Cardiovascular part One

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biology

nursing

anatomy

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Créé par

Dr. David Myers

United States

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Cardiovascular part OneVersion en ligne BSC2086 par Dr. David Myers 1 Which layer of the heart allows it to act as a pump? a Epicardium b Myocardium c Pericardium d Endocardium 2 Which slinglike structure supports the heart? a Pericardium b Chordae tendineae c Myocardium d Endocardium 3 What is the hardest working cardiac chamber and therefore has the thickest myocardium? a Right atrium b Right ventricle c Left atrium d Left ventricle 4 The right ventricle pumps blood to the a right atrium. b pulmonary veins c pulmonary artery d aorta. 5 vessel(s) that carry(ies) blood from the pulmonary capillaries to the left atrium is (are) the a aorta. b pulmonary artery c pulmonary veins. d vena cava. 6 The aorta receives blood from the a right ventricle. b pulmonary veins. c pulmonary artery. d left ventricle. 7 Blood flows from the right atrium through which atrioventricular valve to the right ventricle? a Bicuspid b Mitral c Pulmonic d Tricuspid 8 Which of the following structures receives unoxygenated blood? a Aorta b Left ventricle c Pulmonary artery d Pulmonary veins 9 Which of the following receives oxygenated blood? a Venae cavae b Pulmonary veins c Right atrium d Pulmonic valve 10 Chordae tendineae are not associated with this valve. a Aortic b Mitral c Tricuspid d Bicuspid 11 With which of the following is “lubb-dupp” associated? a Myocardial contraction b Ventricular depolarization c Closing of heart valves d Diffusion of O2 from the lungs 12 Which of the following supplies oxygenated blood to the heart muscle? a Coronary arteries b Pulmonary artery c Pulmonary veins d Cardiac veins 13 Which structure connects the cusps of the AV valves to the ventricles? a Purkinje fibers b AV node c Bundle of His d Chordae tendineae 14 Which of the following is least related to the mitral valve? a Left heart b Bicuspid c Semilunar d Chordae tendineae 15 Through which of the following semilunar valves does oxygenated blood pass? a Mitral b Bicuspid c Aortic d Pulmonic 16 The correct sequence is: Blood flows from the right atrium to the right ventricle to the pulmonary artery to the a pulmonary veins. b coronary arteries. c pulmonary capillaries. d vena cava 17 What event causes the pulmonic valve to open? a The P wave b An increase in the pressure within the right ventricle c “Lubb-dupp” d Contraction of the chordae tendineae 18 Which layer of the heart also lines the valves and is continuous with blood vessels? a Myocardium b Endocardium c Epicardium d Pericardium 19 The epicardium is a layer of the a myocardium b diaphragm. c pericardium. d endocardium. 20 The mitral and the bicuspid valves a are semilunar valves. b are both located on the right side of the heart. c “see” only unoxygenated blood d are the same valves. 21 The pulmonic and aortic valves a are atrioventricular valves. b “see” only oxygenated blood. c are attached to the ventricular walls by chordae tendineae d are semilunar valves. 22 The correct sequence is: Blood flows from the pulmonary capillaries to the pulmonary veins to the left atrium to the left ventricle to the a vena cava. b pulmonary artery c aorta d circle of Willis. 23 Which of the following is a result of ventricular contraction? a The AV valves open b The semilunar valves close. c Blood is pumped into the pulmonary artery and the aorta. d Blood flows back into the atria. 24 Under what condition is blood most likely to flow “backward” (e.g., from the left ventricle back into the left atrium)? a Pulmonary artery hypertension b Left ventricular hypertrophy c An insufficient mitral valve d Pulmonary edema 25 What are ventricles “doing” during atrial contraction? a Pumping blood into the great vessels b Closing their AV valves c Relaxing d Opening their semilunar valves 26 Which cavity first receives unoxygenated blood from the vena cava? a Right ventricle b Left atrium c Left ventricle d Right atrium 27 What is the name of the valve that prevents backflow of blood into the right atrium when the right ventricle contracts? a Mitral b Pulmonic c Semilunar d Tricuspid 28 What is the cause of the heart sounds “lubb-dupp”? a Closing of the heart valves b Flow of blood through the coronary arteries c The electrical signal as it moves through the AV node d The firing of the autonomic nerves to the SA node 29 Which of the following is not true of the heart? a The heart is located within the mediastinum. b The apex is located left of the sternal midline at the level of the fifth intercostal space c The base of the heart is located at the level of the second rib. d The pericardium is composed of actin and myosin. 30 Which of the following is least descriptive of the myocardium? a Supplied with blood by the coronary arteries b Thicker in the ventricles than the atria c Thicker in the left ventricle than the right ventricle d Thicker in the left atrium than the right ventricle 31 Which of the following is a function of a valve? a Regulates the direction of blood flow through the heart b Regulates the amount of oxygen bound to hemoglobin c Regulates heart rate d Directs the movement of the cardiac impulse 32 Which of the following is least true of the aortic valve? a It is also called the left semilunar valve. b It “sees” oxygenated blood. c Blood flows from the ventricle through this valve into the pulmonary artery. d An incompetent aortic valve allows blood to leak from the aorta back into the left ventricle. 33 An accumulation of excess fluid in the pericardial space a causes external compression of the heart. b depresses the SA node, thereby eliminating pacemaker activity. c causes valvular stenosis. d causes a left-to-right shunt. 34 Which structure “sees” oxygenated blood? a Tricuspid valve b Pulmonary artery c Pulmonary veins d Right semilunar valve 35 Which group is incorrect? a Semilunar valves: pulmonic, aortic b Atrioventricular valves: tricuspid, bicuspid, mitral c Structures that carry oxygenated blood: pulmonary veins, left ventricle, aorta d Structures that carry unoxygenated blood: right ventricle, venae cavae, pulmonary veins 36 Which group is incorrect? a Semilunar valves: pulmonic, aortic b Structures that carry oxygenated blood: pulmonary veins, left ventricle, aorta c Layers of the heart: epicardium, myocardium, endocardium d Abnormal heart rates: tachycardia, bradycardia, normal sinus rhythm 37 The middle layer of the heart is the: a myocardium b epicardium c endocardium 38 what part of the nervous system increases heart rate? a sympathetic NS b parasympathetic NS 39 Normal heart rate is: a over 110 bpm b 80 -110 bpm c 40 -60 bpm d 60 -100 bpm 40 a heart rate under 60 is called a bradycardia b tachycardia c sinus rhythum 41 a heart rate over 100 is called: a bradycardia b tachycardia c sinus rhythm 42 arteries that supply the heart muscle with oxygen: a cerebral arteries b systemic arteries c pulmonary arteries d coronary arteries 43 the contraction phase of the heartbeat: a diastole b systole 44 the relaxing phase of a heartbeat: a systole b diastole

