BPK 142 - Final Lab Exam Review
questions well answered to pass
What is the atria? - correct answer ✔✔- upper two cavities of the heart -- passes blood to the
ventricles
- left atrium = receives oxygenated blood from veins
- right atrium receives deoxygenated blood from pulmonary vein
Which vessels enter or exit the atria? - correct answer ✔✔- right atrium -- receives
deoxygenated blood from superior vena cava, inferior vena cava
- left atrium = receives oxygenated blood from the pulmonary vein
What are the ventricles? - correct answer ✔✔- large lower chambers that collect + expel blood
received from one of the atria
- right ventricle = receives blood from the right atrium
- left ventricle = receives blood from the left atrium
What vessels enter or exit the ventricles? - correct answer ✔✔- right ventricle = pulmonary
artery -- sends blood to the lungs
- left ventricle = aorta/aortic arch -- pumps blood to rest of the body
Describe the pathway of blood through the heart - correct answer ✔✔1. Blood enters the right
atrium from the superior and inferior vena cava,
and the coronary sinus -- carries deoxygenated blood
2. From right atrium, it goes through the tricuspid valve to the right ventricle.
3. From the right ventricle, it goes through the pulmonary semilunar valves to
, the pulmonary trunk
4. From the pulmonary trunk it moves into the right and left pulmonary
arteries to the lungs.
5. From the lungs, oxygenated blood is returned to the heart through the
pulmonary veins.
6. From the pulmonary veins, blood flows into the left atrium.
7. From the left atrium, blood flows through the bicuspid (mitral) valve into
the left ventricle.
8. From the left ventricle, it goes through the aortic semilunar valves into the
ascending aorta.
9. Blood is distributed to the rest of the body (systemic circulation) from the
aorta.
Discuss the importance of the elasticity and contractility of the arteries - correct answer ✔✔-
elasticity = allows vessels to respond to + accommodate changes in blood pressure that comes
from the pumping of the heart
- contractility = allows vasoconstriction + vasodilation -- comes from signals in the nervous
system
Explain how blood returns to the right atrium. - correct answer ✔✔- assisted by skeletal-muscle
pump + thoracic pump -- breathing
- squeeze veins that run through them
- veins have one-way valves -- pushes blood through valve + close to prevent backflow
Why should one "cool down" after
vigorous exercise rather than stop abruptly? - correct answer ✔✔- strenuous activity causes
blood vessels in legs to expand -- brings more blood to legs + feet
- heartbeat slows abruptly if no cool down portion
questions well answered to pass
What is the atria? - correct answer ✔✔- upper two cavities of the heart -- passes blood to the
ventricles
- left atrium = receives oxygenated blood from veins
- right atrium receives deoxygenated blood from pulmonary vein
Which vessels enter or exit the atria? - correct answer ✔✔- right atrium -- receives
deoxygenated blood from superior vena cava, inferior vena cava
- left atrium = receives oxygenated blood from the pulmonary vein
What are the ventricles? - correct answer ✔✔- large lower chambers that collect + expel blood
received from one of the atria
- right ventricle = receives blood from the right atrium
- left ventricle = receives blood from the left atrium
What vessels enter or exit the ventricles? - correct answer ✔✔- right ventricle = pulmonary
artery -- sends blood to the lungs
- left ventricle = aorta/aortic arch -- pumps blood to rest of the body
Describe the pathway of blood through the heart - correct answer ✔✔1. Blood enters the right
atrium from the superior and inferior vena cava,
and the coronary sinus -- carries deoxygenated blood
2. From right atrium, it goes through the tricuspid valve to the right ventricle.
3. From the right ventricle, it goes through the pulmonary semilunar valves to
, the pulmonary trunk
4. From the pulmonary trunk it moves into the right and left pulmonary
arteries to the lungs.
5. From the lungs, oxygenated blood is returned to the heart through the
pulmonary veins.
6. From the pulmonary veins, blood flows into the left atrium.
7. From the left atrium, blood flows through the bicuspid (mitral) valve into
the left ventricle.
8. From the left ventricle, it goes through the aortic semilunar valves into the
ascending aorta.
9. Blood is distributed to the rest of the body (systemic circulation) from the
aorta.
Discuss the importance of the elasticity and contractility of the arteries - correct answer ✔✔-
elasticity = allows vessels to respond to + accommodate changes in blood pressure that comes
from the pumping of the heart
- contractility = allows vasoconstriction + vasodilation -- comes from signals in the nervous
system
Explain how blood returns to the right atrium. - correct answer ✔✔- assisted by skeletal-muscle
pump + thoracic pump -- breathing
- squeeze veins that run through them
- veins have one-way valves -- pushes blood through valve + close to prevent backflow
Why should one "cool down" after
vigorous exercise rather than stop abruptly? - correct answer ✔✔- strenuous activity causes
blood vessels in legs to expand -- brings more blood to legs + feet
- heartbeat slows abruptly if no cool down portion
