Download Chapter 11: The Cardiovascular System

Chapter 11: The Cardiovascular System.
( ) 1- The tissue which forms a loose-fitting sac around the heart is
the?
a- endocardium
b- parietal pericardium
c- visceral pericardium
d- myocardium
e- epicardium
( ) 2- The layer of serous membrane that covers the heart that lies
closest to the sternum is the?
a- endocardium
b- parietal pericardium
c- myocardium
d- visceral pericardium
e- epicardium
( ) 3- Heart muscle is also called?
a- visceral pericardium
b- epicardium
c- endocardium
d- myocardium
e- endothelium
( ) 4- What is the specific name of the tissue that lines all the
chambers of the heart?
a- endothelium
b- endocardium
c- simple cuboidal epithelium
d- simple squamous epithelium
( ) 5- Blood flows from the right ventricle into the?
a- pulmonary trunk
b- pulmonary veins
c- coronary artery
d- right atrium
e- superior vena cava
( ) 6- Blood returning from the pulmonary part of the circulatory
system enters the _______ of the heart?
a- left ventricle
b- left atrium
c- right ventricle
d- right atrium
e- sinus venosus
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( ) 7- The tricuspid valve prevents flow of blood from the?
a- pulmonary trunk to the right ventricle
b- right ventricle to the pulmonary arch
c- right atrium into the left atrium
d- right ventricle to the right atrium
e- left ventricle to the left atrium
( ) 8- The mitral valve is on the same side of the heart as the?
a- superior vena cava
b- aortic semilunar valve
c- tricuspid valve
d- pulmonary semilunar valve
e- opening of the coronary sinus
( ) 9- The cusps of the atrio-ventricular (A/V) valves are anchored to
the papillary muscles by the?
a- pericardium
b- chordae tendinae
c- intercalated discs
d- fossa ovalis
e- coronary sinus
( ) 10- What is the first branch off the base of the aorta?
a- brachiocephalic artery
b- left common carotid artery
c- left subclavian artery
d- right common carotid artery
e- coronary artery
( ) 11- Blood vessels carrying blood away from the heart are called?
a- veins
b- capillaries
c- coronaries
d- arteries
e- lymphatics
( ) 12- What is the heart's pacemaker?
a- medulla oblongata
b- Atrio-Ventricular (A/V) node
c- Sino-Atrial (S/A) node
d- Cranial nerve X - Vagus nerve
e- both a and d above are correct
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( ) 13- When considering the heart sounds (frequently given as lub,
dup), we should realize that?
a- the first sound is caused by contraction of the Purkinje fibers, the second by
contraction of the papillary muscles
b- the first sound is caused by closure of the A/V valves, the second by closure of
the semilunar valves
c- the first sound is caused by closure of the tricuspid valve, the second by
closure of the mitral valve
d- they are caused by contraction of the ventricles, followed by contraction of
the atria
e- the first sound is caused by closure of the mitral valve, the second by closure
of the tricuspid valve
( ) 14- The correct sequence of parts that function to carry cardiac
impulses is?
a- S/A Node ===> A/V Node ===> Atrioventricular bundle ===> Purkinje fibers
b- S/A Node ===> Purkinje fibers ===> A/V Node ===> Atrioventricular
bundle
c- A/V Node ===> Atrioventricular bundle ===> Purkinje fibers ===> S/A Node
d- Atrioventricular bundle ===> S/A Node ===> A/V Node ===> Purkinje
fibers
e- A/V Node ===> S/A Node ===> purkinje fibers ===> Atrioventricular bundle
( ) 15- What is the portion of the ECG that indicates ventricular
repolarization?
a- R spike
b- QRS complex
c- P-Q interval
d- P wave
e- T wave
( ) 16-The product of the stroke volume and the heart rate is known
as the?
a- cardiac reserve
b- end-systolic volume
c- blood pressure
d- cardiac output
e- end-diastolic volume
( ) 17- What is the circulatory route that runs from the digestive
tract to the liver called?
a- systemic circuit
b- hepatic portal system
c- renal portal system
d- pulmonary circuit
e- coronary circuit
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( ) 18- You are not an athlete and you are not physical fit. If you
suddenly partake in physical exercise, then the increased demands of
such vigorous exercise on your body are met primarily by?
a- increased stroke volume
b- increased heart rate
c- increased blood volume
d- all of a, b and c above are correct
e- only b and c above are correct
( ) 19- The umbilical vein carries?
a- Metabolic wastes and carbon dioxide from the fetus to the placent
b- oxygen and foods from the fetus to the placenta
c- from the navel directly into the inferior vena cava
d- oxygen and foods from the placenta to the fetus
( ) 20- Which of the following fetal structures carries the most
oxygenated blood?
