Question 1

Figure 20-2 Cardiac Cycle
Use Figure 20-2 to answer the following question:
-What occurs at the circled label "7" on the graph?

Accepted Answer

A) isovolumetric ventricular relaxation 
B) sympathetic stimulation 
C) isovolumetric ventricular contraction 
D) ventricular ejection 
E) ventricular filling 
A) isovolumetric ventricular relaxation 
B) sympathetic stimulation 
C) isovolumetric ventricular contraction 
D) ventricular ejection 
E) ventricular filling

Question 2

The inferior point of the heart is called the ________.

Accepted Answer

The answer of The inferior point of the heart is...

Question 3

At a heart rate of 60 beats/minute,a cardiac cycle lasts

Accepted Answer

A) 60 seconds. 
B) 60 milliseconds. 
C) 1 second. 
D) 370 milliseconds. 
E) 630 milliseconds. 
A) 60 seconds. 
B) 60 milliseconds. 
C) 1 second. 
D) 370 milliseconds. 
E) 630 milliseconds.

Question 4

The structure that permits blood flow from the right atrium to the left atrium in the fetal circulation is the

Accepted Answer

A) foramen ovale. 
B) interatrial septum. 
C) coronary sinus. 
D) fossa ovalis. 
E) ligamentum arteriosus. 
A) foramen ovale. 
B) interatrial septum. 
C) coronary sinus. 
D) fossa ovalis. 
E) ligamentum arteriosus.

Question 5

Figure 20-2 Cardiac Cycle
Use Figure 20-2 to answer the following question:
-What occurs at the circled label "4" on the graph?

Accepted Answer

A) ventricular ejection 
B) sympathetic stimulation 
C) isovolumetric ventricular contraction 
D) isovolumetric ventricular relaxation 
E) ventricular filling 
A) ventricular ejection 
B) sympathetic stimulation 
C) isovolumetric ventricular contraction 
D) isovolumetric ventricular relaxation 
E) ventricular filling

Question 6

The ________ separates the two atria.

Accepted Answer

The answer of The ________ separates the two atria....

Question 7

The ________ is a remnant of an important fetal blood vessel that once linked the pulmonary and systemic circuits.

Accepted Answer

ligamentum

Question 8

A patient has an end-diastolic volume of 125 ml. A heart attack has weakened her left ventricle so it can pump a stroke volume of only 40 ml. Calculate her end-systolic volume.

Accepted Answer

A) 85 ml 
B) 3)1 ml 
C) 5000 ml 
D) 165 ml 
E) not enough data given to calculate the end-systolic volume 
A) 85 ml 
B) 3)1 ml 
C) 5000 ml 
D) 165 ml 
E) not enough data given to calculate the end-systolic volume

Question 9

With each ventricular systole,

Accepted Answer

A) blood pressure remains steady. 
B) the ventricles fill with blood. 
C) blood pressure decreases. 
D) cardiac output decreases. 
E) blood pressure increases. 
A) blood pressure remains steady. 
B) the ventricles fill with blood. 
C) blood pressure decreases. 
D) cardiac output decreases. 
E) blood pressure increases.

Question 10

Figure 20-2 Cardiac Cycle
Use Figure 20-2 to answer the following question:
-What volume is labeled "G" on the graph?

Accepted Answer

A) cardiac output 
B) stroke volume 
C) end-systolic volume 
D) end-diastolic volume 
E) ejection fraction 
A) cardiac output 
B) stroke volume 
C) end-systolic volume 
D) end-diastolic volume 
E) ejection fraction

Question 11

In the middle of the thoracic cavity is a region occupied by the heart,great vessels,thymus,esophagus,and trachea called the

Accepted Answer

A) pleural space. 
B) pericardial space. 
C) mediastinum. 
D) cardiac notch. 
E) ventral cavity. 
A) pleural space. 
B) pericardial space. 
C) mediastinum. 
D) cardiac notch. 
E) ventral cavity.

Question 12

The pulmonary arteries carry blood to the

Accepted Answer

A) heart. 
B) lungs. 
C) brain. 
D) intestines. 
E) liver. 
A) heart. 
B) lungs. 
C) brain. 
D) intestines. 
E) liver.

