5 Blood Supply Of The Brain

Question 1

The ________ carotid artery passes through the cavernous sinus and the ___________ space at the base of the brain.

The ophthalmic branch leaves the skull through the superior ______ foramen. Also gives rise to _______ retinal artery

Answer 1

Internal. Subarachnoid

Optic. Central

Question 2

The anterior cerebral artery supplies the ______ parts of the frontal and parietal lobes. The ______________ artery follows the cingulate sulcus… continues as pericallsoal artery.

Answer 2

Medial

Callosomarginal

Question 3

The _____ cerebral artery emerges from lateral sulcus and spread out to supply most of the lateral surface of cerebral hemisphere. Most of precentral and postcentral gyri are here, so _________ causes language defects

Answer 3

Middle

Occlusion

Question 4

The vertebral-basilar system enters through the skull by way of foramen ______.

The ________ spinal artery runs causally along posterolateral spinal cord, supplies posterior THIRD of that half of the cord.

The _______ spinal artery joins its counterpart forming anterior spinal artery and supplies anterior TWO thirds of the cord.

Answer 4

Magnum

Posterior

Anterior

Question 5

Vertebral-basilar system

At the level of the midbrain, the basilar artery ________ into the two posterior cerebral arteries (PCA)

Smaller arteries of basilar artery are called pontine arteries because they supply the ____.

Occlusion of the internal auditory artery can lead to _______ and ipsilateral deafness

The posterior cerebral artery anterior temporal, distributes to the _____. Medial occipital it supplies the ______ cortex!

Answer 5

Bifurcates

Pons

Vertigo

Uncus. Visual

Question 6

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Answer 6

Internal. Vertebral-basilar

Question 7

(LO) List the 2 major arterial systems that supply the brain. Describe how these system merge at the Circle of Willis. In normal conditions, is there significant collateral flow from one system to the other through the Circle of Willis?

Answer 7

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Question 8

(LO) What are the areas of supply of each system? e.g. cerebrum, brainstem, cerebellum, spinal cord.

Answer 8

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Question 9

(LO) Describe the parts and course of the internal carotid artery (ICA), from outside the skull, through the skull, to its entry into the subarachnoid space. What foramen does it enter the skull through? What bone? List the main branches of the ICA.

Answer 9

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Question 10

(LO) Describe the path of the anterior cerebral artery (ACA), starting at the Circle of Willis and its path over the cerebral cortex. Describe the vascular territory served by the anterior cerebral artery. What are the major branches of the anterior cerebral artery?

Answer 10

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Question 11

(LO) Describe the path of the middle cerebral artery (MCA), starting at the Circle of Willis and its path over the cerebral cortex. Describe its vascular territory. What are the major branches of the middle cerebral artery?

Answer 11

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Question 12

(LO) How many spinal arteries are there and what are their names?

Answer 12

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Question 13

(LO) What foramen do the vertebral arteries enter the skull through? What are its major branches?

Answer 13

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Question 14

Describe the major branches of the basilar artery.

Answer 14

Pppp

Question 15

(LO) Which artery gives rise to the posterior inferior cerebellar artery (PICA)? Describe the area of supply of the posterior inferior cerebellar artery (PICA)?

Answer 15

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Question 16

(LO) What artery gives rise to the anterior inferior cerebellar artery (PICA)? Describe the area of supply of the anterior inferior cerebellar artery (AICA)?

Answer 16

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Question 17

(LO) What artery gives rise to the anterior superior cerebellar artery (PICA)? Describe the area of supply of the anterior superior cerebellar artery (SCA)?

Answer 17

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Question 18

(LO) What artery gives rise to the superior cerebellar artery (PICA)? Describe the area of supply of the anterior superior cerebellar artery (PICA)?

Answer 18

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Question 19

What artery gives rise to the posterior cerebral artery? What arteries anastomose with posterior cerebral artery? Describe the vascular territory of the PCA. Describe the major branches of the posterior cerebral artery.

Answer 19

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Question 20

Name the main sinuses of the brain. What major vein do the sinuses eventually drain to? Hint: it exits the skull. For each major sinus, describe its complete course to the point where drainage leaves the skull. If applicable, include a description of which dural structure that sinus is contained in. What tissue forms the sinuses? What is the difference between a sinus and a vein? These questions may require combining info from Gross Neuroanatomy and the Blood Supply lectures.

Answer 20

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