Question 1

The heart valves

Accepted Answer

A) stabilize and hold the arteries leaving the heart. 
B) permit the passage of blood in one direction. 
C) separate the right and left sides of the heart. 
D) are only used in the fetal heart. 
E) direct the conduction impulse through the heart muscle. 
A) stabilize and hold the arteries leaving the heart. 
B) permit the passage of blood in one direction. 
C) separate the right and left sides of the heart. 
D) are only used in the fetal heart. 
E) direct the conduction impulse through the heart muscle.

Question 2

Normal passage of blood from the atria to the ventricles only happens if the atrioventricular valves are open.

Accepted Answer

A) True 
 B)False

Question 3

Though the autonomic innervation by autonomic centers in the brainstem cannot initiate a heartbeat,it can increase or decrease the heart rate.

Accepted Answer

A) True 
 B)False

Question 4

During isovolumetric relaxation,the semilunar valves ________________.

Accepted Answer

The answer of During isovolumetric relaxation,the semilunar valves ________________....

Question 5

Which can be used to characterize blood flow in the human body?
A: There is a unidirectional blood flow.
B: Arteries always carry oxygenated blood.
C: Veins always carry deoxygenated blood.
D: Arteries carry blood away from the heart.
E: Veins carry blood toward the heart.

Accepted Answer

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

Question 6

The foramen ovale is actually an opening in the

Accepted Answer

A) interventricular septum. 
B) interatrial septum. 
C) fossa ovalis. 
D) aorticopulmonary septum. 
E) tetralogy of Fallot. 
A) interventricular septum. 
B) interatrial septum. 
C) fossa ovalis. 
D) aorticopulmonary septum. 
E) tetralogy of Fallot.

Question 7

Which may predispose one to inadequate coronary blood flow?

Accepted Answer

A) Bradycardia 
B) Hypertension 
C) Angina pectoris 
D) Tachycardia 
E) None of these answers is correct. 
A) Bradycardia 
B) Hypertension 
C) Angina pectoris 
D) Tachycardia 
E) None of these answers is correct.

Question 8

In an EKG,the T wave denotes

Accepted Answer

A) depolarization of the atria. 
B) depolarization of the right ventricle. 
C) repolarization of the ventricles. 
D) closure of the AV valves. 
E) depolarization of the left ventricle. 
A) depolarization of the atria. 
B) depolarization of the right ventricle. 
C) repolarization of the ventricles. 
D) closure of the AV valves. 
E) depolarization of the left ventricle.

Question 9

Which structure marks the end of the left ventricle and the entrance to the aorta?

Accepted Answer

A) Pulmonary semilunar valve 
B) Left atrioventricular valve 
C) Right atrioventricular valve 
D) Aortic semilunar valve 
E) Foramen ovale 
A) Pulmonary semilunar valve 
B) Left atrioventricular valve 
C) Right atrioventricular valve 
D) Aortic semilunar valve 
E) Foramen ovale

Question 10

Which circuit of the cardiovascular system is responsible for sending blood to the kidneys,stomach,and pelvic regions?

Accepted Answer

A) Pulmonary circuit 
B) Systemic circuit 
C)  Coronoary circuit 
A) Pulmonary circuit 
B) Systemic circuit 
C)  Coronoary circuit

Question 11

The chordae tendineae are made out of

Accepted Answer

A) collagen fibers. 
B) elastin fibers. 
C) hyaline cartilage. 
D) reticulin fibers. 
E) trabeculae carneae. 
A) collagen fibers. 
B) elastin fibers. 
C) hyaline cartilage. 
D) reticulin fibers. 
E) trabeculae carneae.

Question 12

Cardiac muscle fibers

Accepted Answer

A) contract as a single unit. 
B) are only loosely connected by the intercalated discs. 
C) have a low oxygen need. 
D) utilize hemoglobin as an energy source. 
A) contract as a single unit. 
B) are only loosely connected by the intercalated discs. 
C) have a low oxygen need. 
D) utilize hemoglobin as an energy source.

