Anatomy Topic 2 Case 8 Flashcards
Identify the two pairs of vessels from which the brain receives its arterial supply
- Vertebral arteries
- Internal carotid arteries
What is the Circle of Willis?
- Cerebral arterial circle
- Composed of vertebral internal carotid and vertebral arteries
The vertebral arteries arise from which arteries?
- Subclavian arteries
Identify four branches of the vertebral arteries prior to their anastomoses
- Segmental medullary arteries
- Anterior spinal artery
- Posterior spinal artery
- Posterior inferior cerebellar artery
Where do the vertebral arteries enter the cranial cavity?
- Through the foramen magnum
The two vertebral arteries fuse to form which artery?
- Basilar artery
The internal carotid arteries arise from which arteries?
- Common carotid arteries
Where do the internal carotid arteries enter the cranial cavity?
- Carotid canal
Identify four arteries given off by the internal carotid artery
- Ophthalmic artery
- Posterior communicating artery
- Middle cerebral artery
- Anterior cerebral artery
Identify four arteries given off by the basilar artery
- Anterior inferior cerebellar arteries
- Pontine arteries
- Superior cerebellar arteries
- Posterior cerebral arteries
Which arteries are involved in the anatomic interconnection of the circle of Willis
- Anterior communicating artery
- Two posterior communicating arteries
Identify the arterial supply of the kidneys
- Renal arteries
- Branches of the abdominal aorta
At which vertebral level do the renal arteries arise?
- LI and LII
How do the left and right renal arteries differ from one another?
- Left renal artery arises a little higher
- Right renal artery is longer and passes posterior to the inferior vena cava
The renal arteries divide into how many segmental arteries?
- Five
Which arteries arise from the segmental arteries
- Lobar arteries
- One for each renal pyramid
Which arteries arise from the lobar arteries?
- 2 or 3 interlobular arteries
- Which run toward the cortex of each renal pyramid
Which arteries arise from the interlobular arteries?
- Arcuate arteries
- Which pass over the bases of the pyramids
Which arterioles arise as branches of the interlobular arteries?
- Afferent glomerular arterioles
The left renal vein runs anterior to which structure?
- Abdominal aorta
The left renal vein runs posterior to which structure?
- Superior mesenteric artery
