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Anatomy > Ch 15.2 Meninges and Ventricles > Flashcards

Ch 15.2 Meninges and Ventricles Flashcards

1
Q

Limbic system summary

A
  • Cerebral and diencephalic structures that form a ring around the diencephalon
  • Process and experience emotions
  • Memory formation - integration of past memories of physical sensations with emotional states
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2
Q

Limbic system componets

A

Hippocampus
Fornix
amygdaloid body

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3
Q

hippocampus

A
  • Essential in consolidating long term memories
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4
Q
  • Fornix
A
  • Thin tract of white for connection
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5
Q
  • Amygdaloid body
A
  • Involved in emotion, especially fear
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6
Q

Cranial Meninges & ventricles function

A
  • Support and protections of the brain
    • Bony cranium
    • PROTECTIVE CONNECTIVE TISSUE (MENINGES)
    • Cerebral fluid (CSF)
    • Blood-brain barrier
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7
Q

Layers of cranial meninges

A

dura matter
arachnoid matter
Pia matter

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8
Q

dura matter

A
  • Most superficial
    - Periosteal and meningeal
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9
Q

arachnoid matter

A
  • Subarachnoid space
    - 2nd layer
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10
Q

pia matter

A
  • Cerebral cortex
    - Bottom layer
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11
Q

Ventricles of the brain

A

lateral
third
fourth

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12
Q

lateral ventricles

A
  • Top ventricles look like testes
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13
Q
  • Third ventricle
A
  • middle of head below lateral ventricles
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14
Q
  • Fourth ventricle
A
  • At cerebellum area
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15
Q

Ventricles and cerebrospinal fluid flow

A
  • Lateral ventricles (2) -> Interventricular foramina (2) -> 3rd ventricle -> cerebral aqueduct -> 4th ventricle -> central canal
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16
Q

number of cranial nerves

A

12 (I -> XII)

17
Q

CN I

A

Olfactory
sensory
Smell

18
Q

CN II

A

Optic
Sensory
Vision

19
Q

CN III

A

Oculomotor
Motor
Most eye movement

20
Q

CN IV

A

Trochlear
Motor
Moves eye

21
Q

CN V

A

Trigeminal
Both
Face sensation, mastication

22
Q

CN VI

A

Abducens
Motor
Abducts eye

23
Q

CN VII

A

Facial
Both
Facial expression, taste

24
Q

CN VIII

A

vestibulocochlear
Sensory
Hearing, balance

25
Q

CN IX

A

Glossopharyngeal
Both
Taste and gag reflex

26
Q

CN X

A

Vagus
Both
Gag reflex, Parasympathetic innervation

27
Q

CN XI

A

Accessory
Motor
Shoulder Shrug

28
Q

CN XII

A

Hypoglossal
Motor
Swallowing, speech

Anatomy (19 decks)

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