Cardiovascular - Flow Of Blood Flashcards
What are the four chambers called?
Left & right atrium, left & right ventricle
Which chambers are low pressure? Why?
Right atrium and ventricle because they only have to push blood to lungs
Which ones are high pressure? Why?
Left ventricle and atrium because blood has to be pushed throughout body
What do valves and septum separate?
Valves - LA from LV and RA from RV
Septum - LA from RA and LV from LA
What are the two septums called? What do they separate?
Interventricular septum - separates the ventricles
Interatrial septum - separates the atria
How many valves are there?
Four (two AV valves and two semilunar valves)
Where are atrioventricular valves found? What are they called? Where does it allow blood to flow?
Between atria and ventricles
Allows flow into ventricles
Tricuspid valve (RA to RV)
Mitral valve (LA to LV)
What sound does AV valves make?
First heart sound (lub)
Where are semilunar valves found? What are they called?
Controls flow of blood out of ventricles
Pulmonary valve (deoxygenated blood flows into lungs)
Aortic valve (oxygenated blood flows into aorta)
What sound does semilunar valves make?
Second heart sound (dub)
What are the four main vessels called?
Aorta, vena cava (2), pulmonary trunk(2), pulmonary veins (4)
Does aorta carry oxygenated or deoxygenated blood? Where does it carry blood from?
Oxygenated blood flows from left ventricle and aorta pumps into rest of body
How many pulmonary veins? Oxygenated or deoxygenated blood? Blood flows from where into what?
4 (left and right pulmonary veins)
Oxygenated blood flows from lungs into left atrium via pulmonary veins
How many pulmonary arteries? Deoxygenated or oxygenated blood? Blood flows from where to what?
2
Carries deoxygenated blood from right ventricle to lungs
How many vena cava? Deoxygenated or oxygenated blood? Blood flows from where?
2 (Superior and inferior vena cava)
Carries deoxygenated blood from body to right atrium
