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Study Decks > Brain (A&P Lab 1) > Flashcards

Brain (A&P Lab 1) Flashcards

1
Q

1,300 - 1,400 grams

A

How many grams does the average adult brain weigh?

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2
Q

3 pounds

A

How many pounds does the average adult brain weigh?

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3
Q

Male

A

Which brain is slightly larger, the male or female?

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4
Q

No

A

Does a larger brain equal more intelligence?

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5
Q

The rostral part

A

What is the front part of the brain referred to as?

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6
Q

The forehead

A

The rostral part of the brain is also known as what?

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7
Q

cerebrum, cerebellum, brain stem

A

What are the three main divisions of the human brain?

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8
Q

the cerebrum

A

What is the largest part of the brain?

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9
Q

83%

A

What percentage of the brain is the cerebrum?

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10
Q

left and right cerebral hemispheres

A

What parts make up the cerebrum?

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11
Q

Gyri

A

What are the folds of tissue called?

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12
Q

sulci

A

What are the shallow grooves that separate the gyri called?

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13
Q

have a larger surface area

A

what do the gyri allow the brain to do?

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14
Q

longitudinal fissue

A

what are the right and left hemispheres separated longitudinally down the middle by?

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15
Q

the corpus callosum

A

internally, the brain is joined by a thick bundle of nerves called what?

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16
Q

five

A

how many anatomically and functionally distinct lobes does the cerebrum have?

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17
Q 
frontal
parietal
temporal
occipital
insula
A

what are the five lobes of the cerebrum?

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18
Q

pre-central gyrus

A

What is the very specific gyrus in the frontal lobe called?

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19
Q

the primary motor area of the brain

A

what is the precentral gyrus described as?

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20
Q

motor planning
voluntary mobility
memory
mood (emotions, aggression, and judgement)

A

what is the frontal lobe responsible for?

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21
Q

top part of the brain

A

where is the parietal lobe?

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22
Q

primary sensory cortex

A

what is the primary function of the parietal lobe?

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23
Q

receiving and interpreting information regarding the general senses

A

what is the parietal lobe responsible for?

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24
Q

back of the brain

A

where is the occipital lobe?

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25
Q

left and right of the brain

A

where is the temporal lobe?

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26
Q

hearing
smell
visual recognition
plays a role in learning and memory

A

what four things are the temporal lobe responsible for?

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27
Q

insula

A

what is the fifth lobe?

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28
Q

i6

A

what is the insula responsible for?

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29
Q

the cerebellum

A

what is the second largest region of the brain?

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30
Q

10%

A

in terms of size, what percentage of the total brain is the size of the cerebellum

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31
Q

over 50%

A

what percentage of the total neurons in the brain are in the cerebellum?

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32
Q

motor coordination
spatial perception
proprioceptive feedback from the muscles
organizational skills and management

A

what are four things the cerebellum is responsible for?

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33
Q

the thalamus

A

what structure in the brain is a sensory relay structure?

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34
Q

hypothalamus

A

what structure in the brain helps to control the pituitary gland?

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35
Q

the master gland of the body

A

what is another term the pituitary gland is referred to as?

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36
Q

the mid-brain

A

what part of the brain has no known function

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37
Q

cerebrum to the cerebellum

A

the pons is a relay center that transmits signals from what area to what area of the brain?

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38
Q

the spinal cord

A

the medulla obleongata connects the brain to what?

39
Q

regulates heart rate
regulates blood pressure
regulates breathing

A

what does the medulla oblongata do?

40
Q

11

A

Of 12 cranial nerves, how many of them originate or terminate in the brain stem?

41
Q

cranial nerve #1 - olfactory nerve

A

what is the one cranial nerve that does not originate in the brain stem?

42
Q

sense of smell

A

what is the the olfactory nerve responsible for?

43
Q

optic nerve

A

what is cranial nerve #2?

44
Q

optic chiasm

A

the optic nerves are going to cross at something called the

45
Q

sense of vision

A

what is the optic nerve responsible for?

46
Q

oculomotor nerve

A

what is cranial nerve #3?

47
Q

the pons

A

what part of the brain does the oculomotor nerve connect to?

48
Q

eye movement
closing eyelids
pupillary constriction

A

what is the oculomotor nerve responsible for?

