Question 1

The T wave on an ECG tracing represents

Accepted Answer

A) atrial depolarization. 
B) atrial repolarization. 
C) ventricular depolarization. 
D) ventricular repolarization. 
E) ventricular contraction. 
A) atrial depolarization. 
B) atrial repolarization. 
C) ventricular depolarization. 
D) ventricular repolarization. 
E) ventricular contraction.

Question 2

Which of these is true about the atrial reflex?

Accepted Answer

A) also called Bainbridge reflex 
B) triggered by atrial mechanoreceptors 
C) triggered by increasing venous return 
D) depends on sympathetic innervation 
E) All of the answers are correct. 
A) also called Bainbridge reflex 
B) triggered by atrial mechanoreceptors 
C) triggered by increasing venous return 
D) depends on sympathetic innervation 
E) All of the answers are correct.

Question 3

The function of an atrium is to

Accepted Answer

A) collect blood. 
B) pump blood to the lungs. 
C) pump blood into the systemic circuit. 
D) pump blood to the ventricle. 
E) collect blood then pump it to the ventricle. 
A) collect blood. 
B) pump blood to the lungs. 
C) pump blood into the systemic circuit. 
D) pump blood to the ventricle. 
E) collect blood then pump it to the ventricle.

Question 4

Blood flowing into the heart from the venae cavae flows next through the ________ valve.

Accepted Answer

A) mitral 
B) bicuspid 
C) tricuspid 
D) pulmonary semilunar 
E) aortic semilunar 
A) mitral 
B) bicuspid 
C) tricuspid 
D) pulmonary semilunar 
E) aortic semilunar

Question 5

The first heart sound is heard when the

Accepted Answer

A) AV valves open. 
B) AV valves close. 
C) semilunar valves close. 
D) atria contract. 
E) blood enters the aorta. 
A) AV valves open. 
B) AV valves close. 
C) semilunar valves close. 
D) atria contract. 
E) blood enters the aorta.

Question 6

The property of heart muscle to contract in the absence of neural or hormonal stimulation is called ________.

Accepted Answer

automatici

Question 7

The ________ is the amount of blood in a ventricle after it has contracted and before it begins to refill.

Accepted Answer

The answer of The ________ is the amount of blood...

Question 8

The great and middle cardiac veins drain blood into the

Accepted Answer

A) superior vena cava. 
B) inferior vena cava. 
C) coronary sinus. 
D) coronary sulcus. 
E) aorta. 
A) superior vena cava. 
B) inferior vena cava. 
C) coronary sinus. 
D) coronary sulcus. 
E) aorta.

Question 9

________ is the symptom generally brought on by coronary ischemia.(Note: Be sure to capitalize the first letter of your answer).

Accepted Answer

The answer of ________ is the symptom generally brought on...

Question 10

The pulmonary semilunar valve prevents backward flow into the

Accepted Answer

A) aorta. 
B) pulmonary trunk. 
C) pulmonary veins. 
D) right ventricle. 
E) left atrium. 
A) aorta. 
B) pulmonary trunk. 
C) pulmonary veins. 
D) right ventricle. 
E) left atrium.

Question 11

If the connection between the SA node and AV node becomes blocked,

Accepted Answer

A) the ventricles will beat faster. 
B) the ventricles will beat more slowly. 
C) the ventricular beat will remain unchanged. 
D) cardiac output will increase. 
E) the atria will contract more forcefully. 
A) the ventricles will beat faster. 
B) the ventricles will beat more slowly. 
C) the ventricular beat will remain unchanged. 
D) cardiac output will increase. 
E) the atria will contract more forcefully.

Question 12

The bicuspid or mitral valve is located

Accepted Answer

A) in the opening of the aorta. 
B) in the opening of the pulmonary trunk. 
C) where the venae cavae join the right atrium. 
D) between the right atrium and right ventricle. 
E) between the left atrium and left ventricle. 
A) in the opening of the aorta. 
B) in the opening of the pulmonary trunk. 
C) where the venae cavae join the right atrium. 
D) between the right atrium and right ventricle. 
E) between the left atrium and left ventricle.

Question 13

The first heart sound ("lub")

Accepted Answer

A) is associated with atrial systole. 
B) is associated with closing of the mitral valve. 
C) is associated with opening of the mitral valve. 
D) is associated with closing of the aortic valve. 
E) is associated with opening of the aortic valve. 
A) is associated with atrial systole. 
B) is associated with closing of the mitral valve. 
C) is associated with opening of the mitral valve. 
D) is associated with closing of the aortic valve. 
E) is associated with opening of the aortic valve.

Question 14

Considering the left ventricle,why does isovolumetric ventricular contraction occur during ventricular systole?

