Question 1

One reason that necessitates the relatively early development of the heart is that the embryo has become too large to receive adequate nutrient supply by diffusion alone.

Accepted Answer

A) True 
 B)False

Question 2

Which analogy fits the human heart?

Accepted Answer

A) It is like a single pump. 
B) It is like a double pump,each working side by side with the other. 
C) It is like four pumps working in alternating cycles. 
D) It is like a double pump,each working at its own rate determined by the needs of the body served. 
E) It is like a single pump whose various chambers all work together at once. 
A) It is like a single pump. 
B) It is like a double pump,each working side by side with the other. 
C) It is like four pumps working in alternating cycles. 
D) It is like a double pump,each working at its own rate determined by the needs of the body served. 
E) It is like a single pump whose various chambers all work together at once.

Question 3

The _______________ cardiac vein travels alongside the right marginal artery.

Accepted Answer

The answer of The _______________ cardiac vein travels alongside the...

Question 4

The ______________ circuit consists of the chambers on the right side of the heart as well as the pulmonary arteries and veins.

Accepted Answer

The answer of The ______________ circuit consists of the chambers...

Question 5

The arteries and veins that leave and enter the heart are called the great vessels because

Accepted Answer

A) they are associated with the heart directly. 
B) they carry the most highly oxygenated blood. 
C) they are longer than any other blood vessels in the body. 
D) they have relatively large diameters. 
E) Both types have the highest blood pressure in the body. 
A) they are associated with the heart directly. 
B) they carry the most highly oxygenated blood. 
C) they are longer than any other blood vessels in the body. 
D) they have relatively large diameters. 
E) Both types have the highest blood pressure in the body.

Question 6

The beginning of the cardiac cycle is when the

Accepted Answer

A) atria fill with blood. 
B) ventricles fill with blood. 
C) atria contract. 
D) two semilunar valves close. 
E) ventricles contract. 
A) atria fill with blood. 
B) ventricles fill with blood. 
C) atria contract. 
D) two semilunar valves close. 
E) ventricles contract.

Question 7

One example of cardiac arrhythmia is _________,in which a rapid,repetitious movement of the ventricular muscle replaces normal contractions.

Accepted Answer

A) atrial fibrillation 
B) atrial flutter 
C) ventricular fibrillation 
D) premature ventricular contraction 
E) None of the choices is correct. 
A) atrial fibrillation 
B) atrial flutter 
C) ventricular fibrillation 
D) premature ventricular contraction 
E) None of the choices is correct.

Question 8

Which of the cardiovascular system's circuits has deoxygenated blood in its arteries?

Accepted Answer

A) Pulmonary circuit 
B) Systemic circuit 
C)  Coronary circuit 
A) Pulmonary circuit 
B) Systemic circuit 
C)  Coronary circuit

Question 9

The relaxation phase of a heart chamber is termed ________________.

Accepted Answer

The answer of The relaxation phase of a heart chamber...

Question 10

The gap junctions of intercalated discs provide a low-resistance pathway across the membranes of adjoining cardiac muscle fibers.

Accepted Answer

A) True 
 B)False

Question 11

The epicardium is another name for the

Accepted Answer

A) visceral layer of the serous pericardium. 
B) parietal layer of the serous pericardium. 
C) pericardium. 
D) myocardium. 
E) myometrium. 
A) visceral layer of the serous pericardium. 
B) parietal layer of the serous pericardium. 
C) pericardium. 
D) myocardium. 
E) myometrium.

Question 12

The left ventricle has a wall that is typically three times thicker than the right ventricular wall.

Accepted Answer

A) True 
 B)False

Question 13

During ventricular contraction the semilunar valves close in order to permit the blood to enter the large arterial trunks that carry blood away from the heart.

Accepted Answer

A) True 
 B)False

Question 14

Which are functions performed by the fibrous skeleton of the heart? 
A: Separates the atria and ventricles
B: Anchors the heart valves
C: Provides electrical insulation between the atria and ventricles
D: Provides the framework for the attachment of the myocardium
E: None of these are true functions of the fibrous skeleton of the heart.

Accepted Answer

A) a,d 
B) b,d 
C) a,c,d 
D) a,b,c,d 
E) e 
A) a,d 
B) b,d 
C) a,c,d 
D) a,b,c,d 
E) e

Question 15

It is the _____________ that permits the compression necessary to pump large volumes of blood out of the ventricles.