49
Q

drooping eyelid

eye resting laterally

A

what are two effects that can take place as a result of a damaged oculomotor nerve?

50
Q

trochlear nerve

A

what is cranial nerve #4?

51
Q

some eye movements

medial rotation of the eye

A

what is the trochlear nerve responsible for?

52
Q

eye resting laterally

double vision

A

what are two things that could result from damage to the trochlear nerve?

53
Q

trigeminal nerve

A

trigeminal nerve

54
Q

it is the largest cranial nerve

A

name something notable about the trigeminal nerve

55
Q

ophthalmic branch
maxillary branch
mandibular branch

A

what are the three branches of the trigeminal nerve called?

56
Q

v1 and v2

opthalmic branch and maxillary branch

A

Which branches of the trigeminal nerve are the sensory branches?

57
Q

detecting pressure

detect temperature and pain

A

what types of things are these sensory branches going to do?

58
Q

the motor branch

A

what is the mandibular branch referred to as?

59
Q

ability to cheew (mastication)

A

what does v3 (mandibular branch) control?

60
Q

loss of sensation
difficulty detecting those sensations like temperature and pain
affect ability to chew

A

what would result from damage to the trigeminal nerve?

61
Q

abducens

A

what is cranial nerve number six?

62
Q

lateral eye movement (turning the eye out)

A

what is the abducens responsible for?

63
Q

the eye resting medially (turned inward)

A

what will damage to the abducens result in?

64
Q

facial nerve

A

what is cranial nerve number seven?

65
Q

both

A

is the facial nerve sensory, motor, or both?

66
Q 
smiling
laughing
crying
pouting
swallowing
salivation
A

what is the motor component of the facial nerve responsible for?

67
Q

taste

A

what does the sensory component of the facial nerve deal with?

68
Q

Bell’s palsy

A

what ailment is the facial nerve involved in?

69
Q

facial droop
lose control or muscle tone of the facial muscles
drooling

A

What effects does Bell’s palsy have?

70
Q

vestibular cochlear nerve

A

what is cranial nerve number 8?

71
Q

hearing and balance

A

what is the vestibular cochlear nerve responsible for?

72
Q

no

A

is nerve deafness correctable?

73
Q

glossopharyngeal nerve

A

what is cranial nerve number 9?

74
Q

both

A

is the glossopharyngeal nerve responsible for sensory, motor or both?

75
Q

touch and pressure

A

what responsibilities is the glossopharyngeal nerve responsible for?

76
Q

gag reflex

A

what motor functions does the glossopharyngeal nerve have?

77
Q

we would lose our ability to taste bitter and sour tasting objects

A

what would happen if the glossopharyngeal nerve were damaged?

78
Q

vagus nerve

A

what is cranial nerve number 10?

79
Q

it has the widest distribution of nerve fibers

it will reach the largest number of systems

A

what is notable about the vagus nerve?

80
Q 
a feeling of hunger or sense of fullness
gastrointestinal discomfort
control our ability to swallow
control our ability to speak
deceleration of our heart rate
bronchoconstrictionq
A

list things that the vagus nerve is responsible for

81
Q

it would be fatal

A

what would happen if both vagus nerves were damaged?

82
Q

accessory nerve

A

what is cranial nerve #11?

83
Q

swallowing
shrugging our shoulders
a little bit or head and neck movement

A

what is the accessory nerve responsible for?

84
Q

hypoglossal nerve

A

what is cranial nerve #12

85
Q

our tongue movements
swallowing
manipulate food in our mouths

A

what is the hypoglossal nerve responsible for?

86
Q

impaired speech

impaired ability to swallow

A

if we damage it, what will be the affect?

87
Q

dura mater
arachnoid mater
pia mater

A

what are the three layers of the meninges?

88
Q

the brain

A

what organ gets top priority over any other organ for blood, oxygen and nutrient supply?

89
Q

15%

A

what percentage of blood supply will the brain get?

90
Q

20%

A

what percentage of oxygen and glucose will the brain get?

91
Q

10 seconds

A

how many seconds without blood flow before the brain loses consciousness?

92
Q

impaired neural activity

A

what happens to the brain after 1-2 minutes without blood flow

93
Q

irreversible brain damage

A

what happens to the brain after 4 minutes or longer of blood loss or stop of blood flow?

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