Question 1

Which of the following are involved in the pulmonary circuit?

Accepted Answer

A) superior vena cava,right atrium,left ventricle 
B) right ventricle,pulmonary veins,aorta 
C) right ventricle,pulmonary trunk,left atrium 
D) inferior vena cava,right atrium,aorta 
E) left ventricle,pulmonary veins,right atrium 
A) superior vena cava,right atrium,left ventricle 
B) right ventricle,pulmonary veins,aorta 
C) right ventricle,pulmonary trunk,left atrium 
D) inferior vena cava,right atrium,aorta 
E) left ventricle,pulmonary veins,right atrium

Question 2

Drugs known as calcium channel blockers such as nifedipine can be used to

Accepted Answer

A) decrease the force of cardiac contraction. 
B) decrease blood pressure. 
C) dilate the coronary arteries. 
D) produce a negative inotropic effect. 
E) All of the answers are correct. 
A) decrease the force of cardiac contraction. 
B) decrease blood pressure. 
C) dilate the coronary arteries. 
D) produce a negative inotropic effect. 
E) All of the answers are correct.

Question 3

Which event occurs during ventricular systole?

Accepted Answer

A) closing of the bicuspid and tricuspid valves 
B) closing of the semilunar valves 
C) the second heart sound 
D) release of an action potential from the sinoatrial node 
E) expansion of the ventricles 
A) closing of the bicuspid and tricuspid valves 
B) closing of the semilunar valves 
C) the second heart sound 
D) release of an action potential from the sinoatrial node 
E) expansion of the ventricles

Question 4

The right pulmonary veins carry ________ blood to the ________.

Accepted Answer

A) deoxygenated; left atrium 
B) oxygenated; right lung 
C) deoxygenated; superior vena cava 
D) deoxygenated; right atrium 
E) oxygenated; left atrium 
A) deoxygenated; left atrium 
B) oxygenated; right lung 
C) deoxygenated; superior vena cava 
D) deoxygenated; right atrium 
E) oxygenated; left atrium

Question 5

Activation of which kind of receptor causes heart rate to increase?

Accepted Answer

A) alpha-one 
B) beta-one 
C) muscarinic 
D) beta-two 
E) preganglionic 
A) alpha-one 
B) beta-one 
C) muscarinic 
D) beta-two 
E) preganglionic

Question 6

Pacemaker cells in the SA node

Accepted Answer

A) have a well-defined resting potential. 
B) can spontaneously depolarize. 
C) also contract with the rest of the cells in the heart wall. 
D) are special neurons that convey signals from the brain to the heart. 
E) All of the answers are correct. 
A) have a well-defined resting potential. 
B) can spontaneously depolarize. 
C) also contract with the rest of the cells in the heart wall. 
D) are special neurons that convey signals from the brain to the heart. 
E) All of the answers are correct.

Question 7

________ is the symptom generally brought on by coronary ischemia.

Accepted Answer

A) Angina pectoris 
B) Shortness of breath 
C) A rash 
D) Hematuria 
E) Fluid in the lungs 
A) Angina pectoris 
B) Shortness of breath 
C) A rash 
D) Hematuria 
E) Fluid in the lungs

Question 8

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 9

Cells that spontaneously make action potentials make up ________ tissue.

Accepted Answer

A) contractile 
B) conductive 
C) intercalated 
D) pacemaker 
E) internodal 
A) contractile 
B) conductive 
C) intercalated 
D) pacemaker 
E) internodal

Question 10

Which of the following is true about the atrial reflex?

Accepted Answer

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

Question 11

The space between the pleural cavities is called the

Accepted Answer

A) mediastinum. 
B) subcardium. 
C) endocardium. 
D) myocardium. 
E) epicardium. 
A) mediastinum. 
B) subcardium. 
C) endocardium. 
D) myocardium. 
E) epicardium.

Question 12

Analysis of the electrocardiogram can reveal all of the following except

Accepted Answer

A) heart rate. 
B) stroke volume. 
C) the condition of the conducting system. 
D) the effects of drugs and poisons. 
E) the duration of the ventricular action potential. 
A) heart rate. 
B) stroke volume. 
C) the condition of the conducting system. 
D) the effects of drugs and poisons. 
E) the duration of the ventricular action potential.

Question 13

"An increase in end-diastolic volume increases the stroke volume" is a way of stating ________ law of the heart.

Accepted Answer

A) Robin's 
B) Finch's 
C) Starling's 
D) Sparrow's 
E) Hawking's 
A) Robin's 
B) Finch's 
C) Starling's 
D) Sparrow's 
E) Hawking's

Question 14

The ________ carry blood toward the heart.