a- umbilical arteries
b- foramen ovale
c- ductus arteriosus
d- umbilical vein
e- ductus venosus
( ) 21- What serous membrane encloses the heart?
a- cutaneous membrane
b- pericardium
c- peritoneum
d- pleura
e- synovial membrane
( ) 22- This heart valve prevents the return of blood to the right
atrium from the right ventricle?
a- mitral valve
b- aortic semilunar valve
c- bicuspid valve
d- tricuspid valve
e- pulmonary semilunar valve
( ) 23- Which on of the following blood vessels carries oxygen-rich
blood?
a- pulmonary trunk
b- Coronary sinus
c- pulmonary vein
d- superior vena cava
e- inferior vena cava
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( )24- Identify the final portion of the intrinsic conduction system of
the heart which carries the wave of depolarization over the ventricles
causing them to contract from the heart apex toward the atria?
a- atrioventricular bundle
b- Purkinje fibers
c- bundle branches
d- atrioventricular node
e- sinoatrial node
( )25- Which one of the following blood vessels returns blood to the
left side of the heart or left atrium?
a- coronary sinus
b- pulmonary artery
c- superior vena cava
d- pulmonary vein
e- aorta
( ) 26- Blood exits the right ventricle in which one of the following
blood vessels?
a- pulmonary vein
b- coronary artery
c- aorta
d- pulmonary trunk
e- superior vena cava
( ) 27- Which of the following is involved in anchoring the AV valve
flaps to the walls of the ventricles?
a- Purkinje fibers
b- chordae tendinae
c- cuspidors
d- fenestrations
e- adhesions
( ) 28- Which of the following indicates atrial depolarization in an
electrocardiogram?
a- QT interval
b- U wave
c- P wave
d- T wave
e- QRS complex
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( ) 29-Which of the following would not lead to an increase in
cardiac output?
a- release of epinephrine into the bloodstream
b- an increase in sympathetic stimulation
c- an increase in stroke volume
d- an increase in heart rate
e- a decrease in venous return
( ) 30- Exchanges of nutrients, gases, wastes, etc. between blood and
tissue cells occurs at?
a- capillaries
b- venules
c- veins
d- arterioles
e- arteries
( ) 31- Which of the following blood vessels is NOT part of the
systemic circulation?
a- inferior vena cava
b- carotid arteries
c- pulmonary artery
d- aorta
e- coronary artery
( ) 32- During fetal existence, this short blood vessel connects the
pulmonary trunk to the aorta allowing blood to bypass the fetal lungs
which are nonfunctional?
a- umbilical vein
b- ductus venosus
c- foramen ovale
d- ductus arteriosus
e- umbilical artery
( ) 33- Most often, systemic arterial blood pressure is measured in
this artery using the auscultatory method using a stethoscope and
sphygmomanometer?
a- carotid artery
b- brachial artery
c- femoral artery
d- radial artery
e- aorta
( ) 34- Which of the following conditions is characterized by a rapid
uncoordinated shuddering of the heart muscle?
a- tachycardia
b- bradycardia
c- fibrillation
d- angina pectoris
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e- myocardial infarction
( ) 35- Which of the following would NOT cause an increase in the
heart rate?
a- release of epinephrine into the blood
b- exercise
c- sympathetic stimulation
d- an increase in body temperature
e- stimulation of the vagus nerve
( )36- Which of the following drugs acts in a similar way to the
vagus nerves to slow and steady the heart resulting in a stronger
heartbeat?
a- digitalis
b- angiotensin II
c- thyroxine
d- epinephrine
e- renin
( ) 37- Compared to an artery, the wall of a vein differs in which of
the following ways?
a- It contains smooth muscle
b- It consists of three coats
c- The outer coat is composed largely of collagen fibers
d- The middle coat is thin
e- It is lined by a thin layer of endothelium
( )38- This unique feature connects the anterior and posterior blood
supplies of the brain providing more than one route for blood to
reach brain tissue in a given area?
a- circle of Willis
b- bundle branches
c- coronary circulation
d- ductus arteriosus
e- hepatic portal circulation
( ) 39- Which of the following is NOT true during ventricular
systole?
a- intraventricular pressure rises
b- chordae tendinae prevent AV valve flaps from flipping up into the atria
c- semilunar valves close
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d- the atria are relaxed
e- AV valves close
( ) 40- Which of the following does not aid the return of venous
blood to the heart from the lower extremities?
a- valves in veins
b- the large lumen of veins
c- the muscle "pump''
d- the respiratory "pump''
e- gravity
A
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B
A
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B
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