Lecture 7: Coronary Cerebral Blood Flow Flashcards
1
Q
Is there a high or low density of coronary capillaries?
A
High!
2
Q
Is metabolic vasoconstriction or vasodilatation the dominant controlling factor of the coronary blood blow?
A
Vasodilatation.
3
Q
Do arteries or arterioles receive richer autonomic innervation?
A
Arteries.
4
Q
Does 5HT act as a powerful vasoconstrictor or vasodilator in cerebral arteries?
A
Vasoconstrictor.
5
Q
What does the Circle of Willis ensure?
A
That even if there is a blockage to one internal carotid artery then the flow is not stopped.
