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Anatomy 205 > 3rd Ventricle > Flashcards

3rd Ventricle Flashcards

1
Q

Definition

A

Diencephalon cavity

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2
Q

Site

A

Lying between both thalami

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3
Q

Communications: in front

A

With lateral ventricles through interventricular foramina

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4
Q

Communications: behind

A

With midbrain aqueduct

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5
Q

Boundaries

A
  1. Roof
  2. Floor
  3. Anterior wall
  4. Posterior wall
  5. Lateral wall
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6
Q

Roof contents

A

Ependyma: invaginated by 3rd ventricle choroid plexus

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7
Q

Roof relations: superior

A
  1. Transverse cerebral fissure ->
    - contains tela choroidea ->
    - which contains posterior choroidal artery and internal cerebral vein
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8
Q

Roof relations: more superior

A
  1. Fornix body
  2. Lateral ventricle body
  3. Septum pellucidum
  4. Corpus callosum body
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9
Q

Floor relations: front

A

Hypothalamus:
1. Optic chiasma
2. Infundibulum
3. Tuber cinereum
4. Mammillary bodies
5. Posterior perforated substance

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10
Q

Floor relations: behind

A

Subthalamus

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11
Q

Anterior wall contents

A
  1. Lamina terminalis
  2. Anterior commissure
  3. Fornix column
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12
Q

Lateral wall contents

A
  1. Thalamus
  2. Hypothalamus
  3. Hypothalamic sulcus
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13
Q

Posterior wall

A

Upper opening of midbrain aqueduct

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14
Q

Posterior wall posterior commissure site

A

Pineal body stalk lower limb

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15
Q

Posterior wall pineal body

A

Invaginates by pineal recess

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16
Q

Posterior wall Habenular commissure site

A

Pineal body stalk upper limb

17
Q

Recesses: below and in front

A
  1. Optic recess
  2. Infundibulum recess
18
Q

Recesses: above and behind

A
  1. Suprapineal recess
  2. Pineal recess
19
Q

Optic recess

A

Above and in front of optic chiasma

20
Q

Infundibulum recess

A

Below and behind optic chiasma

21
Q

Suprapineal recess

A

Above pineal body stalk

22
Q

Pineal recess

A

Projects into pineal body stalk above posterior commissure and below Habenular commissure

Anatomy 205 (197 decks)

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