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BIO 669 Exam 2 Questions And Answers All Correct And Verified

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BIO 669 Exam 2 Questions And Answers All Correct And Verified Thromboangiitis obliterans (Buerger's 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 a...

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  • August 9, 2024
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BIO 669 Exam 2

Thromboangiitis obliterans (Buerger's 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




K
c. Strongly associated with smoking




C
d. Associated with janeway lesions and Osler's Nodes - ANS c. Strongly associated with smoking

Which of the following is not a systemic disease that is associated with Raynaud's Phenomenon?




LO
a. Congestive heart failure

b. Collagen vascular diseases such as scleroderma
YC
c. Pulmonary hypertension

d. Myxedema or smoking - ANS a. Congestive Heart Failure

Which of the following is NOT a primary factor in determining preload?
D

a. Venous return during diastole

b. End systolic volume
U



c. Total peripheral (systemic) resistance
ST




d. All of the above are primary factors of preload - ANS 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. - ANS 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




K
d. It occurs during ventricular systole - ANS b. The atria are contracting




C
The resistance of movement of blood from the left ventricle to the aorta is termed the:

a. Ejection fraction




LO
b. Compliance

c. Preload
YC
d. Afterload - ANS d. Afterload

Natriuretic peptides act by:

a. Stimulates secretion of Na+ (and thus decreases urine volume) from the kidneys
D

b. Stimulated the release of Na+ (thus increases urine volume) from the kidneys

c. Increases vascular smooth muscle contraction (vasoconstriction)
U


d. Stimulates increased heart rate, contractility, and cardiac output - ANS b. Stimulate the release of
Na+ (thus increasing urine volume) from the kidneys
ST




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 D. Pericardium

,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. A transient ischemia of the myocardium that occurs




K
unpredictably

Progressive venous distension of the head and upper extremities resulting from growth of a cancerous




C
tumor on the right mainstem bronchus is best described clinically by:

A. Deep vein thrombosis




LO
B. Spinal shock

C. Superior vena cava syndrome
YC
D. Carcinoid syndrome - ANS C. Superior Vena Cava Syndrome

The most common cause of aneurysm is:

A. External Hematoma
D

B. Atherosclerosis with hypertension

C. Genetics
U


D. Congestive heart failure - ANS B. Atherosclerosis with hypertension
ST




An atherosclerotic area that has ruptured is termed a:

A. Fibrous plaque

B. Complicated plaque

C. Fatty streak

D. Aneurysm - ANS B. Complicated plaque

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 - ANS D. The onset of atrial systole to
the onset of ventricular systole




K
The circumflex artery off of the left coronary artery:

A. Left atrium and ventricle




C
B. The two atria




LO
C. The two ventricles

D. The aorta and the pulmonary artery - ANS A. Left atrium and ventricle

The structures that connect the leaflets/cusps and help to prevent prolapse of the AV valves is the:
YC
A. Chordae tendineae and papillary muscles

B. Cardiomyocytes

C. Interventricular septum
D

D. Coronary ostia - ANS A. Chordae tendineae and papillary muscles
U


Hypertensive crisis (malignant hypertension) is best defined as:

A. An advancing failure of systemic circulation as the heart weakens
ST




B. Rapidly progressive hypertension with a diastolic pressure of 140 mmHg or more

C. A pulse pressure of greater than 60

D. Blood pressure readings consistently greater than 140/90 mmHg - ANS B. Rapidly progressive
hypertension with a diastolic pressure of 140 mmHg or more

Intermittent claudication is:

A. Caused by coronary artery disease

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