Neuro: Lab 2 - Arterial Supply To Brain

Front 1

Path of vertebral arteries to brain?

Back 1

- Branch from subclavian a.
- Enter through foramen magnum
- Run along ventral surface of spinal cord and medulla

Front 2

Where do vertebral arteries anastomose at?

Back 2

Near junction of medulla and pons --> Basilar a.

Front 3

Branches of Vertebral Arteries?

Back 3

- Anterior Spinal A.
- Posterior Inferior Cerebellar Arteries (PICA)

Front 4

What medial branches of vertebral artery anastomose on midline? Supplies?

Back 4

Anterior Spinal Artery - supplies medial medulla (medullary pyramids) and anterior 2/3 of cervical spinal cord

Front 5

What branches off of vertebral artery laterally? Supplies?

Back 5

Posterior Inferior Cerebellar Arteries (PICA) - branch inferior to anterior spinal artery - supplies inferior surface of cerebellum and lateral part of rostral medulla

Front 6

Regions of brain supplied by vertebral arteries and branches?

Back 6

- Cervical spinal cord (anterior 2/3 by ASA, posterior 1/3 by PSA)
- Medulla (anterior and medial areas including medullary pyramids)
- Medulla (lateral by PICA)
- Inferior surface of cerebellum (by PICA)

Front 7

Across what structure does Basilar artery run?

Back 7

Ventral surface of pons (at upper border bifurcates to form two posterior cerebral arteries)

Front 8

Branches of Basilar Artery?

Back 8

- Posterior Cerebral aa (PCA)
- Superior Cerebellar aa (SCA)
- Pontine aa
- Labyrinthine / Internal acoustic aa
- Anterior inferior cerebellar aa (AICA)

Front 9

Basilar artery supplies?

Back 9

- Thalamus
- Midbrain
- Pons

Front 10

Arteries surrounding CN III?

Back 10

- Anteriorly: Posterior Cerebral aa.
- Posteriorly: Superior Cerebellar aa.

Front 11

Posterior Cerebral A. supply?

Back 11

- Midbrain
- Posterior part of brain (occipital lobes)
- Thalamus
- Globus Pallidus

Front 12

Superior Cerebellar A. supply?

Back 12

- Superior surface of cerebellum
- Parts of midbrain
- Lateral part of middle pons

Front 13

Where do Labyrinthine / Internal Acoustic arteries branch from? Supply?

Back 13

- Branch from lateral aspect of basilar a.
- Inferior to pontine arteries, yet superior to AICA
- Supply inner ear

Front 14

Where do AICA branch? Supply?

Back 14

- Lateral aspect of basilar artery just superior to anastomoses of vertebral aa.
- Inferior surface of cerebellum, lateral part of caudal pons

Front 15

Regions of brains supplied by Basilar A. and its branches?

Back 15

- Cerebellum
- Midbrain
- Pons
- Thalamus
- Visual Cortex (Occipital lobe)
- Inner ear

Front 16

Branches of Internal Carotid A.?

Back 16

- Anterior Cerebral aa (ACA)
- Middle Cerebral aa (MCA)
- Anterior Communicating a
- Posterior Communicating a

Front 17

Branches of Anterior Cerebral aa?

Back 17

- Pericollasal artery (atop corpus callossum in callosal sulcus)
- Callosomarginal artery (follows cingulate sulcus)

Front 18

Anterior cerebral aa. supply?

Back 18

- Medial aspect of brain (frontal and parietal lobes, cingulate gyrus)
- Perforating branches supply basal ganglia

Front 19

Middle Cerebral aa. supply?

Back 19

Lateral aspect of brain (frontal lobe, parietal lobe, insula, temporal pole, perforating branches supply basal ganglia and internal capsule)

Front 20

Posterior communicating aa. supply?

Back 20

- Optic chiasm
- Parahippocampal gyrus
- Interpeduncular region
- Crus cerebri
- Thalamus

Front 21

Which artery runs along superior surface of corpus callosum in callosal sulcus?

Back 21

Pericallosal a. (from ACA)

Front 22

Which artery follows the cingulate sulcus?

Back 22

Callosomarginal a. (from ACA)

Front 23

Before the vertebral arteries enter the cranium, what openings do they pass through in cervical vertebrae?

Back 23

Transverse Foramina

Front 24

CN III emerges between what arteries?

Back 24

Posterior Cerebral a.
Superior Cerebellar a.

Front 25

Which vessel supplies the lateral surface of the cerebrum including the primary motor and primary sensory cortices?

Back 25

Middle cerebral artery

Front 26

Anterior Inferior Cerebellar a. (AICA) is located near which CN?

Back 26

CN VI (Abducent)

Front 27

Rupture of a cerebral artery from a berry aneurysm leads to what type of hemorrhage?

Back 27

Subarachnoid