ch42B Flashcards
(9 cards)
1
Q
open circulatory system
A
all the fluid is combinded and pressure is much lower then a closed system
2
Q
closed circulatory system
A
allows for more rapid O2 delivery which is a benefit in animals with a high metabolic rate
3
Q
closed 4 benefits
A
continuous circuit
high pressure
faster flow rate
directed
4
Q
ventricles
A
pump blood
5
Q
artia
A
receive blood
6
Q
left
A
blood returns from lungs (via pulmanary veins) then O2 rich is pumped to body (aorta)
(systemic)
7
Q
right
A
blood returns from body (superior and inferior vema cava)
then O2 poor blood is pumped to lungs(pulmonary artery)
(pulmonary)
8
Q
purkinji fibers
A
work with the av node to get ventricales to contract
9
Q
baroreceptors
A
can tell the heart to work harder when low Bp is detected cardiac output, arterial changes, vein constricted
