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BIOL 313 - Heart Questions and Correct
Answers/ Latest Update / Already Graded
what is the size and function of the heart?
Ans: fist-sized
suction and pressure
double pump
what are the 4 chambers of the heart?
Ans: 2 small atria
2 large ventricles
what are the 2 circuits?
Ans: pulmonary and systemic
what are the 4 one-way valves?
Ans: tricuspid AV
bicuspid AV
aortic semilunar
pulmonary semilunar
All rights reserved © 2025/ 2026 |
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what direction does the artery vs. vein pump blood from the heart?
Ans: artery = away
vein = toward
what does the right pump do?
Ans: receives depleted blood from systemic circuit and pumps
it to pulmonary circuit
what does the left pump do?
Ans: receives oxygenated blood from pulmonary circuit and
pump it to systemic circuit
what does each circuit have?
Ans: 1 pump
2 chambers
what are ventricles to atrium?
Ans: ventricles bigger than atrium
what is the ventricle vs atrium used for?
All rights reserved © 2025/ 2026 |
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Ans: ventricle - pump
atrium - collecting
what is systole?
Ans: heart chamber contraction
what is diastole?
Ans: heart chamber relaxation
what is the sound of the heart coming from?
Ans: opening and closing of valves
- louder bigger the valve
what does the heart wall consist of?
Ans: endocardium, myocardium, and epicardium
what is endocardium? location?
Ans: thin mesothelium continuous with interior of blood
vessels
- inner lining of heart
All rights reserved © 2025/ 2026 |
BIOL 313 - Heart Questions and Correct
Answers/ Latest Update / Already Graded
what is the size and function of the heart?
Ans: fist-sized
suction and pressure
double pump
what are the 4 chambers of the heart?
Ans: 2 small atria
2 large ventricles
what are the 2 circuits?
Ans: pulmonary and systemic
what are the 4 one-way valves?
Ans: tricuspid AV
bicuspid AV
aortic semilunar
pulmonary semilunar
All rights reserved © 2025/ 2026 |
, Page |2
what direction does the artery vs. vein pump blood from the heart?
Ans: artery = away
vein = toward
what does the right pump do?
Ans: receives depleted blood from systemic circuit and pumps
it to pulmonary circuit
what does the left pump do?
Ans: receives oxygenated blood from pulmonary circuit and
pump it to systemic circuit
what does each circuit have?
Ans: 1 pump
2 chambers
what are ventricles to atrium?
Ans: ventricles bigger than atrium
what is the ventricle vs atrium used for?
All rights reserved © 2025/ 2026 |
, Page |3
Ans: ventricle - pump
atrium - collecting
what is systole?
Ans: heart chamber contraction
what is diastole?
Ans: heart chamber relaxation
what is the sound of the heart coming from?
Ans: opening and closing of valves
- louder bigger the valve
what does the heart wall consist of?
Ans: endocardium, myocardium, and epicardium
what is endocardium? location?
Ans: thin mesothelium continuous with interior of blood
vessels
- inner lining of heart
All rights reserved © 2025/ 2026 |
