ASU BIO 202 Exam 1 (cardiac) Questions With Complete
Solutions
_____ preload causes _____ force of contraction Correct
Answers increase; increase
_____ separate the atria from the ventricle Correct Answers
valves
2 septums Correct Answers atrial
ventricular
a _____ separates the right and left sides of heart Correct
Answers septum
abnormal cardiac rhythm Correct Answers Arrhythmia -
Active heart = Correct Answers 90%
afterload and SV have an _____ relationship Correct Answers
inverse
increase afterload decrease SV
ally of cardiac output Correct Answers preload
Amount ejected by ventricle in 1 minute Correct Answers
cardiac output (CO)
amount of tension in ventricular myocardium
before it contracts Correct Answers preload
, any impedance in arterial circulation _____ afterload Correct
Answers increases
AP's travel through _____ in cardiac muscle Correct Answers
gap junctions
bradycardia common in Correct Answers sleep and endurance
athletes
Cardiac center of medulla oblongata is
an autonomic control center with two neuronal pools Correct
Answers cardioacceleratory center (sympathetic), and a
cardioinhibitory center (parasympathetic)
cardiac conduction produces Correct Answers automatic
cardiac rhythm
cardiac conduction steps Correct Answers 1. Sinoatrial node
produces AP's throughout atria
2. Atrioventricular Node delay; atria depolarizes and contracts
before ventricles, filling ventricles with blood
3. AP travels to ventricles via Atrioventricular bundle
4. AP travels through interventricular septum via right and left
bundle branches
5. AP is conducted to ventricular myocytes via purkinje fibers
cardiac cycle
Characterized on auscultation as Correct Answers "Lubb-
Dubb", pause, "Lubb- Dubb",
Solutions
_____ preload causes _____ force of contraction Correct
Answers increase; increase
_____ separate the atria from the ventricle Correct Answers
valves
2 septums Correct Answers atrial
ventricular
a _____ separates the right and left sides of heart Correct
Answers septum
abnormal cardiac rhythm Correct Answers Arrhythmia -
Active heart = Correct Answers 90%
afterload and SV have an _____ relationship Correct Answers
inverse
increase afterload decrease SV
ally of cardiac output Correct Answers preload
Amount ejected by ventricle in 1 minute Correct Answers
cardiac output (CO)
amount of tension in ventricular myocardium
before it contracts Correct Answers preload
, any impedance in arterial circulation _____ afterload Correct
Answers increases
AP's travel through _____ in cardiac muscle Correct Answers
gap junctions
bradycardia common in Correct Answers sleep and endurance
athletes
Cardiac center of medulla oblongata is
an autonomic control center with two neuronal pools Correct
Answers cardioacceleratory center (sympathetic), and a
cardioinhibitory center (parasympathetic)
cardiac conduction produces Correct Answers automatic
cardiac rhythm
cardiac conduction steps Correct Answers 1. Sinoatrial node
produces AP's throughout atria
2. Atrioventricular Node delay; atria depolarizes and contracts
before ventricles, filling ventricles with blood
3. AP travels to ventricles via Atrioventricular bundle
4. AP travels through interventricular septum via right and left
bundle branches
5. AP is conducted to ventricular myocytes via purkinje fibers
cardiac cycle
Characterized on auscultation as Correct Answers "Lubb-
Dubb", pause, "Lubb- Dubb",
