Anatomy of the cerebral circulation Week 5 objective
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Anatomy of the Cerebral Circulation Basila r a. Posterior cerebral a. AICA Labyrinth ine a. Paramedian as. Superio r cerebel lar a. Which cranial n.??? Which cranial n.??? Ant. Spinal artery Vertebr al a. PIC A Post. Spinal a. 1 2 3 4 5 6 7 8 10 9
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19-Oct-2014 -
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Transcript of Anatomy of the cerebral circulation Week 5 objective
Anatomy of the Cerebral Circulation
Basilar a.Posterior cerebral a.
AICA
Labyrinthine a.
Paramedian as.Superior cerebellar a.
Which cranial n.???
Which cranial n.???
Ant. Spinal artery Vertebral a.
PICA
Post. Spinal a.
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Anatomy of the Cerebral Circulation
Hypophyseal as. of ICA
Basilar a.
Optic nerve
Optic chiasma
Anterior communicating a.A.C.A.
Internal carotid a.
Posterior communicating a.
Posterior cerebral a.
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What is the artery?
What is the artery?
HypothalamusThalamus
Posterior cerebral a
PCA
•Midbrain, leading to midbrain lesions (ipsilateral oculomotor paralysis, and contralateral hemiplegia) = Weber’s syndrome.
•Thalamus, leading to thalamic syndrome.•Occipital lobe, leading to homonymous hemianopia.
During a game, a 26 year old baseball player is hit in the head by a baseball which fractures the optic canal. Which pair of structures is most likely to be damaged ? a. Optic nerve and Ophthalmic vein b. Ophthalmic vein and Ophthalmic nerve c. Ophthalmic artery and Optic nerve d. Ophthalmic nerve and Optic nerve e. Ophthalmic artery and Ophthalmic vein
The answer is C : the optic canal transmits the optic nerve and ophthalmic artery. The ophthalmic vein enter the orbit through the superior orbital fissure.