Question 13

The inferior chambers of the heart are the

Accepted Answer

A) atria. 
B) auricles. 
C) ventricles. 
D) sulci. 
E) gyri. 
A) atria. 
B) auricles. 
C) ventricles. 
D) sulci. 
E) gyri.

Question 14

Development of the heart commences in the _______ week.

Accepted Answer

A) first 
B) third 
C) fifth 
D) eighth 
E) tenth 
A) first 
B) third 
C) fifth 
D) eighth 
E) tenth

Question 15

The relatively small size of the Purkinje fibers allows for the extremely rapid impulse conduction through the ventricles.

Accepted Answer

A) True 
 B)False

Question 16

The papillary muscles attach to the cusps of the atrioventricular valves by means of the

Accepted Answer

A) pectinate muscles. 
B) trabeculae carneae. 
C) conus arteriosus. 
D) chordae tendineae. 
E) tricuspid valve. 
A) pectinate muscles. 
B) trabeculae carneae. 
C) conus arteriosus. 
D) chordae tendineae. 
E) tricuspid valve.

Question 17

The great cardiac vein runs alongside the

Accepted Answer

A) anterior interventricular artery. 
B) posterior interventricular artery. 
C) right marginal artery. 
D) circumflex artery. 
E) coronary sinus. 
A) anterior interventricular artery. 
B) posterior interventricular artery. 
C) right marginal artery. 
D) circumflex artery. 
E) coronary sinus.

Question 18

Which heart chambers pump deoxygenated blood?

Accepted Answer

A) Left atrium and right atrium 
B) Left ventricle and right ventricle 
C) Right atrium and right ventricle 
D) Left atrium and left ventricle 
E) Right atrium and left ventricle 
A) Left atrium and right atrium 
B) Left ventricle and right ventricle 
C) Right atrium and right ventricle 
D) Left atrium and left ventricle 
E) Right atrium and left ventricle

Question 19

The heartbeat is initiated by the cardiac muscle fibers of the _______________ node.

Accepted Answer

The answer of The heartbeat is initiated by the cardiac...

Question 20

Which correctly describes the heart's apex?

Accepted Answer

A) Projects slightly anteroinferiorly toward the left side of the body 
B) Projects slightly anteroinferiorly toward the right side of the body 
C) Projects slightly posteroinferiorly toward the left side of the body 
D) Projects slightly posteroinferiorly toward the right side of the body 
E) Projects slightly posteroinferiorly toward the midline of the body 
A) Projects slightly anteroinferiorly toward the left side of the body 
B) Projects slightly anteroinferiorly toward the right side of the body 
C) Projects slightly posteroinferiorly toward the left side of the body 
D) Projects slightly posteroinferiorly toward the right side of the body 
E) Projects slightly posteroinferiorly toward the midline of the body

Exam 22: Heart

The heart valves

Normal passage of blood from the atria to the ventricles only happens if the atrioventricular valves are open.

Though the autonomic innervation by autonomic centers in the brainstem cannot initiate a heartbeat,it can increase or decrease the heart rate.

During isovolumetric relaxation,the semilunar valves ________________.

Which can be used to characterize blood flow in the human body? A: There is a unidirectional blood flow. B: Arteries always carry oxygenated blood. C: Veins always carry deoxygenated blood. D: Arteries carry blood away from the heart. E: Veins carry blood toward the heart.

The foramen ovale is actually an opening in the

Which may predispose one to inadequate coronary blood flow?

In an EKG,the T wave denotes

Which structure marks the end of the left ventricle and the entrance to the aorta?

Which circuit of the cardiovascular system is responsible for sending blood to the kidneys,stomach,and pelvic regions?

The chordae tendineae are made out of

Cardiac muscle fibers

The inferior chambers of the heart are the

Development of the heart commences in the _______ week.

The relatively small size of the Purkinje fibers allows for the extremely rapid impulse conduction through the ventricles.

The papillary muscles attach to the cusps of the atrioventricular valves by means of the

The great cardiac vein runs alongside the

Which heart chambers pump deoxygenated blood?

The heartbeat is initiated by the cardiac muscle fibers of the _______________ node.

Which correctly describes the heart's apex?

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