Blood Supply, meninges and CSF Flashcards
Identify the artery indicated by the arrow
Subclavian artery
Identify the artery indicated by the arrow
Common carotid artery
Identify the artery indicated by the arrow and name the structures it is passing through
- Vertebral artery
- Passing through the foramen transversarium
Identify the artery indicated by the arrow and state what it supplies
- Internal carotid artery
- Supplies the brain
Draw a rough sketch of the circle of Willis
Which groups of central arteries penetrate the deep brain tissue in the region of the circle of Willis?
- Anteromedial group
- Anterolateral group
- Posteromedial group
- Posterolateral group
Where does the medial striate artery branch from and what does it supply?
- Branch of anterior cerebral
- Supplies the anterior part of the internal capsule
- Also known as the artery of Heubner
Identify the arteries indicated by the arrows in the picture
What is the origin of the anteromedial group of arteries?
Anterior cerebral and anterior communicating arteries
What structures are supplied by the anteromedial group of arteries?
- Anterior hypothalamus
- Preoptic area
What is the origin of the anterolateral group of arteries?
Middle cerebral artery
What structures are supplied by the anterolateral group of arteries?
- Head of the caudate nucleus
- Lateral part of pallidum
- External capsule
- Claustrum
- Putamen
- Internal capsule (anterior limb, genu and part of posterior limb)
- Lateral hypothalamus
What is the origin of the posteromedial group of arteries?
Posterior cerebral and posterior communicating arteries
What structures are supplied by the posteromedial group of arteries?
- Thalamus (anterior and medial parts)
- Subthalamus
- Hypothalamus (middle and posterior parts)
- Midbrain (medial part of cerebral peduncle)
What is the origin of the posterolateral group of arteries?
Posterior cerebral artery lateral to midbrain
What structures are supplied by the posterolateral group of arteries?
- Thalamus (posterior parts, including geniculate bodies)
- Midbrain (tectum and lateral part of cerebral peduncle)
What are the three arteries of the cerebellum and where do the originate?
From vertebral artery:
- Posterior interior cerebellar artery
From the basilar artery:
- Anterior inferior cerebellar artery
- Superior cerebellar artery
Which arteries supply the midbrain?
- Branches from the termination of the basilar artery
- Initial segment of the posterior cerebral artery
Which arteries supply the pons?
- Pontine arteries
Which arteries supply the medulla?
- Anterior inferior cerebellar artery
- Posterior inferior cerebellar artery
Which arteries supply the choroid plexus of the lateral and 3rd ventricles?
One anterior and two posterior choroidal arteries on each side
Which arteries supply the choroid plexus of the 4th ventricle?
Branches from the anterior inferior cerebellar artery
Which sinus is indicated by the arrow?
Superior sagittal
Which sinus is indicated by the arrow?
Straight
