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3 NERVOUS SYSTEM > BLOOD SUPPLY OF BRAIN > Flashcards

BLOOD SUPPLY OF BRAIN Flashcards

(50 cards)

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1
Q
A

Circle of WILLIS

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2
Q

Subclavian Artery
Branches
🧠⚡VIT में SIT / CD⚡

A
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3
Q

Vertebral Artery
Parts

A
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4
Q

Why STELLATE GANGLION is NOT GIVEN @ C7 level?

A

Closely related to 1st PART of VERTEBRAL ARTERY

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5
Q

Which CERVICAL vertebrae does not transmit VERTEBRAL ARTERY?

A

C7

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6
Q

Through Which foramen does Vertebral Artery pass

A

Foramen Transversarium

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7
Q

In the back of NECK, Vertebral Artery is ➕ in which TRIANGLE

A

Sub-occipital Triangle

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8
Q

Vertebral Artery FUSE to form the BASILAR ARTERY at the level of

A

Ponto-Medullary Junction

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9
Q

Internal Carotid Artery

A
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10
Q

Bifurcation of COMMON CAROTID ARTERY occurs at

A

UPPER BORDER OF THYROID LAMINA Cartilage
(C4-C3)

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11
Q

Parts of INTERNAL CAROTID ARTERY
🧠⚡ CPCC⚡

A
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12
Q

CAROTID SINUS

A

Dilatation at Lower part of 1st Part of Internal Carotid ARTERY is known as CAROTID SINYS

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13
Q

CAROTID SIGMOID
🧠⚡cPCC ⚡

A

Petrous ➕ Cavernous ➕ Cerebral part of INTERNAL CAROTID ARTERY

CALLED BECUASE OF SIGMOID Course

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14
Q

Branches from CAVERNOUS Part of ICA
🧠⚡HMG ⚡

A

⭐ Hypophyseal brach
⭐ Meningeal branch
⭐ Ganglionic Branch: branch to TRIGEMINAL Ganglion

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15
Q

Branches from CEREBRAL Part of ICA
🧠⚡OPAAM⚡

A

⭐ Middle cerebral artery
⭐ Anterior Cerebral Artery
⭐ Posterior Communicating artery
⭐ Anterior Choroidal Artery
⭐ Ophthalmic artery

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16
Q

⭐ ANTERIOR communicating artery is BRANCH OF

⭐ POSTERIOR communicating artery is BRANCH OF

A

⭐ ANTERIOR communicating artery is BRANCH OF
-Anterior Cerebral Artery

⭐ POSTERIOR communicating artery is BRANCH OF
-Internal Carotid Artery

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17
Q

Largest TERMINAL BRANCH of ICA

A

Middle CEREBRAL ARTERY

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18
Q

⭐ PICA is a branch of

⭐ AICA is a branch of

A

⭐ PICA is a branch of
Vertebral Artery

⭐ AICA is a branch of
Basilar ARTERY

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19
Q

Which CEREBRAL ARTERY is NOT INVOLVED in CIRCLE OF WILLIS

A

Middle CEREBRAL ARTERY

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20
Q

Branches of BASILAR ARTERY

A
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21
Q

Middle Cerebral Artery
Segments

Study These Flashcards
A

M1
M2
-M2 superior
-M2 inferior

22
Q

Branch of M1 segment

Study These Flashcards
A

LENTICULOSTRIATE branch of MCA
⬇️
SUPPLIES INTERNAL CAPSULE

23
Q

Proximal MCA occlusion: Features
🧠⚡3H ⚡

Study These Flashcards
A

Occlusion at M1 Segment

  1. C/L Hemiplegia
  2. C/L Hemisensory loss
  3. C/L Hemianopia (Homogenous Hemianopia)
    ➕
  4. Global Aphasia (if dominant lobe involved)
  5. Frontal eye field involvement / Horizontal Gaze Palsy
  6. Cerebral Edema
  7. Loss of Consciousness & Seizures: DUE TO: Cerebral Edema
24
Q

