BIO669 EXAM SCRIPT 3 2026 COMPLETE
QUESTIONS AND SOLUTIONS GRADED A+
⩥ Which of the following is not a systemic disease that is associated
with Raynaud's Phenomenon?
a. Congestive heart failure
b. Collagen vascular diseases such as scleroderma
c. Pulmonary hypertension
d. Myxedema or smoking. Answer: a. Congestive Heart Failure
⩥ Which of the following is NOT a primary factor in determining
preload?
a. Venous return during diastole
b. End systolic volume
c. Total peripheral (systemic) resistance
,d. All of the above are primary factors of preload. Answer: c. Total
peripheral (systemic) resistance
⩥ Which of the following statements are INCORRECT
a. The mean arterial pressure is the average force of pushing blood
through the systemic circuit.
b. The pulse pressure is the difference between systolic and diastolic
pressures
c. A decrease in aortic compliance increases its stiffness and thus can
lead to an increase in pulse pressures
d. Prostacyclins, which are diminished by NSAIDs, are
vasoconstrictors.. Answer: d. Prostacyclins, which are diminished by
NSAIDS, are vasoconstrictors
⩥ 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. Answer: b. The atria are
contracting
⩥ The resistance of movement of blood from the left ventricle to the
aorta is termed the:
a. Ejection fraction
b. Compliance
c. Preload
d. Afterload. Answer: d. Afterload
⩥ 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.
Answer: b. Stimulate the release of Na+ (thus increasing urine volume)
from the kidneys
⩥ 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. Answer: D. Pericardium
⩥ Prinzmetal angina is:
a. A transient ischemia of the myocardium that occurs unpredictably
QUESTIONS AND SOLUTIONS GRADED A+
⩥ Which of the following is not a systemic disease that is associated
with Raynaud's Phenomenon?
a. Congestive heart failure
b. Collagen vascular diseases such as scleroderma
c. Pulmonary hypertension
d. Myxedema or smoking. Answer: a. Congestive Heart Failure
⩥ Which of the following is NOT a primary factor in determining
preload?
a. Venous return during diastole
b. End systolic volume
c. Total peripheral (systemic) resistance
,d. All of the above are primary factors of preload. Answer: c. Total
peripheral (systemic) resistance
⩥ Which of the following statements are INCORRECT
a. The mean arterial pressure is the average force of pushing blood
through the systemic circuit.
b. The pulse pressure is the difference between systolic and diastolic
pressures
c. A decrease in aortic compliance increases its stiffness and thus can
lead to an increase in pulse pressures
d. Prostacyclins, which are diminished by NSAIDs, are
vasoconstrictors.. Answer: d. Prostacyclins, which are diminished by
NSAIDS, are vasoconstrictors
⩥ 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. Answer: b. The atria are
contracting
⩥ The resistance of movement of blood from the left ventricle to the
aorta is termed the:
a. Ejection fraction
b. Compliance
c. Preload
d. Afterload. Answer: d. Afterload
⩥ 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.
Answer: b. Stimulate the release of Na+ (thus increasing urine volume)
from the kidneys
⩥ 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. Answer: D. Pericardium
⩥ Prinzmetal angina is:
a. A transient ischemia of the myocardium that occurs unpredictably
