Ch 13 Brain & Cranial Nerves Flashcards

(73 cards)

1
Q

control center for body fxns

A

brain

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2
Q

part of PNS; arise directly from brain

A

cranial nerves

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3
Q

major regions of the brain

A

brainstem, cerebellum, cerebrum, diencephalon

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4
Q

parts of the brainstem?

A

medulla oblongata, pons, midbrain

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5
Q

parts of the diencephalon?

A

thalamus, subthalamus, hypothalamus–pituitary gland, epithalamus–pineal gland

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6
Q

parts of the cerebrum?

A

hemispheres, basal ganglia, limbic system

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7
Q

vital nuclei of the medulla oblongata?

A

cardiac center, respiratory center

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8
Q

fxns of pyramids in medulla oblongata?

A

motor tracts for skeletal mm

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9
Q

fxns of olives in medulla oblongata?

A

balance & coordination, sound modulation

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10
Q

keeps brain alert and awake; loosely organized web of gray matter

A

reticular formation

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11
Q

relay center between cerebrum and cerebellum

A

pons

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12
Q

connection points

A

peduncles

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13
Q

the pons is the ______ center

A

sleep

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14
Q

aka mesencephalon

A

midbrain

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15
Q

tectum

A

roof

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16
Q

corpora quadrigemina consists of

A

superior colliculi (visual) and inferior colliculi (hearing)

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17
Q

descending nerve tracts

A

cerebral peduncles

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18
Q

ascending nerve tracts are located

A

tegmentum

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19
Q

unconscious regulation & coordination of motor activities

A

red nucleus

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20
Q

inhibitory motor center; degenerates in Parkinson disease; produce lots of dopamine

A

substantia nigra

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21
Q

fxns: somatic motor control, cardiovascular control, pain modulation, sleep & consciousness, habituation

A

reticular formation

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22
Q

when reticular formation doesn’t work and you fall asleep randomly

A

narcolepsy

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23
Q

BIG JOB of cerebellum

A

coordination of skeletal muscle contraction

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24
Q

folds of cerebellum

A

folia

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25
tree of life (white matter)
arbor vitae
26
gross motor coordination bc it doesn't take a lot of neurons to contract big muscle mvmts
vermis
27
fine motor contractions bc it takes lots of neurons to work all little muscles
two hemispheres
28
balance and eye mvmt
flocculomotor lobe
29
sits on top of brainstem
diencephalon
30
collection of nuclei that acts as a relay center of all sensory info besides smell
thalamus
31
thalamus is joined by
intermediate mass
32
3rd ventricle surrounds the
intermediate mass
33
involved in controlling motor function; right below thalamus
subthalamus
34
thin roof over third ventricle
epithalamus
35
pineal gland secretes and works closely with
melatonin and the reticular formation
36
fxn use as a landmark in CT scans
brain sand
37
relay from limbic system to midbrain
habenular nucleus
38
melatonin inhibits what hormones
GRH ; so no LH or FSH ; why kids don't produce ovaries or testes
39
homeostatic control center that is also a collection of nuclei
hypothalamus
40
olfaction reflexes and emotional response to smell
mamillary bodies
41
pituitary is divided into
anterior (adenohypophysis) and posterior (neurohypophysis) lobes
42
pituitary is connected to the thalamus via
infundibulum
43
anterior pituitary produces how many hormones
PRODUCES 6
44
posterior pituitary stores and releases how many hormones
STORES AND RELEASES 2 hypothalamic hormones
45
higher order thinking and personality
cerebrum
46
convolution
gyri
47
"sunk in" or depression
sulci
48
cognition, speech, motivation, mood, smell, voluntary motor control all comes from
frontal lobe
49
receives and interprets sensory input(except smell hearing and vision)
parietal
50
receives and interprets visual info
occipital
51
olfactory and auditory input, memory and learning, intuition, abstract thought
temporal
52
integration of taste hearing and visceral sensation
insula
53
outer gray matter of cerebrum; 40% mass of brain
cerebral cortex
54
receive sensory input and direct AP to pyramidal cells
stellate cells
55
output neurons
pyramidal cells
56
inner white matter of brain
cerebral medulla
57
three types of tracts
association: connect areas in same hemisphere commissural: connects hemispheres aka corpus callosum projection: connect cerebrum with other brain regions
58
distinct masses of soma in cerebrum, diencephalon, and midbrain
basal nuclei (basal ganglia)
59
influences emotions, motivation, mood, pain and pleasure
limbic system
60
mining's of brain
dura mater: subdural space: serous fluid arachnoid mater: subarachnoid space: CSF pia mater
61
cavities lined by ependymal cells
ventricles
62
lateral ventricles are separated by the
septum pellucidum
63
3rd ventricle is associated with
diencephalon
64
4th ventricle is associated with
pons and medulla
65
purposes of CSF
buoyancy, protection, chemical stability
66
old oliver ogg traveled to africa for very good vacations and holidays
olfactory, optic, occulomotor, trochlear, trigeminal, abducen, facial, vestibulocochlear, glossopharyngeal, vagus, accessory, hypoglossal
67
olfactory
sensory; smell
68
optic
sensory; sight
69
oculomotor
motor; skeletal--4 extrinsic eye muscles and eyelid | smooth--iris and ciliary muscles
70
trochlear
motor; superior oblique
71
trigeminal
both; ophthalmic (upper face), maxillary (lower face), mandibular (lower face)
72
abducen
motor; lateral rectus
73
facial
both; sensory--taste; motor--facial muscles