BIO 669 Exam 3 Questions and verified
answers
Which of the following statement is correct?
a. The resistance to blood flow increases as the cross sectional area increases
b. The speed of blood flow decreases as the cross sectional area increases
c. The resistance to flow is indirectly proportional to blood viscosity
d. The resistance to blood flow of many vessels increases if they are in parallel as compared to the
area
around ✔️✔️Correct Ans-b. The speed of blood flow decreases as the cross sectional area increases
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 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 ✔️✔️Correct 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 ✔️✔️Correct 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. ✔️✔️Correct 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 ✔️✔️Correct Ans-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 Ans-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 Ans-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 ✔️✔️Correct 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 ✔️✔️Correct Ans-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 Ans-C. Superior Vena Cava Syndrome
The most common cause of aneurysm is:
A. External Hematoma
B. Atherosclerosis with hypertension
C. Genetics
answers
Which of the following statement is correct?
a. The resistance to blood flow increases as the cross sectional area increases
b. The speed of blood flow decreases as the cross sectional area increases
c. The resistance to flow is indirectly proportional to blood viscosity
d. The resistance to blood flow of many vessels increases if they are in parallel as compared to the
area
around ✔️✔️Correct Ans-b. The speed of blood flow decreases as the cross sectional area increases
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 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 ✔️✔️Correct 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 ✔️✔️Correct 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. ✔️✔️Correct 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 ✔️✔️Correct Ans-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 Ans-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 Ans-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 ✔️✔️Correct 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 ✔️✔️Correct Ans-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 Ans-C. Superior Vena Cava Syndrome
The most common cause of aneurysm is:
A. External Hematoma
B. Atherosclerosis with hypertension
C. Genetics
