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CSF & Ventricles Flashcards

1
Q

Glial cells derived from Neuroectoderm

A

Astrocytes
Oligodendrocytes
Ependymal cells

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2
Q

Glial cell derived from Mesoderm

A

Microglia

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3
Q

Schwann cells derived from

A

Neural Crest Cells

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4
Q

CSF is actively secreted by

A
  1. Choroidal plexus

Minor Source;

  1. Ependymal cells
  2. Brain substance through Perivascular Space
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5
Q

Ependymal cells encloses tuft of capillaries is called as

A

Tela choroidae → which forms Choroid plexus

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6
Q

Capillaries forming the tela chotoidae are derived from

A

Choroidal arteries

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7
Q

Anterior choroidal artery is a branch of

A

Internal Carotid Artery

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8
Q

Posterior choroidal artery is a branch of

A

Posterior cerebral artery

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9
Q

Anterior choroidal artery supplies Choroid Plexus of _____________ Ventricles

A

Lateral Ventricles

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10
Q

Posterior Choroidal Artery supplies Choroid Plexus of ____________ Ventricle

A

Third(3rd)

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11
Q

Choroid plexus of 4th Ventricle derived from which artery

A

PICA > AICA

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12
Q

Total volume of CSF produced per day

A

500-600 ml/day > 600-700 ml/day

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13
Q

Name the aperture through which CSF comes to

Cisterna magna / Cerebellomedullary cistern

from 4th ventricle

A

Foramen of Magendie

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14
Q

Foramen of Luschka connects

A

2 lateral Foramen of Luschka;

connects 4th Ventricle to Cerebellopontine Angle Cistern

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15
Q

Foramen of Magendie and Foramen of Luschka are present in the

A

Inferior Medullary Velum

It forms the roof of 4th ventricle

It is made up of non-nervous tissue

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16
Q

Cistern means

A

Enlarged Subarachnoid Space

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17
Q

CSF from the Subarachnoid Space will drain into Dural Venous Sinus via

A

Arachnoid Villi

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18
Q

Bridging vein is content of

A

Subdural Space

In Subdural haemorrhage, Bridging veins are involved

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19
Q

Hypertrophy of Arachnoid Villi is called as

A

Arachnoid Granulations / Pacchonion Bodies

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20
Q

Aqueductal Stenoisis leads to ?

Is mc cause for?

A

Dilation of 3rd Ventricle

Is the mc cause for Congenital Hydrocephalus

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21
Q

Atresia of Foramen Magendie and Luschka seen in

A

Dandy Walker Syndrome ~ it is due to the Cyst in Posterior Cranial Fossa

→ Dilatation of 4th ventricle

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22
Q

What is Cavum Septum Pellucidum

A

It is the space between the 2 Septal Leaflets

Present in the early stages of development

Until 36th week of Pregnancy

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23
Q

Cavum Septum Pellucidum is present until

A

36th week of pregnancy

After that 2 Septal Leaflets will fuse and

Forms Septum Pellucidum

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24
Q

How Cavum Septum Pellucidum gets CSF

A

It filters CSF from Ventricle through septal leaflets

Has no communication with any ventricle

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25
Q

MC type of Cavum Septum Pellucidum is

A

Non Communicating Type

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26
Q

What is Collateral Trigone

A

It is the Junction of Lateral Ventricle between the Body, Inferior Horn and Posterior Horn

