Question 1

Which of the following chambers of the heart is surrounded by the thickest layer of myocardium?

Accepted Answer

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

Question 2

Which structure in the figure is labeled A?

Accepted Answer

A) left common carotid artery 
B) left subclavian artery 
C) left pulmonary vein 
D) mitral valve 
A) left common carotid artery 
B) left subclavian artery 
C) left pulmonary vein 
D) mitral valve

Question 3

Through which structure does blood pass from the right atrium to the right ventricle?

Accepted Answer

A) Bicuspid valve 
B) Interventricular septum 
C) Tricuspid valve 
D) Mitral valve 
E) Ascending aorta 
A) Bicuspid valve 
B) Interventricular septum 
C) Tricuspid valve 
D) Mitral valve 
E) Ascending aorta

Question 4

In the diagram,which labeled structure prevents blood flow from the right ventricle back into the right atrium?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Question 5

Which labeled structure shown in the diagram is a remnant of fetal circulation that is not directly involved in adult circulation?

Accepted Answer

A) A 
B) B 
C) H 
D) D 
E) E 
A) A 
B) B 
C) H 
D) D 
E) E

Question 6

Identify the structure found in a fetus that allows blood to flow directly from the pulmonary trunk into the aorta.

Accepted Answer

A) Fossa ovalis 
B) Foramen ovale 
C) Trabeculae carneae 
D) Descending aorta 
E) Ductus arteriosus 
A) Fossa ovalis 
B) Foramen ovale 
C) Trabeculae carneae 
D) Descending aorta 
E) Ductus arteriosus

Question 7

The outermost layer of the pericardium,which consists of inelastic dense irregular connective tissue,is called the

Accepted Answer

A) parietal layer of pericardium. 
B) serous pericardium. 
C) fibrous pericardium. 
D) epicardium. 
E) endocardium. 
A) parietal layer of pericardium. 
B) serous pericardium. 
C) fibrous pericardium. 
D) epicardium. 
E) endocardium.

Question 8

Identify the pouch-like structure that increases the total filling capacity of the atrium.

Accepted Answer

A) Ventricle 
B) Coronary sulcus 
C) Fossa ovalis 
D) Interatrial septum 
E) Auricle. 
A) Ventricle 
B) Coronary sulcus 
C) Fossa ovalis 
D) Interatrial septum 
E) Auricle.

Question 9

During which of following periods does the largest volume of blood enter the arteries?

Accepted Answer

A) atrial diastole 
B) ventricular diastole 
C) atrial systole 
D) ventricular systole 
A) atrial diastole 
B) ventricular diastole 
C) atrial systole 
D) ventricular systole

Question 10

Which layer of the heart wall consists of mesothelium and connective tissue?

Accepted Answer

A) Epicardium 
B) Myocardium 
C) Endocardium 
D) Fibrous pericardium 
E) None of the answer selections are correct 
A) Epicardium 
B) Myocardium 
C) Endocardium 
D) Fibrous pericardium 
E) None of the answer selections are correct

Question 11

Discuss the common nutrient sources used by cardiac muscle to produce ATP in a resting individual.

Accepted Answer

At rest,the heart relies exclusively on

Question 12

Which of the following terms identifies the anatomical region found between the lungs that extends from the sternum to the vertebral column and from the first rib to the diaphragm?

Accepted Answer

A) Epicardium 
B) Abdominal cavity 
C) Pericardium 
D) Mediastinum 
E) Thoracic cavity 
A) Epicardium 
B) Abdominal cavity 
C) Pericardium 
D) Mediastinum 
E) Thoracic cavity

Question 13

Briefly describe why cardiac tissue cannot repair itself after damage?

Accepted Answer

Cardiac muscle lacks stem cell

Question 14

Which labeled structure in the figure is the AV node?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
E) E 
A) A 
B) B 
C) C 
D) D 
E) E

Exam 20: The Cardiovascular System: the Heart

Which of the following chambers of the heart is surrounded by the thickest layer of myocardium?

Which structure in the figure is labeled A?

Through which structure does blood pass from the right atrium to the right ventricle?

In the diagram,which labeled structure prevents blood flow from the right ventricle back into the right atrium?

Which labeled structure shown in the diagram is a remnant of fetal circulation that is not directly involved in adult circulation?

Identify the structure found in a fetus that allows blood to flow directly from the pulmonary trunk into the aorta.

The outermost layer of the pericardium,which consists of inelastic dense irregular connective tissue,is called the

Identify the pouch-like structure that increases the total filling capacity of the atrium.

During which of following periods does the largest volume of blood enter the arteries?

Which layer of the heart wall consists of mesothelium and connective tissue?

Discuss the common nutrient sources used by cardiac muscle to produce ATP in a resting individual.

Which of the following terms identifies the anatomical region found between the lungs that extends from the sternum to the vertebral column and from the first rib to the diaphragm?

Briefly describe why cardiac tissue cannot repair itself after damage?

Which labeled structure in the figure is the AV node?

An Introduction to the Human Body

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System Unit Ii: Principles of Support and Movement

The Skeletal System: Bone Tissue

The Skeletal System: the Axial Skeleton

The Skeletal System: the Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System Unit Iii: Control Systems of the Human Body

Nervous Tissue

The Spinal Cord and Spinal Nerves

The Brain and Cranial Nerves

The Autonomic Nervous System

Sensory, Motor and Integrative Systems

The Special Senses

The Endocrine System Unit Iv: Maintenance of the Human Body

The Cardiovascular System: the Blood

The Cardiovascular System: Blood Vessels and Hemodynamics

The Lymphatic System, Nonspecific Resistance to Disease, and Immunity

The Respiratory System

The Digestive System

Metabolism

The Urinary System

Fluid, Electrolyte, and Acid-Base Homeostasis Unit V: Continuity

The Reproductive Systems

Development and Inheritance

Filters