Accepted Answer

A) arterioles 
B) arteries 
C) veins 
D) lacteals 
E) capillaries 
A) arterioles 
B) arteries 
C) veins 
D) lacteals 
E) capillaries

Question 15

The coronary sulcus is a groove that

Accepted Answer

A) marks the border between the atria and ventricles. 
B) marks the boundary line between the right and left ventricles. 
C) marks the boundary line between the right and left atria. 
D) separates the atrioventricular valves from the atria. 
E) separates the coronary arteries from the coronary veins. 
A) marks the border between the atria and ventricles. 
B) marks the boundary line between the right and left ventricles. 
C) marks the boundary line between the right and left atria. 
D) separates the atrioventricular valves from the atria. 
E) separates the coronary arteries from the coronary veins.

Question 16

Which of the following statements is true regarding cardiac muscle?

Accepted Answer

A) Its main source of ATP production is glycogen. 
B) The actin and myosin myofilaments are not arranged in sarcomeres. 
C) Cardiac muscle preferentially metabolizes anaerobically. 
D) There are specialized gap junctions in cardiac muscle not found in skeletal or smooth muscles. 
E) Cardiac muscle goes into sustained contractions faster than skeletal muscle. 
A) Its main source of ATP production is glycogen. 
B) The actin and myosin myofilaments are not arranged in sarcomeres. 
C) Cardiac muscle preferentially metabolizes anaerobically. 
D) There are specialized gap junctions in cardiac muscle not found in skeletal or smooth muscles. 
E) Cardiac muscle goes into sustained contractions faster than skeletal muscle.

Question 17

When a blood clot forms on a ruptured plaque in a coronary artery,the condition is referred to as a(n)

Accepted Answer

A) coronary spasm. 
B) myocardial infarction. 
C) coronary thrombosis. 
D) angina pectoris. 
E) pulmonary embolism. 
A) coronary spasm. 
B) myocardial infarction. 
C) coronary thrombosis. 
D) angina pectoris. 
E) pulmonary embolism.

Question 18

The cardioacceleratory center activates sympathetic neurons and the cardioinhibitory center controls parasympathetic neurons.

Accepted Answer

A) The first part of the statement is true but the second part is false. 
B) The first part of the statement is false but the second part is true. 
C) Both parts of the statement are true. 
D) Both parts of the statement are false. 
E) The first part is always true,but the second part is sometimes true. 
A) The first part of the statement is true but the second part is false. 
B) The first part of the statement is false but the second part is true. 
C) Both parts of the statement are true. 
D) Both parts of the statement are false. 
E) The first part is always true,but the second part is sometimes true.

Question 19

A procedure in which a length of the patient's vein or artery is used to create a detour around an obstruction in a coronary artery is called

Accepted Answer

A) balloon angioplasty. 
B) coronary arterial bypass graft. 
C) intravenous catheterization. 
D) ablation. 
E) atherectomy. 
A) balloon angioplasty. 
B) coronary arterial bypass graft. 
C) intravenous catheterization. 
D) ablation. 
E) atherectomy.

Question 20

The ________ deliver(s)blood to the myocardium.

Accepted Answer

A) coronary arteries 
B) cardiac veins 
C) superior vena cava 
D) carotid arteries 
E) coronary sinus 
A) coronary arteries 
B) cardiac veins 
C) superior vena cava 
D) carotid arteries 
E) coronary sinus

Exam 20: The Heart

Which of the following are involved in the pulmonary circuit?

Drugs known as calcium channel blockers such as nifedipine can be used to

Which event occurs during ventricular systole?

The right pulmonary veins carry ________ blood to the ________.

Activation of which kind of receptor causes heart rate to increase?

Pacemaker cells in the SA node

________ is the symptom generally brought on by coronary ischemia.

The pulmonary veins carry blood to the

Cells that spontaneously make action potentials make up ________ tissue.

Which of the following is true about the atrial reflex?

The space between the pleural cavities is called the

Analysis of the electrocardiogram can reveal all of the following except

"An increase in end-diastolic volume increases the stroke volume" is a way of stating ________ law of the heart.

The ________ carry blood toward the heart.

The coronary sulcus is a groove that

Which of the following statements is true regarding cardiac muscle?

When a blood clot forms on a ruptured plaque in a coronary artery,the condition is referred to as a(n)

The cardioacceleratory center activates sympathetic neurons and the cardioinhibitory center controls parasympathetic neurons.

A procedure in which a length of the patient's vein or artery is used to create a detour around an obstruction in a coronary artery is called

The ________ deliver(s)blood to the myocardium.

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

Joints

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

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

Filters

The right pulmonary veins carry blood to the .