Neuroanatomy > Forebrain > Flashcards

Forebrain Flashcards

(51 cards)

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1
Q

Motor Cortex

A

Precentral Gyrus

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2
Q

Somatosensory Cortex

A

Post-Central Gyrus

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3
Q

Precentral Gyrus

A

Motor Cortex

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4
Q

Post-Central Gyrus

A

Somatosensory Cortex

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5
Q

Somatosensory Cortex Image

A
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6
Q

Motor Cortex Homunculus Image

A
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7
Q

Broca’s Area

A

Located in Frontal cortex

responsible for speech production

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8
Q

Wernicke’s Area

A

Temporal lobe

can’t produce meaningful language

“word salad”

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9
Q

Telencephalon Functions

A

sensory

motor

language

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10
Q

Addt’l Telencepahlon Regions

A
  • Basal ganglia
    • motor function
  • amygdala
    • fear
    • emotional processing
  • hippocampus
    • memory/learning
    • spatial navigation
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11
Q

How many layers in neocortex?

A

6

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12
Q

afferent

A

incoming (arrives)

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13
Q

efferent

A

leaving (exits)

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14
Q

Internal Capsule

A

large network of white matter tracts for axons entereing and leaving the cerebral cortex

  1. anterior limb
  2. genu
  3. posterior limb
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15
Q

Internal Capsule labeling

A
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16
Q

Name the 3 types of cortical connecting fibers

A
  1. Association
  2. Commissural
  3. Projection
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17
Q

Define Association Fibers

A

Fibers connecting regions within the same hemisphere

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18
Q

Define Commissural fibers

A

Fibers connecting regions in oppostie hemispheres

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19
Q

Define Projection fibers

A

a) axons that originate outside telencephalon and project to cortex
b) axons that orignate in cortex and project elsewhere

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20
Q

Parts of Diencephalon

A

Thalamus/Hypothalamus

(dorsal thalamus, hyopthalamus, ventral thalamus, epithalamus)

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21
Q

Function of Diencephalon

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A

Processing center for information between sensory systems and cortex

22
Q

Location of Diencephalon

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A

3rd ventricle is a median between the two thalami.

Thalamus is wall of ventricle

23
Q

Name nuclei of Thalamus (dorsal thalamus)

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A
  1. Anterior
  2. Medial
  3. Lateral (dorsal and ventral tiers)
  4. Intralaminar
24
Q

Input/Output of Anterior Nuclei of Thalamus

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A

Input: limbic-related projectoions from the mammillary bodies + hippocampus

Output: cingulate gyrus (via internal capsule)

25
Input/Output of Medial nucli Thalamus
Input: frontal lobe + substantia nigra Output: may be involved in controlling eye movement
26
Input/Output of Lateral Thalamic Nucli
Input/Outputs: widespread, vary by location. Dorsal Tier contains large pulvinar nucleus which is involved in vision Ventral tier relays somatosensory info
27
Input/Output of Intralaminar thalamic nucelus
Input: sensory/pain pathways Output: somatosensory cortex
28
Thalamic Nuclie Code: A
Anterior
29
Thalamic Nuclie Code: CM
centromedian
30
Thalamic Nuclie Code: DM
dorsomedial
31
Thalamic Nuclie Code: LD
lateral dorsal
32
Thalamic Nuclie Code: LGB
lateral geniculate
33
Thalamic Nuclie Code: LP
Lateral Posterior
34
Thalamic Nuclie Code: MGB
medial geniculate
35
Thalamic Nuclie Code: P
pulvinar
36
Thalamic Nuclie Code: PF
parafasciular
37
Thalamic Nuclie Code: VA
ventral anterior
38
Thalamic Nuclie Code: VL
ventral lateral
39
Thalamic Nuclie Code: VPL
ventral posterolateral
40
Thalamic Nuclie Code: VPM
ventral posteromedial
41
VA & VL
motor-related
42
LD
limbic system
43
LP
visual salience/visual-guided behavior
44
VPL & VPM
somatosensory
45
P
visual processing
46
LGB
vision
47
MGB
auditory
48
Hypothalamus Functino
endocrine/autonomic functions (maintaining homeostasis)
49
Hypothalamus Divisions
1. preoptic 2. anterior (supraoptic) 3. medial (tuberal) 4. posterior (mammilliary)
50
coronal sections of 4 hypothalamic divisions (rostral to caudal)
51
Thalamic Projections
Neuroanatomy
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