Sites of OCCLUSION of MCA

Study These Flashcards
A
  1. Proximal MCA OCCLUSION
  2. Lenticulostriate vessels
  3. M2 OCCLUSION
  4. M2 SUPERIOR Division OCCLUSION
  5. M2 INFERIOR Division OCCLUSION
25
M2 Segment OCCLUSION 🧠⚡3H ➕⚡
1. C/L Hemiplegia 2. C/L Hemisensory loss 3. C/L Hemianopia ➕ TRANS-CORTICAL APHASIA > > Conduction Aphasia
26
Which Segment OCCLUSION of Middle Cerebral Artery DOES NOT CAUSES Weakness?
M2 INFERIOR DIVISION Supplies TEMPORAL LOBE
27
M2 SUPERIOR DIVISION OCCLUSION
Weakness ➕ Broca's APHASIA ➕ Frontal Eye Field ➕ Personality Issues (Parietal Lobe)
28
Features suggesting CORTICAL STROKE
1. Loss of Consciousness 2. Seizures 3. Aphasia ✨ Global Aphasia ✨ Broca's ✨ Wernicke's ✨ Trans-cortical 4. Frontal Eye Field Involvement 5. Hemisensory loss 6. Homonymous Hemianopia
29
Face & UPPER LIMB Predominant Weakness is suggestive of
MCA involvement Superolatetal surface is supplied by MCA
30
Wernicke's Aphasia ➕ No weakness ➕ Superior QUADRANTANOPIA Suggestive of
M2 Inferior Division OCCLUSION
31
Loss of Consciousness is DUE TO:
Cerebral Edema ✨ Seen in 🎯 M1 segment OCCLUSION 🎯 M2 segment OCCLUSION
32
Seizure in Stroke is DUE TO:
Cerebral Edema ✨ Seen in 🎯 M1 segment OCCLUSION 🎯 M2 segment OCCLUSION
33
Specific Lobar Findings in Cortical Stroke
Frontal Lobe: Personality changes Parietal Lobe: Calculation Language, Apraxia Angulate Gyris: GERSTMANN Syndrome
34
Temporal Lobe is supplied by
🎯 MEDIAL ✨ Posterior Cerebral Artery 🎯 LATERAL ✨ MCA
35
Auditory Loss is Not seen in TEMPORAL STROKE DUE TO: MCA OCCLUSION Why?
Auditory area has B/L supply
36
Lenticulo-striate vessel is a type of
Lacunar artery ✨ Size: 30-300mm
37
Lenticulo-striate artery OCCLUSION 🧠⚡ 3H⚡
1. C/L DENSE Hemiplegia 2. Homonymous Hemianopia 3. Hemisensory loss 4. Facial Nerve Palsy
38
How to differentiate between CORTICAL STROKE & INTERNAL CAPSULE LESION
39
⚡Higher Mental Function NORMAL means? ⚡Higher Mental Function ABNORMAL means?
⚡Higher Mental Function NORMAL means? 🎯 Subcortical Lesion only ⚡Higher Mental Function ABNORMAL means? 🎯 Frontal Lobe Involvement ⬇️ M1 or M2 Segment INVOLVEMENT MUST
40
DOMINANT Lobe STROKE FEATURES
1. Aphasia 2. Gerstmann Syndrome
41
NON DOMINANT Lobe STROKE FEATURES
1. Visuo spatial disorientation 2. Constructional Apraxia 3. Dressing Apraxia 4. Hemispatial Neglect
42
Anterior Cerebral Artery segments based on
⭐ Anterior Communicating Artery 🎯 A1: Pre Communal (Proximal to ACOM) 🎯 A2: Post Communal (Distal to ACOM)
43
Which ACA OCCLUSION can't produce STROKE
A1 Segment ⬇️ DUE TO: Collaterals ➕
44
A1 Segment supplies
1. Anterior Limb of INTERNAL CAPSULE 2. Anterior Head of CAUDATE NUCLEUS 3. Anterior HYPOTHALAMUS 4. Amygdala
45
A2 Segment involves:
1. Frontal Pole 2. Entire Medial Part of Frontal & Parietal Lobe
46
A2 SEGMENT STROKE Features
1. C/L LOWER LIMB Predominant weakness 2. Bowel & Bladder Incontinence 3. Gait Apraxia: Inability to Lift Foot 4. Primitive Reflexes (suckling reflex) 5. Cortical Sensory Loss 6. Some Corona Radiata symptoms
47
Approach to a case of HEMIPLEGIA
48
Middle CEREBRAL artery ( MCA) supplies MAINLY WHICH LOBES of BRAIN?
1. Frontal 2. Parietal 3. Lateral Temporal
49
Posterior CEREBRAL artery (PCA) supplies MAINLY WHICH LOBES of BRAIN?
Medial TEMPORAL lobe Occipital Lobe
50
A1 Anterior CEREBRAL artery (ACA) supplies MAINLY WHICH parts of BRAIN?
Anterior Limb of Internal Capsule Amygdala Caudate nucleus Hypothalamas

3 NERVOUS SYSTEM (40 decks)

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