the cardiovascular system Flashcards
vena cava
transport deoxygenated blood from the body to the right atrium
right atrium
the top chamber of the heart that holds deoxygenated blood
tricuspid valve
stops blood flowing back into the right atrium
right ventricle
bottom chamber of the heart that holds deoxygenated blood
semi-lunar valve
stops blood flowing back into the right ventricle
pulmonary artery
transports deoxygenated blood from the heart to the lungs
pulmonary vein
transports oxygenated blood from the lungs to the heart
left atrium
top chamber of the heart that holds oxygenated blood
bicuspid valve
stops blood flowing back into the left atrium
left ventricle
bottom chamber that holds oxygenated blood
semi-lunar valve
stops blood flowing back into left ventricle
aorta
transports oxygenated blood to the rest of the body
septum
a wall that separates the left from the right side of the heart
coronary arteries
arteries that supply blood to the heart
differences between arteries and veins
arteries:
- carry blood away from the heart to the tissues of the body
- thick muscular walls
- elastic walls
- contain blood under high pressure
- usually contain oxygenated blood (except pulmonary artery)
- do NOT contain valves
veins:
- carry blood towards the heart from tissues of the body
- thin and less muscular walls
- less elastic walls
- contain blood under low pressure
- usually contain deoxygenated blood (except pulmonary vein)
- contain valves