Cardiovascular part OneVersion en ligne

BSC2086

par Dr. David Myers

Which layer of the heart allows it to act as a pump?

Epicardium

Myocardium

Pericardium

Endocardium

Which slinglike structure supports the heart?

Pericardium

Chordae tendineae

Myocardium

Endocardium

What is the hardest working cardiac chamber and therefore has the thickest myocardium?

Right atrium

Right ventricle

Left atrium

Left ventricle

The right ventricle pumps blood to the

right atrium.

pulmonary veins

pulmonary artery

aorta.

vessel(s) that carry(ies) blood from the pulmonary capillaries to the left atrium is (are) the

aorta.

pulmonary artery

pulmonary veins.

vena cava.

The aorta receives blood from the

right ventricle.

pulmonary veins.

pulmonary artery.

left ventricle.

Blood flows from the right atrium through which atrioventricular valve to the right ventricle?

Bicuspid

Mitral

Pulmonic

Tricuspid

Which of the following structures receives unoxygenated blood?

Aorta

Left ventricle

Pulmonary artery

Pulmonary veins

Which of the following receives oxygenated blood?

Venae cavae

Pulmonary veins

Right atrium

Pulmonic valve

Chordae tendineae are not associated with this valve.

Aortic

Mitral

Tricuspid

Bicuspid

With which of the following is “lubb-dupp” associated?

Myocardial contraction

Ventricular depolarization

Closing of heart valves

Diffusion of O2 from the lungs

Which of the following supplies oxygenated blood to the heart muscle?

Coronary arteries

Pulmonary artery

Pulmonary veins

Cardiac veins

Which structure connects the cusps of the AV valves to the ventricles?

Purkinje fibers

AV node

Bundle of His

Chordae tendineae

Which of the following is least related to the mitral valve?

Left heart

Bicuspid

Semilunar

Chordae tendineae

Through which of the following semilunar valves does oxygenated blood pass?

Mitral

Bicuspid

Aortic

Pulmonic

The correct sequence is: Blood flows from the right atrium to the right ventricle to the pulmonary artery to the

pulmonary veins.

coronary arteries.

pulmonary capillaries.

vena cava

What event causes the pulmonic valve to open?

