Test 4 Flashcards
In the cranium, what do the superior petrosal sinuses empty into?
Sigmoid sinus
What best describes the terminal end of the internal carotid artery?
At the bifurcation into the anterior and middle cerebral arteries
The anterior communicating artery allows blood to flow between:
One anterior cerebral artery and the other
The brain, the eye, and pituitary receive their blood supply from the _______ artery
Internal carotid artery
The inferior Sagittal sinus becomes the (blank) after its Union with the (blank)
Becomes the
straight sinus
After it’s Union with the
Great vein of Galen
Name all cerebral and communicating arteries involved in the circle of Willis: (4)
Anterior cerebral artery
Middle cerebral artery
Posterior cerebral artery
Anterior communicating artery
Posterior communicating artery
(Note: there is no middle communicating artery in c-o-w)
The posterior communicating artery allows blood to flow between the (blank) and the (blank)
The anterior and posterior circulation sections
What vessel normally serves as the main supply of blood to the lateral surface of the frontal and parietal lobes of the brain ?
Middle cerebral artery
What is the normal route blood takes to leave the confluence of sinuses?
Via the transverse sinus
The circle of Willis is a major source of (blank) circulation for the (blank)
It’s a source of collateral circulation for the brain
The circle of Willis lies at the base of the (blank)
Cerebral hemispheres
The circle of Willis has (blank) & (blank) circulation components
Anterior and posterior circulation components
The circle of Willis has a (blank) axis
Horizontal
The internal carotid artery has a (blank) resistance waveform
Low resistance
The external carotid artery has a (blank) resistance waveform
High resistance
What is the name of the first branch off of the external carotid artery?
Superior thyroid artery
What two vessels join to form the superior vena cava?
Right and left brachiocephalic veins
The superior sinus lies in the (blank) axis
Superior
The transverse sinus lies on the (blank) axis
Transverse
The vertebral arteries join to form the (blank)
Basilar artery
The pontine arteries feed the (blank)
Pons
What is the third branch off of the aortic arch?
Left subclavian artery
What is the second branch off of the aortic arch?
Left common carotid artery