Accepted Answer

A) The ventricle needs to pressurize the blood to close the aortic valve. 
B) Ventricular pressure is greater than atrial pressure so the ventricle cannot eject blood. 
C) The bicuspid valve needs time to shut before the ventricle can eject blood. 
D) Aortic pressure is higher than ventricular pressure and the ventricle must pressurize the blood to open the aortic valve. 
E) The ventricle is still filling with blood and therefore cannot eject blood during this time. 
A) The ventricle needs to pressurize the blood to close the aortic valve. 
B) Ventricular pressure is greater than atrial pressure so the ventricle cannot eject blood. 
C) The bicuspid valve needs time to shut before the ventricle can eject blood. 
D) Aortic pressure is higher than ventricular pressure and the ventricle must pressurize the blood to open the aortic valve. 
E) The ventricle is still filling with blood and therefore cannot eject blood during this time.

Question 15

The term used to describe fluid collecting in the pericardial cavity that restricts the movement of the heart is known as

Accepted Answer

A) cardiac tamponade. 
B) mitral valve prolapse. 
C) pleural effusion. 
D) cardiomyopathy. 
E) pericarditis. 
A) cardiac tamponade. 
B) mitral valve prolapse. 
C) pleural effusion. 
D) cardiomyopathy. 
E) pericarditis.

Question 16

A patient's ECG recording shows a very long P-R interval.What is the cause of this abnormal wave pattern?

Accepted Answer

The P wave marks the time of atrial depo

Question 17

The following is a list of vessels and structures that are associated with the heart. 1.right atrium
2)left atrium
3)right ventricle
4)left ventricle
5)venae cavae
6)aorta
7)pulmonary trunk
8)pulmonary veins
What is the correct order for the flow of blood entering from the systemic circulation?

Accepted Answer

A) 1,2,7,8,3,4,6,5 
B) 1,7,3,8,2,4,6,5 
C) 5,1,3,7,8,2,4,6 
D) 5,3,1,7,8,4,2,6 
E) 5,1,3,8,7,2,4,6 
A) 1,2,7,8,3,4,6,5 
B) 1,7,3,8,2,4,6,5 
C) 5,1,3,7,8,2,4,6 
D) 5,3,1,7,8,4,2,6 
E) 5,1,3,8,7,2,4,6

Question 18

The pulmonary veins carry blood to the

Accepted Answer

A) heart. 
B) lungs. 
C) brain. 
D) intestines. 
E) liver. 
A) heart. 
B) lungs. 
C) brain. 
D) intestines. 
E) liver.

Question 19

Blood is supplied to the left atrium by the

Accepted Answer

A) brachiocephalic artery. 
B) right coronary artery. 
C) left coronary artery. 
D) phrenic arteries. 
E) pulmonary arteries. 
A) brachiocephalic artery. 
B) right coronary artery. 
C) left coronary artery. 
D) phrenic arteries. 
E) pulmonary arteries.

Question 20

The normal pacemaker of the heart is located in

Accepted Answer

A) the Purkinje fibers. 
B) the sinoatrial node. 
C) the atrioventricular node. 
D) the wall of the left ventricle. 
E) both the left and right ventricles. 
A) the Purkinje fibers. 
B) the sinoatrial node. 
C) the atrioventricular node. 
D) the wall of the left ventricle. 
E) both the left and right ventricles.

Exam 20: The Heart

The T wave on an ECG tracing represents

Which of these is true about the atrial reflex?

The function of an atrium is to

Blood flowing into the heart from the venae cavae flows next through the ________ valve.

The first heart sound is heard when the

The property of heart muscle to contract in the absence of neural or hormonal stimulation is called ________.

The ________ is the amount of blood in a ventricle after it has contracted and before it begins to refill.

The great and middle cardiac veins drain blood into the

________ is the symptom generally brought on by coronary ischemia.(Note: Be sure to capitalize the first letter of your answer).

The pulmonary semilunar valve prevents backward flow into the

If the connection between the SA node and AV node becomes blocked,

The bicuspid or mitral valve is located

The first heart sound ("lub")

Considering the left ventricle,why does isovolumetric ventricular contraction occur during ventricular systole?

The term used to describe fluid collecting in the pericardial cavity that restricts the movement of the heart is known as

A patient's ECG recording shows a very long P-R interval.What is the cause of this abnormal wave pattern?

The following is a list of vessels and structures that are associated with the heart. 1.right atrium 2)left atrium 3)right ventricle 4)left ventricle 5)venae cavae 6)aorta 7)pulmonary trunk 8)pulmonary veins What is the correct order for the flow of blood entering from the systemic circulation?

The pulmonary veins carry blood to the

Blood is supplied to the left atrium by the

The normal pacemaker of the heart is located in

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration I: Sensory Pathways and the Somatic Nervous System

Neural Integration Ii: the Autonomic Nervous System and

The Special Senses

The Endocrine System

Blood

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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