BIO 669 Exam 2 Questions And Answers | Updated Solutions | 100% Correct Answers

BIO 669 Exam 2 Questions And Answers | Updated Solutions | 100% Correct Answers
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
Ans: 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
Ans: 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
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
d. It occurs during ventricular systole
Ans: b. The atria are contracting
The resistance of movement of blood from the left ventricle to the aorta is
termed the:
BIO 669 Exam 2 Questions And Answers | 2026 Updated
Solutions | 100% Correct Answers
a. Ejection fraction
b. Compliance
c. Preload
d. Afterload
Ans: d. Afterload

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