The P wave

An increase in the pressure within the right ventricle

“Lubb-dupp”

Contraction of the chordae tendineae

Which layer of the heart also lines the valves and is continuous with blood vessels?

Myocardium

Endocardium

Epicardium

Pericardium

The epicardium is a layer of the

myocardium

diaphragm.

pericardium.

endocardium.

The mitral and the bicuspid valves

are semilunar valves.

are both located on the right side of the heart.

“see” only unoxygenated blood

are the same valves.

The pulmonic and aortic valves

are atrioventricular valves.

“see” only oxygenated blood.

are attached to the ventricular walls by chordae tendineae

are semilunar valves.

The correct sequence is: Blood flows from the pulmonary capillaries to the pulmonary veins to the left atrium to the left ventricle to the

vena cava.

pulmonary artery

aorta

circle of Willis.

Which of the following is a result of ventricular contraction?

The AV valves open

The semilunar valves close.

Blood is pumped into the pulmonary artery and the aorta.

Blood flows back into the atria.

Under what condition is blood most likely to flow “backward” (e.g., from the left ventricle back into the left atrium)?

Pulmonary artery hypertension

Left ventricular hypertrophy

An insufficient mitral valve

Pulmonary edema

What are ventricles “doing” during atrial contraction?

Pumping blood into the great vessels

Closing their AV valves

Relaxing

Opening their semilunar valves

Which cavity first receives unoxygenated blood from the vena cava?

Right ventricle

Left atrium

Left ventricle

Right atrium

What is the name of the valve that prevents backflow of blood into the right atrium when the right ventricle contracts?

Mitral

Pulmonic

Semilunar

Tricuspid

What is the cause of the heart sounds “lubb-dupp”?

Closing of the heart valves

Flow of blood through the coronary arteries

The electrical signal as it moves through the AV node

The firing of the autonomic nerves to the SA node

Which of the following is not true of the heart?

The heart is located within the mediastinum.

The apex is located left of the sternal midline at the level of the fifth intercostal space

The base of the heart is located at the level of the second rib.

The pericardium is composed of actin and myosin.

Which of the following is least descriptive of the myocardium?

Supplied with blood by the coronary arteries

Thicker in the ventricles than the atria

Thicker in the left ventricle than the right ventricle

Thicker in the left atrium than the right ventricle

Which of the following is a function of a valve?

Regulates the direction of blood flow through the heart

Regulates the amount of oxygen bound to hemoglobin

Regulates heart rate

Directs the movement of the cardiac impulse

Which of the following is least true of the aortic valve?

It is also called the left semilunar valve.

It “sees” oxygenated blood.

Blood flows from the ventricle through this valve into the pulmonary artery.

An incompetent aortic valve allows blood to leak from the aorta back into the left ventricle.

An accumulation of excess fluid in the pericardial space

causes external compression of the heart.

depresses the SA node, thereby eliminating pacemaker activity.

causes valvular stenosis.

causes a left-to-right shunt.

Which structure “sees” oxygenated blood?

Tricuspid valve

Pulmonary artery

Pulmonary veins

Right semilunar valve

Which group is incorrect?

Semilunar valves: pulmonic, aortic

Atrioventricular valves: tricuspid, bicuspid, mitral

Structures that carry oxygenated blood: pulmonary veins, left ventricle, aorta

Structures that carry unoxygenated blood: right ventricle, venae cavae, pulmonary veins

Which group is incorrect?

Semilunar valves: pulmonic, aortic

Structures that carry oxygenated blood: pulmonary veins, left ventricle, aorta

Layers of the heart: epicardium, myocardium, endocardium

Abnormal heart rates: tachycardia, bradycardia, normal sinus rhythm

The middle layer of the heart is the:

myocardium

epicardium

endocardium

what part of the nervous system increases heart rate?

sympathetic NS

parasympathetic NS

Normal heart rate is:

over 110 bpm

80 -110 bpm

40 -60 bpm

60 -100 bpm

a heart rate under 60 is called

bradycardia

tachycardia

sinus rhythum

a heart rate over 100 is called:

bradycardia

tachycardia

sinus rhythm

arteries that supply the heart muscle with oxygen:

cerebral arteries

systemic arteries

pulmonary arteries

coronary arteries

the contraction phase of the heartbeat:

diastole

systole

the relaxing phase of a heartbeat:

systole

diastole

Cardiovascular part One

Test

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Créé par

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