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BIO 669 Exam 2 Questions With 100% Verified Answers(Guaranteed Success)
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BIO 669 Exam 2 Questions With 100% Verified Answers(Guaranteed Success) 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 t...

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BIO 669 Exam 2 Questions With 100%
Verified Answers(Guaranteed Success)
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 - correct answer...✔✔c. Strongly
associated with smoking

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 - correct 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 - correct 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



A GRADESOLUTIONS

,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. - correct
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 - correct 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 - correct 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 - correct 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


A GRADESOLUTIONS

,D. Pericardium - correct answer...✔✔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 - correct answer...✔✔a. A transient ischemia of
the myocardium that occurs unpredictably

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 - correct answer...✔✔C. Superior Vena Cava Syndrome

The most common cause of aneurysm is:

A. External Hematoma

B. Atherosclerosis with hypertension

C. Genetics

D. Congestive heart failure - correct answer...✔✔B. Atherosclerosis with hypertension

An atherosclerotic area that has ruptured is termed a:

A. Fibrous plaque

B. Complicated plaque

C. Fatty streak

D. Aneurysm - correct answer...✔✔B. Complicated plaque

The PR Interval represents the time from:


A GRADESOLUTIONS

, 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 - correct answer...✔✔D.
The onset of atrial systole to the onset of ventricular systole

The circumflex artery off of the left coronary artery:

A. Left atrium and ventricle

B. The two atria

C. The two ventricles

D. The aorta and the pulmonary artery - correct answer...✔✔A. Left atrium and
ventricle

The structures that connect the leaflets/cusps and help to prevent prolapse of the AV
valves is the:

A. Chordae tendineae and papillary muscles

B. Cardiomyocytes

C. Interventricular septum

D. Coronary ostia - correct answer...✔✔A. Chordae tendineae and papillary muscles

Hypertensive crisis (malignant hypertension) is best defined as:

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

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 - correct answer...
✔✔B. Rapidly progressive hypertension with a diastolic pressure of 140 mmHg or more

Intermittent claudication is:

A. Caused by coronary artery disease


A GRADESOLUTIONS

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