BIO 669 Exam 2 (2025 / 2026) Tested Questions with Revised Correct Answers, (A+ Guarantee)

BIO 669 Exam 2
() Tested Questions with
Revised Correct Answers, (A+
Guarantee)

1. Which Of The Following Is Incorrect Regarding The Isometric Contraction Phase Of The
Cardiac Cycle?


A. Blood Does Not Flow Through The Heart At This Time.


B. The Atria Are Contracting


C. The Valves Are Closed


D. It Occurs During Ventricular Systole
Ans>> The Atria Are Contracting




2. The Resistance Of Movement Of Blood From The Left Ventricle To Termed The:


,A. Ejection Fraction


B. Compliance


C. Preload


D. Afterload
Ans>> Afterload




3. Natriuretic Peptides Act By:


A. Stimulates Secretion Of Na+ (And Thus Decreases Urine Volume) From The Kidneys


B. Stimulated The Release Of Na+ (Thus Increases Urine Volume) From The Kidneys


C. Increases Vascular Smooth Muscle Contraction (Vasoconstriction)


D. Stimulates Increased Heart Rate, Contractility, And Cardiac Output
Ans>> Stimulate The Release Of Na+ (Thus Increasing Urine Volume) From The Kidneys

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4. The Double Layered Serous Membrane Surrounding The Heart That Functions To
Minimize Friction From The Heart Movement Is The:


A. Myocardium


B. Endocardium


C. Peritoneum


D. Pericardium
Ans>> Pericardium




5. Prinzmetal Angina Is:


A. A Transient Ischemia Of The Myocardium That Occurs Unpredictably


B. Myocardial Ischemia That May Not Cause Detectable Symptoms


C. Ischemia That Occurs After A Predictable Amount Of Exercise


D. The Rupture Of An Unstable Plaque
Ans>> A Transient Ischemia Of The Myocardium That Occurs Unpredictably

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6. Progressive Venous Distension Of The Head And Upper Extremities Resulting From
Growth Of A Cancerous Tumor On The Right Mainstem Bronchus Is Best Described Clinically By:


A. Deep Vein Thrombosis


B. Spinal Shock


C. Superior Vena Cava Syndrome


D. Carcinoid Syndrome
Ans>> Superior Vena Cava Syndrome