Bio 253 Final Exam questions and answers

10/30/25, 3:14 PM Bio 253 Final Exam questions and answers Flashcards | Quizlet




Bio 253 Final Exam questions and answers

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inferior/Superior Vena Cava
Right Atrium
tricuspid valve
Right Ventricle
Pulmonary valve
Pulmonary Trunk
Pulmonary arteries
Lungs
Pulmonary Veins
L Atrium
L Ventricle
Aorta



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, 10/30/25, 3:14 PM Bio 253 Final Exam questions and answers Flashcards | Quizlet



1 1st heart sound 2 Antibodies



Components of the conduction
3 Blood flow through the heart 4
system



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Terms in this set (68)


1st heart sound closure of AV valves

2nd heart sound closure of SL valves

AV valves tricuspid and bicuspid

SL valves pulmonary and aortic

SA nodes
AV nosed
Components of the
AV bundle (bundle of his)
conduction system
Bundle branches
Purkinje fibers

Depolarization of atria P wave

Depolarization of QRS complex
ventricles

Repolarization of T wave
ventricles

Systole contraction
Diastole relaxation (filling)

Atrial: Ventricular:
atria - contracting atria - relaxed
Atrial systole VS
av valves- open av valves - closed
Ventricular systole
ventricles - relaxed ventricles - contracting
SL node - closed SL node - open

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