Accepted Answer

A) negative pressure inside the ventricles 
B) absence of oxygenated blood in the atria 
C) arrangement of cardiac muscle in the heart wall 
D) presence of skeletal muscle tissue in the heart skeleton 
E) presence of papillary muscles in the ventricles 
A) negative pressure inside the ventricles 
B) absence of oxygenated blood in the atria 
C) arrangement of cardiac muscle in the heart wall 
D) presence of skeletal muscle tissue in the heart skeleton 
E) presence of papillary muscles in the ventricles

Question 16

Sympathetic innervation of the heart 
A: increases the heart rate.
B: decreases the heart rate.
C: increases the force of contractions.
D: decreases the force of contractions.
E: has no effect on contraction force.

Accepted Answer

A) a,c 
B) b,d 
C) a,d 
D) b,e 
E) a,e 
A) a,c 
B) b,d 
C) a,d 
D) b,e 
E) a,e

Question 17

Of the four "normal" heart sounds,the initial "lubb" sound is heard when the

Accepted Answer

A) AV valves close. 
B) semilunar valves close. 
C) AV valves open. 
D) semilunar valves open. 
E) foramen ovale closes. 
A) AV valves close. 
B) semilunar valves close. 
C) AV valves open. 
D) semilunar valves open. 
E) foramen ovale closes.

Question 18

The numerous ________________ within the intercalated discs prevent cardiac muscle fibers from pulling apart.

Accepted Answer

The answer of The numerous ________________ within the intercalated discs...

Question 19

The internal wall surface of each ventricle displays large,smooth,irregular muscular ridges called

Accepted Answer

A) conus arteriosus. 
B) atrioventricular opening. 
C) trabeculae carneae. 
D) chordae tendineae 
E) pectinate muscles 
A) conus arteriosus. 
B) atrioventricular opening. 
C) trabeculae carneae. 
D) chordae tendineae 
E) pectinate muscles

Question 20

The embryonic heart actually begins working before its development is complete.

Accepted Answer

A) True 
 B)False

Exam 22: Heart

One reason that necessitates the relatively early development of the heart is that the embryo has become too large to receive adequate nutrient supply by diffusion alone.

Which analogy fits the human heart?

The _______________ cardiac vein travels alongside the right marginal artery.

The ______________ circuit consists of the chambers on the right side of the heart as well as the pulmonary arteries and veins.

The arteries and veins that leave and enter the heart are called the great vessels because

The beginning of the cardiac cycle is when the

One example of cardiac arrhythmia is _________,in which a rapid,repetitious movement of the ventricular muscle replaces normal contractions.

Which of the cardiovascular system's circuits has deoxygenated blood in its arteries?

The relaxation phase of a heart chamber is termed ________________.

The gap junctions of intercalated discs provide a low-resistance pathway across the membranes of adjoining cardiac muscle fibers.

The epicardium is another name for the

The left ventricle has a wall that is typically three times thicker than the right ventricular wall.

During ventricular contraction the semilunar valves close in order to permit the blood to enter the large arterial trunks that carry blood away from the heart.

It is the _____________ that permits the compression necessary to pump large volumes of blood out of the ventricles.

Sympathetic innervation of the heart A: increases the heart rate. B: decreases the heart rate. C: increases the force of contractions. D: decreases the force of contractions. E: has no effect on contraction force.

Of the four "normal" heart sounds,the initial "lubb" sound is heard when the

The numerous ________________ within the intercalated discs prevent cardiac muscle fibers from pulling apart.

The internal wall surface of each ventricle displays large,smooth,irregular muscular ridges called

The embryonic heart actually begins working before its development is complete.

A First Look at Anatomy

The Celt Basic Unit of Structure and Function

Embryology

Tissue Level of Organization

Integumentary System

Cartilage and Bone

Axial Skeleton

Appendicular Skeleton

Articulations

Muscle Tissue and Organization

Axial Muscles

Appendicular Muscles

Surface Anatomy

Nervous Tissue

Brain and Cranial Nerves

Spinal Cord and Spinal Nerves

Pathways and Integrative Functions

Autonomic Nervous System

Senses: General and Special

Endocrine System

Blood

Vessels and Circulation

Lymphatic System

Respiratory System

Digestive System

Urinary System

Reproductive System

Filters