Question 13

Depolarization of the ventricles is represented on an electrocardiogram by the

Accepted Answer

A) P wave. 
B) T wave. 
C) S wave. 
D) QRS complex. 
E) PR complex. 
A) P wave. 
B) T wave. 
C) S wave. 
D) QRS complex. 
E) PR complex.

Question 14

The heart lies within the ________ cavity.

Accepted Answer

The answer of The heart lies within the ________ cavity....

Question 15

The coronary sulcus is a groove that

Accepted Answer

A) marks the border between the atria and ventricles. 
B) marks the boundary line between the right and left ventricles. 
C) marks the boundary line between the right and left atria. 
D) separates the atrioventricular valves from the atria. 
E) separates the coronary arteries from the coronary veins. 
A) marks the border between the atria and ventricles. 
B) marks the boundary line between the right and left ventricles. 
C) marks the boundary line between the right and left atria. 
D) separates the atrioventricular valves from the atria. 
E) separates the coronary arteries from the coronary veins.

Question 16

The right pulmonary veins carry ________ blood to the ________ .

Accepted Answer

A) deoxygenated; left atrium 
B) oxygenated; right lung 
C) deoxygenated; superior vena cava 
D) deoxygenated; right atrium 
E) oxygenated; left atrium 
A) deoxygenated; left atrium 
B) oxygenated; right lung 
C) deoxygenated; superior vena cava 
D) deoxygenated; right atrium 
E) oxygenated; left atrium

Question 17

The adult heart is roughly the size of

Accepted Answer

A) the liver. 
B) a man's clenched fist. 
C) the gallbladder. 
D) the hand of a 10-year-old. 
E) the brain. 
A) the liver. 
B) a man's clenched fist. 
C) the gallbladder. 
D) the hand of a 10-year-old. 
E) the brain.

Question 18

If a patient's resting cardiac output is 5.6 l/min and on a stress test she elevated her heart rate to a maximum of 176 beats/min with a stroke volume of 115 ml/beat,what is her cardiac reserve? Show your work.

Accepted Answer

Cardiac reserve equals maximum

Question 19

Each of the following factors will increase cardiac output,except

Accepted Answer

A) increased venous return. 
B) increased parasympathetic stimulation. 
C) increased sympathetic stimulation. 
D) increased heart rate. 
E) increased force of contraction. 
A) increased venous return. 
B) increased parasympathetic stimulation. 
C) increased sympathetic stimulation. 
D) increased heart rate. 
E) increased force of contraction.

Question 20

The ________ lines the chambers of the heart,covers the heart valves,and is continuous with the endothelium.

Accepted Answer

The answer of The ________ lines the chambers of the...

Exam 20: The Heart

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following question: -What occurs at the circled label "7" on the graph?

The inferior point of the heart is called the ________.

At a heart rate of 60 beats/minute,a cardiac cycle lasts

The structure that permits blood flow from the right atrium to the left atrium in the fetal circulation is the

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following question: -What occurs at the circled label "4" on the graph?

The ________ separates the two atria.

The ________ is a remnant of an important fetal blood vessel that once linked the pulmonary and systemic circuits.

A patient has an end-diastolic volume of 125 ml. A heart attack has weakened her left ventricle so it can pump a stroke volume of only 40 ml. Calculate her end-systolic volume.

With each ventricular systole,

Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following question: -What volume is labeled "G" on the graph?

In the middle of the thoracic cavity is a region occupied by the heart,great vessels,thymus,esophagus,and trachea called the

The pulmonary arteries carry blood to the

Depolarization of the ventricles is represented on an electrocardiogram by the

The heart lies within the ________ cavity.

The coronary sulcus is a groove that

The right pulmonary veins carry ________ blood to the ________ .

The adult heart is roughly the size of

If a patient's resting cardiac output is 5.6 l/min and on a stress test she elevated her heart rate to a maximum of 176 beats/min with a stroke volume of 115 ml/beat,what is her cardiac reserve? Show your work.

Each of the following factors will increase cardiac output,except

The ________ lines the chambers of the heart,covers the heart valves,and is continuous with the endothelium.

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Osseous Tissue and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Articulations

Muscle Tissue

The Muscular System

Neural Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Neural Integration I: Sensory Pathways and the Somatic Nervous System

Neural Integration Ii: the Autonomic Nervous System and

The Special Senses

The Endocrine System

Blood

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Energetics

The Urinary System

Fluid, electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters

The right pulmonary veins carry blood to the .