Question 1

Which of the following is NOT part of the conducting system of the heart?

Accepted Answer

A)  bundle of His 
B)  AV node 
C)  SA node 
D)  AV valve 
A)  bundle of His 
B)  AV node 
C)  SA node 
D)  AV valve D

Question 2

Trace the order of electrical excitation of the heart.

Accepted Answer

A)  AV node, SA node, AV bundle, bundle branches 
B)  SA node, AV bundle, AV node, bundle branches 
C)  SA node, AV node, AV bundle, bundle branches 
D)  none of the above 
A)  AV node, SA node, AV bundle, bundle branches 
B)  SA node, AV bundle, AV node, bundle branches 
C)  SA node, AV node, AV bundle, bundle branches 
D)  none of the above C

Question 3

Select the correct statement about the heart valves.

Accepted Answer

A)  Aortic and pulmonary valves control the blood flow into the heart. 
B)  The mitral valve separates the right atrium from the right ventricle. 
C)  The AV valves are supported by the chordae tendineae so that blood does not flow back into the atria during ventricular contraction. 
D)  The tricuspid valve separates the left atrium from the left ventricle. 
A)  Aortic and pulmonary valves control the blood flow into the heart. 
B)  The mitral valve separates the right atrium from the right ventricle. 
C)  The AV valves are supported by the chordae tendineae so that blood does not flow back into the atria during ventricular contraction. 
D)  The tricuspid valve separates the left atrium from the left ventricle. C

Question 4

What is the deep groove between the right atrium and right ventricle that extends to the posterior surface?

Accepted Answer

A)  anterior interventricular sulcus 
B)  posterior interventricular sulcus 
C)  coronary sulcus 
D)  none of the above 
A)  anterior interventricular sulcus 
B)  posterior interventricular sulcus 
C)  coronary sulcus 
D)  none of the above

Question 5

The wall of the left ventricle is thicker than the right ventricle in order to ________.

Accepted Answer

A)  pump blood with greater pressure 
B)  accommodate a greater volume of blood 
C)  pump blood through a smaller valve 
D)  expand the thoracic cage 
A)  pump blood with greater pressure 
B)  accommodate a greater volume of blood 
C)  pump blood through a smaller valve 
D)  expand the thoracic cage

Question 6

What is the outermost layer of the heart?

Accepted Answer

A)  endocardium 
B)  myocardium 
C)  epicardium 
D)  parietal pericardium 
A)  endocardium 
B)  myocardium 
C)  epicardium 
D)  parietal pericardium

Question 7

Deoxygenated blood enters which side of the heart?

Accepted Answer

A)  neither side 
B)  right side 
C)  left side 
D)  both sides 
A)  neither side 
B)  right side 
C)  left side 
D)  both sides

Question 8

Which of the following statements is correct about the structure of the heart wall?

Accepted Answer

A)  The myocardium is the layer of the heart wall that contracts. 
B)  The heart chambers are lined by endomysium. 
C)  Connective tissue in the heart helps in conduction of the action potential. 
D)  The fibrous skeleton forms the bulk of the heart. 
A)  The myocardium is the layer of the heart wall that contracts. 
B)  The heart chambers are lined by endomysium. 
C)  Connective tissue in the heart helps in conduction of the action potential. 
D)  The fibrous skeleton forms the bulk of the heart.

Question 9

What is the serous membrane that surrounds the heart?

Accepted Answer

A)  peritoneum 
B)  pleural cavity 
C)  pericardium 
D)  none of the above 
A)  peritoneum 
B)  pleural cavity 
C)  pericardium 
D)  none of the above

Question 10

Where is the fossa ovalis?

Accepted Answer

A)  left atrium 
B)  interatrial septum 
C)  right atrium 
D)  interventricular septum 
A)  left atrium 
B)  interatrial septum 
C)  right atrium 
D)  interventricular septum

Question 11

Blood within the pulmonary veins returns to the ________

Accepted Answer

A)  right atrium 
B)  left atrium 
C)  right ventricle 
D)  left ventricle 
A)  right atrium 
B)  left atrium 
C)  right ventricle 
D)  left ventricle

Question 12

Small muscle masses attached to the chordae tendineae are the ________.

Accepted Answer

A)  trabeculae carnea 
B)  venae cavae 
C)  papillary muscles 
D)  pectinate muscles 
A)  trabeculae carnea 
B)  venae cavae 
C)  papillary muscles 
D)  pectinate muscles

Question 13

The source of blood carried to the capillaries in the myocardium would be the ________.

Accepted Answer

A)  coronary veins 
B)  coronary arteries 
C)  fossa ovalis 
D)  coronary sinus 
A)  coronary veins 
B)  coronary arteries 
C)  fossa ovalis 
D)  coronary sinus

Question 14

The left coronary artery supplies blood to all the following EXCEPT ________.

