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UCLA Phlebotomy Exam 4 EXAM QUESTIONS AND ANSWERS 100 % PASS A+ GRADE
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UCLA Phlebotomy Exam 4 EXAM QUESTIONS AND ANSWERS 100 % PASS A+ GRADE
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UCLA Phlebotomy Exam 4 EXAM 2024-2025 QUESTIONS ANDANSWERS 100 % PASS A+ GRADE
functions of blood - answer>>-transportation, -regulation,
-disperse of nutrients
-hemostasis
-temp regulation
how many times does the heart beat per minute? per day? - answer>>60-80 per minute
100,000 per day
how much blood is in the average adult female - answer>>4-5 liters
Four chambers of the heart - answer>>right atrium, right ventricle, left atrium, left ventricle
The heart - answer>>located in the thoracic cavity between lungs
-muscular pump made of cardiac muscle fibers
how much blood is in the average adult male - answer>>5-6 L
what are the three layers of the heart - answer>>epicardium, myocardium, endocardium
How big is the heart - answer>>size of a mans fist
whole blood is composed of - answer>>55% plasma and 45% cells
,plasma - answer>>liquid portion of blood without cells
-makes up 55% of blood
which ventricle is bigger/thicker - answer>>left because it has to pump blood to the rest of the body
cardiac cyle - answer>>the complete sequence of events in heart from the beginning of one beat to the
beginning of the following beat
-includes systole and diastole
where does the right ventricle receive blood from? - answer>>right atrium
where does the left atrium pump blood to? - answer>>left ventricle
where does the left ventricle receive blood from? - answer>>left atrium
How many heart valves are there? - answer>>4 tricuspid, bicuspid, pulmonary semilunar, aortic
semilunar
cardiac output - answer>>the volume of blood ejected from the left ventricle in 1 minute (approx. 5
liters)
stroke volume - answer>>the volume of blood pumped from the left ventricle in one beat
where does the right atrium pump blood to? - answer>>into the right ventricle
septum - answer>>wall that separates the heart into right and left sides
, pericardium - answer>>outer double walled sac in the heart that prevents friction allowing it to beat fast
endocardium - answer>>Inner layer of the heart
Myocardium - answer>>muscular, middle layer of the heart
epicardium - answer>>outer layer of the heart
atria - answer>>receives blood into the heart from the body
-contraction pushes blood into ventricles
-left and right atria separated by interatrial septum
right atrium - answer>>fills with deoxygenated blood from superior (arms) and inferior (feet) vena cava
left atrium - answer>>fills with oxygenated blood from the pulmonary vein
Ventricles - answer>>receives blood from atria
-contraction pushes blood out of the heart
-left and right ventricles separated by interventricular septum
right ventricle - answer>>pushes deoxygenated blood through pulmonary artery
left ventricle - answer>>pushes oxygenated blood through the aorta
tricuspid valve - answer>>right atrioventricular valve
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