UCLA Phlebotomy Exam 1 & Exam 2| STUDY BUNDLE
SET (2024/ 2025) Questions and Verified Answers|
100% Correct| Grade A
How big is the heart - ANSWERsize of a mans fist
how many times does the heart beat per minute? per day? - ANSWER60-80 per
minute
100,000 per day
Four chambers of the heart - ANSWERright atrium, right ventricle, left atrium, left
ventricle
The heart - ANSWERlocated in the thoracic cavity between lungs
-muscular pump made of cardiac muscle fibers
septum - ANSWERwall that separates the heart into right and left sides
pericardium - ANSWERouter double walled sac in the heart that prevents friction
allowing it to beat fast
what are the three layers of the heart - ANSWERepicardium, myocardium,
endocardium
endocardium - ANSWERInner layer of the heart
Myocardium - ANSWERmuscular, middle layer of the heart
epicardium - ANSWERouter layer of the heart
atria - ANSWERreceives blood into the heart from the body
-contraction pushes blood into ventricles
-left and right atria separated by interatrial septum
right atrium - ANSWERfills with deoxygenated blood from superior (arms) and
inferior (feet) vena cava
left atrium - ANSWERfills with oxygenated blood from the pulmonary vein
Ventricles - ANSWERreceives blood from atria
-contraction pushes blood out of the heart
-left and right ventricles separated by interventricular septum
right ventricle - ANSWERpushes deoxygenated blood through pulmonary artery
left ventricle - ANSWERpushes oxygenated blood through the aorta
, which ventricle is bigger/thicker - ANSWERleft because it has to pump blood to the
rest of the body
cardiac cyle - ANSWERthe complete sequence of events in heart from the beginning
of one beat to the beginning of the following beat
-includes systole and diastole
cardiac output - ANSWERthe volume of blood ejected from the left ventricle in 1
minute (approx. 5 liters)
stroke volume - ANSWERthe volume of blood pumped from the left ventricle in one
beat
where does the right atrium pump blood to? - ANSWERinto the right ventricle
where does the right ventricle receive blood from? - ANSWERright atrium
where does the left atrium pump blood to? - ANSWERleft ventricle
where does the left ventricle receive blood from? - ANSWERleft atrium
How many heart valves are there? - ANSWER4 tricuspid, bicuspid, pulmonary
semilunar, aortic semilunar
tricuspid valve - ANSWERright atrioventricular valve
-between right atrium and right ventricle
Right AV valve function - ANSWERcloses when right ventricle contracts and prevents
blood from flowing back into right atrium
mitral(bicuspid) valve - ANSWERleft atrioventricular valve
-between left atrium and left ventricle
Left AV valve function - ANSWERcloses when the left ventricle contracts and
prevents blood from flowing back into left atrium
Pulmonary semilunar valve - ANSWERbetween right ventricle and pulmonary artery
-at the entrance of pulmonary artery
right semilunar valve function - ANSWERcloses when the right ventricle relaxes and
prevents blood from flowing back to right ventricle
aortic semilunar valve - ANSWERbetween left ventricle and aorta
-at entrance of aorta
SET (2024/ 2025) Questions and Verified Answers|
100% Correct| Grade A
How big is the heart - ANSWERsize of a mans fist
how many times does the heart beat per minute? per day? - ANSWER60-80 per
minute
100,000 per day
Four chambers of the heart - ANSWERright atrium, right ventricle, left atrium, left
ventricle
The heart - ANSWERlocated in the thoracic cavity between lungs
-muscular pump made of cardiac muscle fibers
septum - ANSWERwall that separates the heart into right and left sides
pericardium - ANSWERouter double walled sac in the heart that prevents friction
allowing it to beat fast
what are the three layers of the heart - ANSWERepicardium, myocardium,
endocardium
endocardium - ANSWERInner layer of the heart
Myocardium - ANSWERmuscular, middle layer of the heart
epicardium - ANSWERouter layer of the heart
atria - ANSWERreceives blood into the heart from the body
-contraction pushes blood into ventricles
-left and right atria separated by interatrial septum
right atrium - ANSWERfills with deoxygenated blood from superior (arms) and
inferior (feet) vena cava
left atrium - ANSWERfills with oxygenated blood from the pulmonary vein
Ventricles - ANSWERreceives blood from atria
-contraction pushes blood out of the heart
-left and right ventricles separated by interventricular septum
right ventricle - ANSWERpushes deoxygenated blood through pulmonary artery
left ventricle - ANSWERpushes oxygenated blood through the aorta
, which ventricle is bigger/thicker - ANSWERleft because it has to pump blood to the
rest of the body
cardiac cyle - ANSWERthe complete sequence of events in heart from the beginning
of one beat to the beginning of the following beat
-includes systole and diastole
cardiac output - ANSWERthe volume of blood ejected from the left ventricle in 1
minute (approx. 5 liters)
stroke volume - ANSWERthe volume of blood pumped from the left ventricle in one
beat
where does the right atrium pump blood to? - ANSWERinto the right ventricle
where does the right ventricle receive blood from? - ANSWERright atrium
where does the left atrium pump blood to? - ANSWERleft ventricle
where does the left ventricle receive blood from? - ANSWERleft atrium
How many heart valves are there? - ANSWER4 tricuspid, bicuspid, pulmonary
semilunar, aortic semilunar
tricuspid valve - ANSWERright atrioventricular valve
-between right atrium and right ventricle
Right AV valve function - ANSWERcloses when right ventricle contracts and prevents
blood from flowing back into right atrium
mitral(bicuspid) valve - ANSWERleft atrioventricular valve
-between left atrium and left ventricle
Left AV valve function - ANSWERcloses when the left ventricle contracts and
prevents blood from flowing back into left atrium
Pulmonary semilunar valve - ANSWERbetween right ventricle and pulmonary artery
-at the entrance of pulmonary artery
right semilunar valve function - ANSWERcloses when the right ventricle relaxes and
prevents blood from flowing back to right ventricle
aortic semilunar valve - ANSWERbetween left ventricle and aorta
-at entrance of aorta
