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Anatomy 403 > NEURO 6 > Flashcards

NEURO 6 Flashcards

1
Q

Thalamus

A

AKA dorsal thalamus
All sensory pass thru here
Largest organ of diencephalon
2 lobes connect by masa intermedia

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2
Q

Sensory thalamus

A

Medial geniculate nucleus
Lateral geniculate nucleus
Ventral posterior nucleus

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3
Q

Medial geniculate nucleus

A

Afferent: Inferior colliculus
Efferent: Auditory (A1)

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4
Q

Lateral geniculate nucleus

A

Afferent: Optic tract
Efferent: Visual (V1)

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5
Q

Ventral posterior nucleus

A

Afferent: Medial leminiscus, ALS
Efferent: Somatosensory (thru internal capsule)

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6
Q

Motor thalamus

A

Ventral anterior nucleus & ventral lateral nucleus
Afferent: Basal nuclei
Efferent: Cortex

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7
Q

Hypothalamus

A

Signaling, controls pituitary, autonomic, essential behaviors
PVN & SON release oxytocin & vasopressin on posterior pituitary
Controls anterior pituitary thru hypophyseal

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8
Q

Hypothalamic pathways

A

Retina - SCN - PVN - IML - SCG - pineal - melatonin

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9
Q

Thermoregulation

A

Posterior hypothalamus - heat conservation, sympathetic
Anterior hypothalamus - heat dissipation, parasympathetic

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10
Q

Layers of cortex

A

Neocortex, mesocortex, allocortex
Various layers with different thickness

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11
Q

Neocortex

A

Most of brain, 6 layers

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12
Q

Neocortex layers

A
  1. Molecular layer, pyramidal axons
  2. External granular layer, recipient
  3. External pyramidal, cortico-cortical output
  4. Internal granular layer, recipient from thalamus
  5. Internal pyramidal layer, primary output
  6. Multiform layer, output
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13
Q

Functional unit of cortex

A

Cortical column

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14
Q

Histological map

A

Motor 1 = 4
Sensory 1 = 3
Auditory 1 = 41/42
Visual 1 = 17

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15
Q

Projection

A

Thru internal capsule
Cortex to subcortex

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16
Q

Commissural

A

Thru corpus callosum
Between hemispheres

17
Q

Association

A

Within hemisphere

18
Q

Limbic system

A

Regulation of emotional behavior

19
Q

Diencephalon (part of limbic system)

A

Thalamus + hypothalamus

20
Q

Nucleus accumbens

A

Reward center

21
Q

Hippocampus

A

Memories
Includes dentate gyrus
Layers = polymorphic, pyramidal, molecular

22
Q

Perforant path

A

Entorhinal cortex to dentate gyrus

23
Q

Amygdala

A

Rostal to hippocampus
Basolateral = threat determiner
Central nucleus = scent (mating)

24
Q

Amygdala ablation

A

Passivity

25
Q

Amygdala stimulation

A

Fear

Anatomy 403 (13 decks)

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