Bio 669 Quiz 4 (Cardiovascular)
Questions and verified answers
Which of the following is not a primary factor in determining preload? ✔️✔️Correct Ans-Total
peripheral (systemic) resistance
Which of the following statements is incorrect? ✔️✔️Correct Ans-Prostacyclins, which are diminished
by NSAIDs, are vasoconstrictors
Which of the following is incorrect regarding the isometric contraction phase of the cardiac cycle?
✔️✔️Correct Ans-The atria are contracting
The resistance of movement of blood from the left ventricle to the aorta is termed the: ✔️✔️Correct
Ans-afterload
Natriuretic peptides act by: ✔️✔️Correct Ans-Stimulate the release of Na+ (thus increases urine
volume) from the kidneys
The doubled layer serous membrane surrounding the heart that functions to minimize friction from the
heart movement is the: ✔️✔️Correct Ans-Pericardium
Prinzmetal angina is ✔️✔️Correct Ans-A transient ischemia of the myocardium that occurs
unpredictably
Progressive venous distention of the head and upper extremities resulting from growth of a cancerous
tumor on the right mainstem bronchus is best described clinically as: ✔️✔️Correct Ans-Superior vena
cava syndrome
The most common cause of aneurysm is: ✔️✔️Correct Ans-Atherosclerosis with hypertension
An atherosclerotic area that has ruptured is termed ✔️✔️Correct Ans-Complicated plaque
The PR interval represents the time from: ✔️✔️Correct Ans-The onset of atrial systole to the onset of
ventricular systole
, The circumflex artery off of the left coronary artery ✔️✔️Correct Ans-left atrium and ventricle
The structure that connect the leaflet/cusps and help to prevent prolapse of the AV valves is the
✔️✔️Correct Ans-Chordae tendinae and papillary muscles
A mitral valve prolapse would be heard during ✔️✔️Correct Ans-ventricular systole
Hypertensive crisis (malignant hypertension) is best defined as: ✔️✔️Correct Ans-Rapidly progressive
hypertension with a diastolic pressure of 140 mmHg or more
intermittent claudication is ✔️✔️Correct Ans-A sign of peripheral artery disease
A patient presents with fever, diffuse microemboli presenting as petechial lesions, painful lesions on
the fingertips and what looks like non-tender bruising on both hands is most indicative of which
disease process? ✔️✔️Correct Ans-Infective endocarditis
Stroke volume: ✔️✔️Correct Ans-None of the above are true
T wave relates to _______ and shortly precedes the closure of the ______ valves ✔️✔️Correct Ans-
Ventricular repolarization; SL
How much of the oxygen carried by hemoglobin in the blood is actually transferred to the
myocardium? ✔️✔️Correct Ans-70-75%
The key regulator determining if a muscle, such as cardiac muscle, contracts or not is the presence of:
✔️✔️Correct Ans-Ca++
Myocardial hibernation is best described as: ✔️✔️Correct Ans-Myocardial cells that are persistently
ischemic and undergo metabolic adaptation to prolong survival
A thrombus is a blood clot that remains attached to a vessel wall. Which of the following is not one of
the main factors as proposed by Virchow? ✔️✔️Correct Ans-Obesity
Questions and verified answers
Which of the following is not a primary factor in determining preload? ✔️✔️Correct Ans-Total
peripheral (systemic) resistance
Which of the following statements is incorrect? ✔️✔️Correct Ans-Prostacyclins, which are diminished
by NSAIDs, are vasoconstrictors
Which of the following is incorrect regarding the isometric contraction phase of the cardiac cycle?
✔️✔️Correct Ans-The atria are contracting
The resistance of movement of blood from the left ventricle to the aorta is termed the: ✔️✔️Correct
Ans-afterload
Natriuretic peptides act by: ✔️✔️Correct Ans-Stimulate the release of Na+ (thus increases urine
volume) from the kidneys
The doubled layer serous membrane surrounding the heart that functions to minimize friction from the
heart movement is the: ✔️✔️Correct Ans-Pericardium
Prinzmetal angina is ✔️✔️Correct Ans-A transient ischemia of the myocardium that occurs
unpredictably
Progressive venous distention of the head and upper extremities resulting from growth of a cancerous
tumor on the right mainstem bronchus is best described clinically as: ✔️✔️Correct Ans-Superior vena
cava syndrome
The most common cause of aneurysm is: ✔️✔️Correct Ans-Atherosclerosis with hypertension
An atherosclerotic area that has ruptured is termed ✔️✔️Correct Ans-Complicated plaque
The PR interval represents the time from: ✔️✔️Correct Ans-The onset of atrial systole to the onset of
ventricular systole
, The circumflex artery off of the left coronary artery ✔️✔️Correct Ans-left atrium and ventricle
The structure that connect the leaflet/cusps and help to prevent prolapse of the AV valves is the
✔️✔️Correct Ans-Chordae tendinae and papillary muscles
A mitral valve prolapse would be heard during ✔️✔️Correct Ans-ventricular systole
Hypertensive crisis (malignant hypertension) is best defined as: ✔️✔️Correct Ans-Rapidly progressive
hypertension with a diastolic pressure of 140 mmHg or more
intermittent claudication is ✔️✔️Correct Ans-A sign of peripheral artery disease
A patient presents with fever, diffuse microemboli presenting as petechial lesions, painful lesions on
the fingertips and what looks like non-tender bruising on both hands is most indicative of which
disease process? ✔️✔️Correct Ans-Infective endocarditis
Stroke volume: ✔️✔️Correct Ans-None of the above are true
T wave relates to _______ and shortly precedes the closure of the ______ valves ✔️✔️Correct Ans-
Ventricular repolarization; SL
How much of the oxygen carried by hemoglobin in the blood is actually transferred to the
myocardium? ✔️✔️Correct Ans-70-75%
The key regulator determining if a muscle, such as cardiac muscle, contracts or not is the presence of:
✔️✔️Correct Ans-Ca++
Myocardial hibernation is best described as: ✔️✔️Correct Ans-Myocardial cells that are persistently
ischemic and undergo metabolic adaptation to prolong survival
A thrombus is a blood clot that remains attached to a vessel wall. Which of the following is not one of
the main factors as proposed by Virchow? ✔️✔️Correct Ans-Obesity
