Question 1

Which bears a close structural relationship with the fossa ovalis?

Accepted Answer

A) Papillary muscles 
B) Trabeculae carneae 
C) Conus arteriosus 
D) Chordae tendineae 
E) Foramen ovale 
A) Papillary muscles 
B) Trabeculae carneae 
C) Conus arteriosus 
D) Chordae tendineae 
E) Foramen ovale

Question 2

The left and right coronary arteries travel within the

Accepted Answer

A)  anterior interventricular sulcus. 
B)  posterior interventricular sulcus. 
C)  coronary sulcus. 
D)  interventricular septum. 
E)  interatrial septum. 
A)  anterior interventricular sulcus. 
B)  posterior interventricular sulcus. 
C)  coronary sulcus. 
D)  interventricular septum. 
E)  interatrial septum.

Question 3

No matter the cause,hypertrophy of the heart causes it to work less efficiently.

Accepted Answer

A) True 
 B)False

Question 4

Which action causes the closure of the right atrioventricular valve?

Accepted Answer

A) Contraction of the right atrium 
B) Contraction of the left atrium 
C) Contraction of the right ventricle 
D) Contraction of the left ventricle 
E) None of these answers is correct. 
A) Contraction of the right atrium 
B) Contraction of the left atrium 
C) Contraction of the right ventricle 
D) Contraction of the left ventricle 
E) None of these answers is correct.

Question 5

In an aging heart,increased flexibility of the heart valves may lead to a heart murmur.

Accepted Answer

A) True 
 B)False

Question 6

During ventricular diastole

Accepted Answer

A) only the AV valves open. 
B) only the AV valves close. 
C) only the semilunar valves close. 
D) the semilunar valves close and the AV valves open. 
E) the semilunar valves open and the AV valves close. 
A) only the AV valves open. 
B) only the AV valves close. 
C) only the semilunar valves close. 
D) the semilunar valves close and the AV valves open. 
E) the semilunar valves open and the AV valves close.

Question 7

The inferior chambers of the heart are called ________________.

Accepted Answer

The answer of The inferior chambers of the heart are...

Question 8

The cardiac cycle is

Accepted Answer

A) when the ventricles are contracting. 
B) when the atria are relaxed. 
C) when the atria are contracting. 
D) when the ventricles are relaxed. 
E) all the events involved with a single heart beat. 
A) when the ventricles are contracting. 
B) when the atria are relaxed. 
C) when the atria are contracting. 
D) when the ventricles are relaxed. 
E) all the events involved with a single heart beat.

Question 9

Parasympathetic innervation decreases the heart rate,but generally tends to have no effect on the force of contractions.

Accepted Answer

A) True 
 B)False

Question 10

Pectinate muscles are found on the

Accepted Answer

A) anterior wall of the right atrium. 
B) posterior wall of the right ventricle. 
C) anterior wall of the right ventricle. 
D) anterior wall of the right and left atria. 
E) posterior wall of the right and left ventricles. 
A) anterior wall of the right atrium. 
B) posterior wall of the right ventricle. 
C) anterior wall of the right ventricle. 
D) anterior wall of the right and left atria. 
E) posterior wall of the right and left ventricles.

Question 11

All cardiac veins eventually drain into the coronary sinus for return of the blood from the myocardium to the right atrium.

Accepted Answer

A) True 
 B)False

Question 12

During isovolumetric contraction,the atria are in

Accepted Answer

A) systole. 
B) diastole. 
A) systole. 
B) diastole.

Question 13

Typically,there are __________ papillary muscles that project from the wall of the left ventricle and attach to the chordae tendineae that support the left AV valve.

Accepted Answer

A) three 
B) two 
C) a highly variable number of 
D) six 
E) no 
A) three 
B) two 
C) a highly variable number of 
D) six 
E) no

Question 14

Which prenatal structure forms the ascending aorta and pulmonary trunk?

Accepted Answer

A) Truncus arteriosus 
B) Sinus venosus 
C) Primitive atrium 
D) Primitive ventricle 
E) Conus cordis 
A) Truncus arteriosus 
B) Sinus venosus 
C) Primitive atrium 
D) Primitive ventricle 
E) Conus cordis

Question 15

The cell-to-cell contacts of the cardiac muscle fibers are called

Accepted Answer

A) Z discs. 
B) T-tubules. 
C) intercalated discs. 
D) cardiac discs. 
E) sarcoplasmic reticulum. 
A) Z discs. 
B) T-tubules. 
C) intercalated discs. 
D) cardiac discs. 
E) sarcoplasmic reticulum.

Question 16

What part of the cardiac conduction system is located in the posterior wall of the right atrium,adjacent to the entrance of the superior vena cava?

Accepted Answer

A) AV bundle 
B) Bundle branches 
C) Purkinje fibers 
D) AV node 
E) SA node 
A) AV bundle 
B) Bundle branches 
C) Purkinje fibers 
D) AV node 
E) SA node

Question 17

Which values are reasonable for a healthy,80 kilogram resting adult?

Accepted Answer

A) 5.25 liters of blood pumped per ventricle per minute; 108,000 beats per day 
B) 4.25 liters of blood pumped per ventricle per minute; 60,000 beats per day 
C) 6.75 liters of blood pumped per ventricle per minute; 20,000 beats per day 
D) 7.25 liters of blood pumped per ventricle per minute; 76,000 beats per day 
E) 5.75 liters of blood pumped per ventricle per minute; 144,000 beats per day 
A) 5.25 liters of blood pumped per ventricle per minute; 108,000 beats per day 
B) 4.25 liters of blood pumped per ventricle per minute; 60,000 beats per day 
C) 6.75 liters of blood pumped per ventricle per minute; 20,000 beats per day 
D) 7.25 liters of blood pumped per ventricle per minute; 76,000 beats per day 
E) 5.75 liters of blood pumped per ventricle per minute; 144,000 beats per day

Exam 22: Heart

Which bears a close structural relationship with the fossa ovalis?

The left and right coronary arteries travel within the

No matter the cause,hypertrophy of the heart causes it to work less efficiently.

Which action causes the closure of the right atrioventricular valve?

In an aging heart,increased flexibility of the heart valves may lead to a heart murmur.

During ventricular diastole

The inferior chambers of the heart are called ________________.

The cardiac cycle is

Parasympathetic innervation decreases the heart rate,but generally tends to have no effect on the force of contractions.

Pectinate muscles are found on the

All cardiac veins eventually drain into the coronary sinus for return of the blood from the myocardium to the right atrium.

During isovolumetric contraction,the atria are in

Typically,there are __________ papillary muscles that project from the wall of the left ventricle and attach to the chordae tendineae that support the left AV valve.

Which prenatal structure forms the ascending aorta and pulmonary trunk?

The cell-to-cell contacts of the cardiac muscle fibers are called

What part of the cardiac conduction system is located in the posterior wall of the right atrium,adjacent to the entrance of the superior vena cava?

Which values are reasonable for a healthy,80 kilogram resting adult?

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