Brain

Question 1

Brain parts

Answer 1

Telencephalon- cerebrum
Diencephalon- thalamus, hypothalamus, etc.
Mesencephalon- midbrain
Metencephalon- cerebellum, pons
Mylencephalon- medulla oblongata

Question 2

Arterial supply to brain

Answer 2

•Vertebral artery from subclavian artery :
Enters by foramen magnum,anterior to pons
Gives a small middle meningeal branch
Forms basilar artery at pons medulla junction
Posteroinferior cerebellar branch
Pontine branches
Anteroinferior cerebellar branches
Superior branches

• Internal carotid artery-
Anterior cerebral branch with communicating branch
Middle cerebral branch with posterior communicating branch

• circle of willus-
Anterior cerebral branch with communicating
Middle cerebral with posterior communicating branch
Basilar artery bifurcation

Question 3

Stroke

Answer 3

Blood supply to brain affected, based on etiology:

1. Ischemic- thrombic or embolic
2. Hemorrhagic

Question 4

Venous draingae

Answer 4

Via sinuses-
Superior saggital sinus
Inferior saggital sinus
Straight sinus
C
Transverse sinus
Sigmoid sinus
Inferior petrosal
Superior petrosal
Cavernous sinus
Intercavernous sinus
Internal juglar vein

Question 5

Cavernous sinus

Answer 5

Internal carotid artery
Abducens nerve
3rd nerve
5-1
5-2
4th nerve

Question 6

Cerebrum external features

Answer 6

3 poles-frontal, occipital, temporal
3 surfaces- medial, anterolateral, inferior- occipital & orbital parts
4 borders- superomedial, inferolateral, medial orbital, medial occipital

Question 7

Sulci on cerebrum

Answer 7

• central
• lateral
• parietoocciptal