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BIO 669 Exam 2 with 123 Answered Questions A+ Graded
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BIO 669 EXAM 2WITH 120 ANSWERED QUESTIONS. A+ GRADED, LATEST
2024-2024
1. Thromboangiitis obliterans (Buergers disease) is an autoimmune condition that
is:
a. A result of over activation of the intrinsic and extrinsic clotting system
systemically
b. Characterized by attacks of vasospasm in the small arteries and arterioles of
the fingers and toes
c. Strongly associated with smoking
d. Associated with janeway lesions and Oslers Nodes: c. Strongly associated with
smoking
2. 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: a. Congestive Heart Failure
3. 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: c. Total peripheral (systemic)
resistance
4. 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 pres-
sures
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.: d.
Prostacyclins, which are diminished by NSAIDS, are vasoconstrictors
5. 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: b. The atria are contracting
6. 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: d. Afterload
,7. 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: b. Stimulate
the release of Na+ (thus increasing urine volume) from the kidneys
8. 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: D. Pericardium
9. 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: a. A transient ischemia of the myocardium
that occurs unpredictably
10. 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: C. Superior Vena Cava Syndrome
11. The most common cause of aneurysm is:
A. External Hematoma
B. Atherosclerosis with hypertension
C. Genetics
D. Congestive heart failure: B. Atherosclerosis with hypertension
12. An atherosclerotic area that has ruptured is termed a:
A. Fibrous plaque
B. Complicated plaque
C. Fatty streak
D. Aneurysm: B. Complicated plaque
13. The PR Interval represents the time from:
A. The onset of atrial systole to the completion of atrial diastole
B. The onset of atrial systole to the onset of ventricular diastole
C. The onset of atrial systole to the onset of ventricular diastole
D. The onset of atrial systole to the onset of ventricular systole: D. The onset of
atrial systole to the onset of ventricular systole
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