Blood vessels Flashcards
1
Q
Receptors present in the blood vessels
A
A1, B2
2
Q
Function of A1 receptors in blood vessels
A
Vasoconstriction
3
Q
Function of B2 receptors in the blood vessels
A
Vasodilation
4
Q
Location of B2 receptors in blood vessels
A
Liver, Skeletal muscle, Heart
5
Q
Describe capacitance and its use
A
Ability of vessels to distend, particularly veins, allowing for changes in cardiac output
6
Q
Describe what generates a pulse
A
Elastic recoil of the blood vessels during diastole
7
Q
Define pulse pressure
A
Difference between diastolic and sytolic pressure
8
Q
Response of pulmonary arteries to hypoxia
A
Vasoconstriction
9
Q
Describe the response of cerebral arteries to pressure
A
Constrict at high pressure and dilate at low pressure
10
Q
Describe the response of cerebral arteries to hypocapnea
A
Vasoconstriction
