Meninges and Arteries (Part 2)

Question 1

Describe the appearance of subarachnoid hemorrhages.

Answer 1

The leaking blood assumes a tree-like appearance, while following the sulci.

Question 2

Intracerebral hemorrhages reflect rupture of ___, such as the ___, which branch from the ____, supplying the internal capsule and basal ganglia.

Answer 2

• intraparenchymal branches of subarachnoid arteries
• lenticulostriate arteries
• middle cerebral artery

Question 3

The right common carotid artery arises from the ____, and the left arises from the ___.

Answer 3

• brachiocephalic trunk

- aortic arch

Question 4

The internal carotid artery emits the…

Answer 4

ophthalmic and posterior communicating arteries.

Question 5

The internal carotid artery divides, terminating as the…

Answer 5

anterior and middle cerebral arteries

Question 6

The ___ arteries are the first branches of the subclavian arteries.

Answer 6

vertebral

Question 7

The vertebral arteries ascend through the transverse foramina of the upper 6 cervical vertebrae and enter the skull through the ___.

Answer 7

foramen magnum

Question 8

The vertebral arteries emit the ___, which usually spawn the posterior spinal arteries. The vertebral arteries then emit the ___ artery before unifying to form the ___ artery.

Answer 8

• posterior inferior cerebellar arteries (PICA)
• anterior spinal
• basilar

Question 9

The basilar artery gives rise to the ___.

Answer 9

-anterior inferior cerebellar arteries (AICA).

Question 10

The ____ arteries arise from the basilar artery, just prior to its bifurcation into the two posterior ___ arteries near the caudal midbrain.

Answer 10

• superior cerebellar

- cerebral

Question 11

The ___ is formed by a group of arteries that surround the optic chiasm, optic tract, mammillary bodies and the remaining ventral hypothalamus. Their perforating branches supply deep structures.

Answer 11

arterial circle of Willis

Question 12

___and ___ arteries are the terminal divisions of the internal carotid artery, which reaches the ventral surface of the brain lateral to the optic chiasm.

Answer 12

• Anterior

- middle cerebral

Question 13

Arising from the junction of the internal carotid and middle cerebral arteries is the ___ artery, which will join the vertebral arterial circulation.

Answer 13

-posterior communicating

Question 14

The ___ artery runs medially and anterior to the optic chiasm.

Answer 14

-anterior cerebral

Question 15

Bridging the two anterior cerebral arteries is the ___ artery

Answer 15

-anterior communicating

Question 16

Major branches of the ___ arteries pass to the medial aspect of the frontal and parietal lobes, anterior perforated substance, septum pellucidum, and corpus callosum (often feeding all but the most posterior zones of this commissure).

Answer 16

-anterior cerebral

Question 17

___ arteries (early branches of the anterior cerebral artery) supply the basal ganglia and anterior limb of the internal capsule.

Answer 17

-Striate

Question 18

The ___ artery extends laterally in lateral fissure over the insula, sending branches to the lateral aspect of frontal, temporal, and parietal lobes.

Answer 18

-middle cerebral

Question 19

During its early course, the middle cerebral artery emits the ___ arteries, which target the basal ganglia and the internal capsule.

Answer 19

-lenticulostriate

Question 20

These arteries are particularly vulnerable to rupture and are a major source of intracerebral (periventricular) hemorrhage.

Answer 20

lenticulostriate arteries

Question 21

The ___ arteries are the terminal branches of the basilar artery.

Answer 21

-posterior cerebral

Question 22

The posterior cerebral arteries receive the ___ arteries from the internal carotid.

Answer 22

-posterior communicating

Question 23

The ___ arteries travel laterally and dorsally around the midbrain to reach the thalamus and third ventricle.

Answer 23

• posterior cerebral