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WorksheetsCardiovascular System Quiz2
Total questions: 40
Worksheet time: 20mins
The physiologic concepts of hydrodynamics that drive circulation are 1) fluid flows from an area of higher to lower pressure, and 2)
changes in concentration gradient create the most dramatic shifts in fluid flow
pressure must be exerted to move fluid against a concentration gradient
fluid flow is always down a concentration gradient
flow is decreased when resistance is applied
What are the three phases in the cardiac cycle?
atrial systole, atrial diastole, ventricular systole
atrial diastole, atrial systole, ventricular systole
atrial diastole, ventrical diastole, atrial and ventricular systole
relaxation phase, atrial systole, ventricular systole
What role do the intercalated discs found in cardiac muscle play in the contraction of the heart muscle?
Form specialized gap junctions that pass action potentials between fibers
Initiate the action potential that creates contraction.
Form the atrioventricular bundle of the conduction system.
Location of the attachment of motorn neurons the control contraction to the myocardium.
What portion of the cardiac conduction system serves as the pacemaker?
Purkinje fibers
Bundle of His
Atrioventricular node
Sinoatrial node
Which chamber of the heart pumps blood into the pulmonary divisions of circulation?
left atrium
right ventricle
right atrium
left ventricle
What chamber of the heart pumps blood into the aorta?
right atrium
right ventricle
left atrium
left ventricle
Which layer of the heart wall is comprised of striated and involuntary muscle tissue?
myocardium
epicardium
fibrocardium
endocardium
Which of these valves is a semilunar valve?
bicuspid
tricuspid
aortic
none of the above
What is the name of the thin epithelial tissue layer of the heart wall that is the inner surface of each chamber?
visceral pericardium
epicardium
parietal pericardium
endocardium
The systemic circulation begins when blood leaves the ________________ __________________ of the heart and enters the _______________ __________________.
left ventricle; ascending aorta
right atrium; pulmonary artery
right ventricle; pulmonary trunk
left atrium; coronary artery
What is the name of the heart valve located between the right atrium and ventricle?
aortic valve
tricuspid
pulmonic valve
bicuspid
What is happening during the atrial systole phase of the cardiac cycle?
the atria are contracting
the atria are relaxed
the ventricles are contracting
none of the above
What is happening during the ventricular diastole phase of the cardiac cycle?
the ventricles are relaxed.
the ventricles are contracting
the atria are relaxed
none of the above
What is the other anatomical name for the atrioventricular bundle?
Purkinje node
bundle of His
AV node
SA node
Which valve is the left atrioventricular valve?
bicuspid valve
tricuspid valve
semilunar valve
aortic valve
Which layer of the heart is continuous throughout the Circulatory System, all the way through the capillaries?
Epicardium
Endocardium
Myocardium
Pericardium
What division of circulation is defined as the blood flow circuit between the heart and lungs?
Hepatic portal circulation
Coronary circulation
Pulmonary circulation
Systemic circulation
What part of circulation carries blood from the digestive tract to the liver?
Coronary circulation
Pulmonary circulation
Systemic circulation
Hepatic portal circulation
What is the function of the pericardium?
firmly anchors the heart to the primary vessels and thoracic cavity
provides nutrient-waste exchange for the heart
acts as a protective covering that secretes serous fluid to decrease friction over the heart as it contractions
applies external compression to the heart that strengthens contractions
Which chamber of the heart pumps blood into the systemic circulation?
Right atrium
Left atrium
Left ventricle
Right ventricle
Which chamber of the heart receives blood from the inferior vena cava?
Right atrium
Left atrium
Left ventricle
Right ventricle
Which of the following is related to 'PQRST' waves?
Electrocardiogram
Electrocardiographic kinetic graph
Part of the alphabet after 'O'
Electroencephalography
The 'lub' part of the heart sound is created by the closing of which heart valves?
Bicuspid valve only
Aortic valve only
AV valves
Semilunar valves
The 'dubb' part of the heart sound is created by the closing of which heart valves?
AV valves
Bicuspid valve only
Aortic valve only
Semilunar valves
The visceral pericardium is also known as the:
Epicardium
Pericardium
Endocardium
None of the above
According to the textbook what is the average resting heart rate range?
12-20 beats per minute
100 beats per minute
72-84 beats per minute
60-80 beats per minute
What accounts for the fact that the SA node self-generates 100 beats per minute but the average heart rate is much slower?
Parasympathetic stimulation
Somatomotor cortex of the cerebrum
Medulla oblongata does not control heart rate
Sympathetic stimulation
Which of the following characteristics of chest pain are more likely related to heart attack?
Chest pain that lasts several minutes then subsides
Chest pain that progressively worsens
Chest pain that may or may not be triggered by activity
Chest pain that stops when activity stops
Which blood vessel obstruction would cause a myocardial infarction?
Saphenous vein
Coronary artery
Pulmonary artery
Aorta
What is the end result of a heart attack?
Stroke or embolism
Scarring of myocardium
Death of the person
Fibrillation
Which of the following is used to identify the causes of abnormal heart rhythms and heart attacks?
Electroencephalogram
Electrocardiogram
Mammogram
Sonogram
Which of the following is most predictive of heart attack risk?
Unstable angina
Blood cholesterol levels
Stable angina
Blood pressure
The build up of fatty deposits inside arteries is?
Cor pulmonale
Angina Pectoris
Arteriosclerosis
Atherosclerosis
Hardening of the arteries due to mineral deposits inside arteries is?
Cor pulmonale
Atherosclerosis
Arteriosclerosis
Angina Pectoris
Enlargement of the right ventricle muscle wall of the heart due to resistance in the lungs due to lung disease:
Pulmonary edema
Cor pulmonale
Cardiomyopathy
Angina pectoris
Shortness of breath and stubborn coughing related to the back up of blood into the pulmonary circulation:
Left-sided heart failure
Right-sided heart failure
Angina pectoris
Cor pulmonale
A process that damages a portion of the cardiac muscle through ischemia leading to an infarct:
Cardiomyopathy
Heart attack
Unstable Angina
Stroke
Which of the following statements is true regarding heart attacks?
All people who have heart attacks have atherosclerosis.
Most people who have heart attacks have high blood pressure and high cholesterol.
Up to one half of all people who have a heart attack have no medical history of problems and no memory of warning symptoms.
Lowering cholesterol greatly reduces the risk of heart attack.
In this condition the heart can get enough oxygen to perform regular tasks but extra effort causes moderate to severe predictable chest pain that is relieved by rest and/or medication:
Stable angina
Left or right-sided heart failure
Myocardial infarction
Unstable angina
Heart performance is temporarily boosted in response to increased peripheral resistance, thereby increasing blood pressure:
Congestive heart failure
Myocardial infarction
Angina
Epinephrine and norepinephrine released by the adrenal glands
