Quiz 4 Flashcards
Amount of pressure exerted on the walls of arteries
Pulse pressure
Amount of work the heart does
Cardiac output
How do you find cardiac output?
Stroke volume x heart rate
How do you find pulse pressure?
systolic - diastolic
How do you find mean arterial pressure?
1/3 (systolic - diastolic) + diastolic
Cardiac output x total peripheral resistance
What happens to TPR as length increases?
increases
What happens to TPR as viscosity increases?
increases
What happens to TPR as diameter increases?
decreases
What happens to TPR as cardiac output increases and resistance stays the same?
TPR decreases
What happens to venous return as stroke volume increases?
increases
what happens to venous return as cardiac output increases?
increases
what happens to cardiac output as blood pressure decreases?
decreases
What happens to heart rate from sympathetic system?
increases
What happens to stroke volume from sympathetic system?
increases
what happens to cardiac output from sympathetic system?
increases
what happens to blood vessel diameter from sympathetic system?
vasoconstriction
what happens to TPR and MAP from sympathetic system?
increase
What happens to heart rate from parasympathetic system?
decrease
what happens to stroke volume from parasympathetic system?
decrease
what happens to cardiac output from parasympathetic system?
decrease
What happens to the blood vessel from parasympathetic system?
vasodilation
What happens to TPR and MAP from parasympathetic system?
decrease
Where are baroreceptors located?
carotid sinus
sends messages to the nervous system
baroreceptors
