heart structure Flashcards
right side of ❤️ receives
deoxygenated blood from rest of the body
right side of ❤️ receives
oxygenated blood from lungs
func of coronary arteries
supplies oxy blood, amino acids, glucose to cardiac muscles
tricuspid valve is located on _ side
right
bicuspid valve is located on _ side
left
atria are located on (top/bottom)
top
ventricles are located on (top/bottom)
bottom
left ventricle vs right ventricle (struct & func)
left: thicker walls to create h.b.p to pump blood to rest of body
right: thinner walls, lower pressure to pump to lungs (lungs close to ❤️)
how does oxy blood travel from lungs to rest
- lungs
- pulmonary vein into ❤️
- left atrium
- bi valve
- lv
- aorta out of ❤️
- rest
how does deoxy blood travel from rest to lungs
- rest
- vena cavae into ❤️
- ra
- tri valve
- rv
- pulmonary arteries out of ❤️
- lungs
def systole
period of contraction
def diastole
period of relaxation
1 heartbeat lasts for
approx 0.8s
“lub” & “dub” sounds produced by
valves opening & closing (bitri & semilunar)
series of events before “lub”
- a & v relax
- blood fills a
- a systole
- blood flows from a to v (BITRI VALVES OPEN)
- v systole, a diastole
- BITRI VALVES CLOSE “LUB”