as a filter for incoming sensory impulses is the
reticular formation
69
the ___ of the spinal cord supply nerves to the lower limb
lumbar enlargement
70
___ is the outermost layer of the meninges and forms the periosteum of the skull.
dura mater
71
what is the function of cerebral association area?
all of these are correct (to analyze and interpret sensory experiences, memory, reasoning, and judgement)
72
the consequences of sensory nerve fibers crossing over is that the
right hemisphere of the cerebrum receives sensory impulses orginating on the left side of the body and vice versa
73
what is the name of the lobe that lies under the frontal bone?
frontal lobe
74
the thin layer of gray matter that constitutes the outer portion of the cerebrum is called
cerebral cortex
75
which of the following is most closely associated with the diencephalon?
thalamus
76
which of the following is NOT a function of the CSF
initiation of some nerve impulses
77
if the area of the cerebral hemisphere correspodning to brocas area is damaged, what is the result?
motor control of the muscles associated with speech is lost
78
the primary somatosensory cortex is located in the ___.
prefrontal lobe
79
type of receptors that do not adapt rapidly to stimulation are assoicated with
smell
80
pain receptors
are generally stimulated by factors that can cause tissue damage
81
taste receptors are
modified epithelial cells
82
the transparent, anterior portion of the eyes outer tunic is called the
cornea
83
the ___ is the colored portion of the eye
iris
84
sound waves pass from the ___ in the cochlea
scala vestibuli to organ of corti to scala tympani
85
which of the following is NOT a primary taste sensation?
pungent
86
rhodopsin is found in
rod cells
87
type of receptors that do not adapt rapidly to stimulation are associated with
pain
88
the brain stem consists of
midbrain, medulla, and pons
89
a patient has an injury of the spine and is now suffering from a loss of motor function in his right arm. however, he still has normal sensory function in the arm. it is likely that his nervous tissue damage is located at ___?
the ventral root located at one or more of the cervical vertebrae
90
the primary somatosensory cortex is located in the ___
parietal lobe
91
___ is the outermost layer of the meninges and forms the periosteum of the skull
dura mater
92
the meninges consists of
all of these (pia mater, arachnoid mater, dura mater)
93
the subarachnoid space within the meninges contains
cerebrospinal fluid
94
the ___ is the outer, funnel-like structure that collects sound waves
auricle
95
the middle ear lies within the ___ bone
temporal
96
light is refracted when it passes
between media of different optical densities at an oblique angle
97
the ___ is the colored portion of the eye
iris
98
taste receptors are
modified epithelial cells
99
which of the following is a function of the parasympathetic division?
contracts smooth muscles of the bladder wall and relaxes urethral sphincter