The Cardiovascular System Quiz

c

A peptide released from stretched cardiac muscle

a)diastolic heart failure

b)ejection fraction

c)natriuretic peptide

d)stroke volume

e)systolic heart failure

e

Impaired ejection of blood from ventricle

a)diastolic heart failure

b)ejection fraction

c)natriuretic peptide

d)stroke volume

e)systolic heart failure

d

The volume of blood ejected from the ventricle during a systolic contraction

a)diastolic heart failure

b)ejection fraction

c)natriuretic peptide

d)stroke volume

e)systolic heart failure

b

The percentage of the blood in the ventricle that is ejected during systole

a)diastolic heart failure

b)ejection fraction

c)natriuretic peptide

d)stroke volume

e)systolic heart failure

a

Impaired ventricular filling

a)diastolic heart failure

b)ejection fraction

c)natriuretic peptide

d)stroke volume

e)systolic heart failure

b

What is the most serious consequence of an acute full-thickness (transmural) myocardial infarction?

a)Pericarditis

b)Rupture of the heart through the infarcted area, leading to a hemopericardium and cardiac tamponade

c)Malfunction of the papillary muscles attached to the ventricular wall

d)High levels of cardiac enzymes in the blood

c

Why do cardiac enzymes rise after an acute myocardial infarction?

a)white cells are attracted to the site of muscle injury

b)injured fibers increase their synthesis of cardiac muscle enzymes

c)cardiac enzymes leak from the damaged muscle fibers into the bloodstream

d)blood flow to the injured muscle is increased

a

Tools to examine cardiovascular function include which of the following?

a)electrocardiogram

b)angiogram

c)mammogram

d)X-ray

a

The impulses that cause the heart to beat come from which of the following?

a) groups of specialized muscle cells

b) the nervous system

c) the endocrine system

d)Breathing

1,2,3

Methods to re-established blood flow through a thrombosed coronary artery include which of the following?

1)fibrinolytic treatment

2)percutaneous coronary intervention

3)angioplasty

4)fascia treatment

1,2,3

Which of the following is a heart valve?

1)The atrioventricular

2)The tricuspid

3)The mitral

4)The chordae tendineae

1,3,4

Which of the following statements relating to cardiac structure and function is correct?

1)the heart is a muscular pump

2)the heart is divided into three chambers

3)the right side circulates blood to the lungs

4)the beat of the heart is controlled by the nervous system

b

Partitions between cardiac chambers always develop normally

a)true

b)false

b

Blood flow in the fetal heart is the same as in the newborn heart

a)true

b)false

b

In the tetralogy of fallot the great arteries are transposed

a)true

b)false

a

Right-to-left shunts mix poorly oxygenated blood with normally oxygenated blood, reducing the oxygen content of blood pumped to organs

a)true

b)false

b

Cocaine dilates the coronary arteries and increases myocardial blood flow

a)true

b)false

a

A severely diseased heart valve that does not function properly can be treated by excising (cutting out) the diseased valve and replacing it with an artificial heart valve

a)true

b)false