Accepted Answer

A)  interventricular septum 
B)  left ventricle 
C)  left atrium 
D)  right atrium 
A)  interventricular septum 
B)  left ventricle 
C)  left atrium 
D)  right atrium

Question 15

When viewing a dissected sheep heart, it is easy to discern the right and left ventricles by ________.

Accepted Answer

A)  locating the apex 
B)  tracing where the auricles connect 
C)  finding the papillary muscles 
D)  the thickness of the ventricle walls 
A)  locating the apex 
B)  tracing where the auricles connect 
C)  finding the papillary muscles 
D)  the thickness of the ventricle walls

Question 16

Cardiac muscle ________.

Accepted Answer

A)  has more than one nuclei per cell 
B)  has gap junctions and intercalated discs 
C)  lacks striations 
D)  none of the above 
A)  has more than one nuclei per cell 
B)  has gap junctions and intercalated discs 
C)  lacks striations 
D)  none of the above

Question 17

What are the first vessels to branch off of the base of the ascending aorta and penetrate the myocardium of the heart wall?

Accepted Answer

A)  anterior interventricular artery 
B)  coronary arteries 
C)  cardiac veins 
D)  none of the above 
A)  anterior interventricular artery 
B)  coronary arteries 
C)  cardiac veins 
D)  none of the above

Question 18

Which vessels collect deoxygenated blood from the myocardium?

Accepted Answer

A)  atrial arteries 
B)  marginal arteries 
C)  coronary veins 
D)  coronary arteries 
A)  atrial arteries 
B)  marginal arteries 
C)  coronary veins 
D)  coronary arteries

Question 19

What is the pacemaker of the heart?

Accepted Answer

A)  AV node 
B)  bundle of His 
C)  Purkinje fibers 
D)  SA node 
A)  AV node 
B)  bundle of His 
C)  Purkinje fibers 
D)  SA node

Exam 35: Anatomy of the Heart

Which of the following is NOT part of the conducting system of the heart?

Trace the order of electrical excitation of the heart.

Select the correct statement about the heart valves.

What is the deep groove between the right atrium and right ventricle that extends to the posterior surface?

The wall of the left ventricle is thicker than the right ventricle in order to ________.

What is the outermost layer of the heart?

Deoxygenated blood enters which side of the heart?

Which of the following statements is correct about the structure of the heart wall?

What is the serous membrane that surrounds the heart?

Where is the fossa ovalis?

Blood within the pulmonary veins returns to the ________

Small muscle masses attached to the chordae tendineae are the ________.

The source of blood carried to the capillaries in the myocardium would be the ________.

The left coronary artery supplies blood to all the following EXCEPT ________.

When viewing a dissected sheep heart, it is easy to discern the right and left ventricles by ________.

Cardiac muscle ________.

What are the first vessels to branch off of the base of the ascending aorta and penetrate the myocardium of the heart wall?

Which vessels collect deoxygenated blood from the myocardium?

What is the pacemaker of the heart?

Laboratory Safety

Introduction to the Human Body

Organ Systems Overview

Use of the Microscope

Anatomy of the Cell and Cell Division

Movement Across Plasma Membranes

Epithelial Tissue

Connective Tissue

Muscle Tissue

Neural Tissue

Integumentary System

Body Membranes

Organization of the Skeletal System

Axial Skeleton

Appendicular Skeleton

Articulations

Organization of Skeletal Muscles

Muscles of the Head and Neck

Muscles of the Vertebral Column, Abdomen, and Pelvis

Muscles of the Pectoral Girdle and Upper Limb

Muscles of the Pelvic Girdle and Lower Limb

Muscle Physiology

Organization of the Nervous System

Spinal Cord, Spinal Nerves, and Reflexes

Anatomy of the Brain

Autonomic Nervous System

General Senses

Special Senses

Anatomy of the Eye

Physiology of the Eye

Anatomy of the Ear

Physiology of the Ear

Endocrine System

Blood

Anatomy of the Systemic Circulation

Cardiovascular Physiology

Lymphatic System

Anatomy of the Respiratory System

Physiology of the Respiratory System

Anatomy of the Digestive System

Digestive Physiology

Anatomy of the Urinary System

Physiology of the Urinary System

Anatomy of the Reproductive System

Development

Surface Anatomy

Pig Muscular System

Pig Nervous System

Pig Endocrine System

Pig Circulatory System

Pig Lymphatic System

Pig Respiratory System

Pig Digestive System

Pig Urinary System

Pig Reproductive System

Cat Muscular System

Cat Nervous System

Cat Endocrine System

Cat Circulatory System

Cat Lymphatic System