forebrain Flashcards

1
Q

consists of

A

cerebral hemispheres

diencephalon

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2
Q

diencephalon consists of

A

thalamus
hypothelamus
epithalamus
subthalamus

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3
Q

thalamus

A

major relay for sensory info to cortex

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4
Q

hypothalamus

A

regulates homeostasis and influences hormone release

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5
Q

epithalamus

A

influences sleep and wakefulness through pineal gland

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6
Q

subthalamus

A

influences motor activity through inhibition of undesired movement

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7
Q

hypothalamus is ___to brainstem

A

rostral

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8
Q

hypothalamus regulates homeostasis by

A

influencing pituitary gland
regulating food and water intake
regulating sleep wake cycle
regulating parasympathetic and sympathetic NS

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9
Q

hypothalamus extends from ___ anteriorly and ___ posteriorly

A

optic chiasm and mamillary bodies

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10
Q

thalamus

A

major sensory relay

all sensory info on way to cerebral cortex(except olfactory nerve) synapses and travels through thalamus

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11
Q

cerebral hemisphere grooves and folds

A

sulci and gyri

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12
Q

gray matter in brain

A

cerebral cortex( follows grooves and folds) and deep nuclei

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13
Q

white matter

A

most of volume of cerebral hemispheres

3 types of fibers

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14
Q

projection fibers

A

sensory connections coming from brainstem and spinal cord synapsing on thalamus
motor connections descending from cerebral cortex to brainstem and spinal cord

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15
Q

association fibers

A

connections within lobes or one lobe to another

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16
Q

commissural fibers

A

connections between hemispheres

17
Q

frontal lobe function

A

cognition, decision making, judgement, voluntary movement(primary motor cortex)

18
Q

parietal lobe function

A

touch (somatosensory cortex) proprioception

19
Q

occipital lobe function

A

vision(primary visual cortex)

20
Q

temporal lobe function

A

auditory, olfactory, fear response (amygdala), learning(hippocampus)

21
Q

frontal lobe bordered by

A

central sulcus and lateral fissure

22
Q

precentral gyrus in frontal lobe contains

A

primary motor cortex that controls execution of movement

23
Q

parietal lobe bordered by

A

central sulcus and lateral fissure

posterior border is less well defined

24
Q

post central gyrus in parietal lobe

A

contains the main receptive area for sense of touch and a somatosensory map

25
Q

occipital lobe bordered by

A

preoccipital notch

26
Q

temporal lobe bordered by

A

laateral fissure and preoccipital notch

27
Q

transverse temporal gyri in lateral sulcus

A

audition

28
Q

insular cortex in lateral sulcus

A

pain and taste

29
Q

deep nuclei part of basal ganglia

A

globus pallidus
caudate
putamen

30
Q

amygdala

A

deep nuclei involved in fear response and emotional memory

31
Q

internal capsule

A

white matter tract
Includes axons relaying sensory info from thalamus to cerebral cortex and axons relaying motor signals to motor neurons from the cerebral cortex to lower levels