27
Q

Relation of Caudate Nucleus to

Anterior Horn ~
And
Body ~

A

Floor for Anterior Horn and Body
of lateral Ventricle is formed by

Head of the Caudate Nucleus

28
Q

Relation of Caudate Nucleus to

Inferior Horn~

A

For inferior horn Roof is formed by Caudate Nucleus

29
Q

Anterior Horn relations

Anteriorly ~

Roof ~

Medially~

Floor and lateral wall ~

A

Anteriorly ~ Genu and Rostrum of Corpus Callosum

Roof ~Body of Corpus Callosum

Medially~ Septum pellucidum

Floor and Lateral wall ~ Caudate Necleus

30
Q

Extension of Body of Lateral Ventricle

A

Extending from Foramen of Monro to Splenium of corpus callosum

31
Q

Body of Lateral Ventricle relations

Roof~

Floor-Medial ~

Floor-Lateral ~

Medially~

A

Roof ~ Body of Corpus Callosum

Floor-Medial ~ Fornix

Floor-Lateral ~ Thalamus and Caudate

Medially ~ Septum Pellucidum

32
Q

Floor on the Medial Side (of the Body of Lateral Ventricle) is formed by

33
Q

Floor on the Lateral Side (of the Body of Lateral Ventricle) is formed by

A

Thalamus and Caudate Nucleus

34
Q

Floor and Lateral wall of Posterior Horn is formed by

35
Q

Medial wall of Posterior Horn is formed by

A

2 Elevations;

Forceps major

Calcar avis

36
Q

Forceps major arise from

A

Splenium of Corpus Callosum

37
Q

Anterior Part of Calcarine Sulcus forms an elevation is

A

Calcar Avis ~ it is a Medial relation of Posterior Horn

38
Q

Inferior horn relations

Roof ~

Floor ~

A

Roof ~ Tapetum + Tail of Caudate Nucleus

Floor ~ Hippocampus + Collateral Eminence

39
Q

Collateral sulcus forms

A

Collateral Eminence,

Present in the Floor of Inferior Horn

40
Q

2 Sulci giving impression in the lateral ventricle are

A

Calvar Avis
Collateral sulcus

These are Complete Sulcus

41
Q

3rd Ventricle derided from

A

Diencephalon

It is the cavity of Diencephalon

42
Q

Lateral wall of 3rd ventricle is formed by

A

Thalamus and Hypothalamus

43
Q

Anterior Relations of 3rd Ventricle is formed by

A
  1. Anterior columns of Fornix
  2. Anterior Commissure
  3. Lamina Terminalis
44
Q

1st Commissure to develop in Brain

A

Anterior Commissure

45
Q

Sequential arrangement of formation of Commissural fibres

A

Anterior Commissure - 1st

Fornix - 2nd

Corpus Callosum - 3rd

46
Q

Fornix is made up of

A

Association Fibres > Commissural Fibres > Projection Fibres

47
Q

OVLT means

A

Organum Vasculosum Lamina Terminalis

  • Is Remnant of Cranial Neuropore
  • No BBB in OVLT
48
Q

Remnant of Cranial Neuropore is

49
Q

Cranial Neoropore will close by

50
Q

Posterior relations of 3rd Ventricle

A
  1. Pineal Gland
  2. Habenular Commissure
  3. Posterior Commissure
51
Q

Floor of 3rd Ventricle is Formed by

A

B

C

D

E

F

G

A

A ~ Optic Chiasma

B ~ Infundibulum

C ~ Pituitary Gland

D ~ Tuber Cinereum

E ~ Mammillary Body

F ~ Post. Perforated Substance

G ~ Tegmentum of MB

52
Q

Contents of Inter Peduncular Fossa are same ad Floor of 3rd Ventricle except

A

First ~ and Last ~

Except Optic Chiasma and
Tegmentum of MB

53
Q

Contents of Inter Peduncular Fossa

A

Oculomotor Nerve +

Infundibulum

Pituitary Gland

Tuber Cinereum

Mammillary body

Posterior Perforated Substance

54
Q

Roof of 4th ventricle is formed by

Above ~

Below ~

A

Above ~ Superior Medullary Velum
(Nervous tissue)

Below ~ Inferior Medullary Velum
(Non Nervous tissue, made up of Ependymal)

55
Q

Floor of 4th Ventricle is formed by

A

Lower part of Pons

Upper part of Medulla

Stria Medullaris ~ white matter between Pons and Medulla

56
Q

Shape of 4th Ventricle

A

Diamond shaped

57
Q

Pigmented area in the upper part of Sulcus limitans

A

Locus ceruleus ~ bluish grey in color

Present in the lower part of pons in the floor of 4th ventricle

58
Q

Between the Median Sulcus and Sulcus Limitans, round swelling is called

A

Facial colliculus ~ present in the lower part of pons

59
Q

Facial colliculus is due to

A

Axons of Facial Nerve

60
Q

Nucleus under the Facial colliculus

A

Abducent Nucleus

61
Q

Damage to Facial Colliculus will results in

Structure damaged ~

Muscle Affected ~

A

Axons of Facial Nerve > Abducent Nucleus

Risorius muscle > Lateral rectus

62
Q

Triangle in the Lateral aspect of Sulcus limitans

A

Vestibualr Triangle ~ contains Vestibular Nucleus

63
Q

Two triangles in the lower part of floor of 4th ventricle

Or upper part of medulla

A
  1. Hypoglossal Triangle

2. Vagal Triangle

64
Q

Circumventricular Organs

A
  1. OVLT (Lamina Terminalis)
  2. Median Eminence
  3. Post. Part of Pituitary
  4. Pineal Gland
  5. Area Postrema
  6. Sub commissural organs
  7. Sun fornical organs

Neuroanatomy (9 decks)

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