Brain Flashcards

(44 cards)

1
Q

what are the 3 main parts of brainstem

A

pons
medulla
midbrain

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2
Q

what are major roles of the midbrain

A

motor tracts
reflexes
dopamine
voluntary movement of limbs

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3
Q

major roles of pons

A

relay center
breathing

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4
Q

major roles of medulla

A

crossing od motor tracts
heart rate and strength
breathing
vomiting
swallowing
hiccupping
sneezing
gestation
hearing & balance

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5
Q

what is the functional network of neurons that runs through the entire brainstem

A

reticular formation

  • sleep and arousal (consciousness) are its main function
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6
Q

what structures develop from the telencephalon

A

cerebral hemisphere
basal nuclei
lateral ventricles

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7
Q

what structures develop from diencephalon

A

thalamus
hypothalamus
epithalamus

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8
Q

key differences between cranial and spinal meninges

A

cranial dura has 2 layers

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9
Q

what large artery supplies the posterior brain

A

vertebral artery

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10
Q

the circle of willis ensures ____ can reach the brain, even if one route is blocked

A

blood

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11
Q

where is cerebrospinal fluid produced

A

choroid plexus of ventricles and gradually absorbed through arachnoid villi

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12
Q

where does cerebrospinal fluid flow

A

subarachnoid space

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13
Q

_______ travels through all parts of the brainstem and has an important function in sleep and arousal

A

reticular formation

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14
Q

where are visual, auditory and startle reflexes processed

A

superior and inferior colliculi of the midbrain

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15
Q

what is the ascending portion of the reticular formation called

A

reticular activating system

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16
Q

what region of the cerebellum governs equilibrium and balance

A

flocculonodular lobe

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17
Q

the white matter that connects the cerebrum hemisphere is called ______

A

corpus collasum

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18
Q

functions of hypothalamus

A

controls ANS
regulates hunger, thirst, feelings of satiety
coordinates between the nervous&endocrine system

19
Q

what secretes melatonin

20
Q

what structure carries CSF from the 3rd and 4th ventricle and is located in the midbrain

A

cerebral aqueduct

21
Q

role of central sulcus

A

separates primary motor area from primary sensory area

22
Q

what part of the brain is called the 5th lobe and aids in motor control, homeostasis and interoception

23
Q

what do commissural tracts do

A

conduct nerve impulses from one hemisphere to the other corpus callosum

corpus callosum is an example

24
Q

what part of the brain helps regulate initiation and termination of movements

25
what characteristics is the left hemisphere associated with
analytic reasoning math science
26
which brain wave indicates deep, dreamless sleep
delta
27
the type of rehearsal to move information from short term to long term memory is called
elaborative
28
is hearing a function of temporal lobe
yes
29
function of frontal lobe
main motor control of the body
30
is vision associated w occipital lobe
yes
31
what protects the brain from harmful bacteria and chemicals
blood brain barrier
32
what separates the primary motor area from sensory area
central sulcus
33
main sensory output to body is what lobe
parietal lobe
34
main lobe responsible for motor control
frontal
35
sensory relay to other parts of the brain lobe
thalamus
36
emotional system is _____
limbic system
37
neurological term that describes changes in neurons when they are stimulated
neural plasticity
38
largest motor tracts of the body that form two bulges in medulla oblongata and decussate here
pyramids
39
deep valley that separates the L and R hemispheres is called a ____
longitudinal fissure
40
meningeal layer most external in the cranium
dura layer middle = arachnoid inner = pia mater
41
region of the cerebral cortex posterior to the central sulcus in the postcentral gyrus of the parietal lobe of the cerebrum that localizes the points of the body where somatic sensations originate
primary somatosensory cortex
42
the great commissure of the brain between the cerebral hemispheres
corpus callosum
43
region of the cerebral cortex in the precentral gyrus of the frontal lobe of the cerebrum that controls specific movements of groups of mms
primary motor cortex
44