Question 1

The cardiac accelerator center uses these nerves:

Accepted Answer

A) vagus 
B) sympathetic 
C) parasympathetic 
D) all of these,depending on the situation 
A) vagus 
B) sympathetic 
C) parasympathetic 
D) all of these,depending on the situation B

Question 2

The ejection fraction of the heart is the:

Accepted Answer

A) percent of the body's total blood a ventricle pumps per beat 
B) percent of the body's total blood a ventricle pumps per minute 
C) percent of the blood within a ventricle that is pumped during systole 
D) percent of the blood within a ventricle that is pumped during diastole 
A) percent of the body's total blood a ventricle pumps per beat 
B) percent of the body's total blood a ventricle pumps per minute 
C) percent of the blood within a ventricle that is pumped during systole 
D) percent of the blood within a ventricle that is pumped during diastole C

Question 3

Which statement is NOT true of the location of the heart?

Accepted Answer

A) The heart is within the mediastinum. 
B) The heart is medial to the lungs. 
C) The heart is inferior to the diaphragm. 
D) The heart is encircled and protected by the rib cage. 
A) The heart is within the mediastinum. 
B) The heart is medial to the lungs. 
C) The heart is inferior to the diaphragm. 
D) The heart is encircled and protected by the rib cage. C

Question 4

Which statement is NOT true of the ventricles of the heart?

Accepted Answer

A) The septum between them is made of myocardium. 
B) They are the lower chambers. 
C) The right ventricle pumps blood to the lungs. 
D) The left ventricle has thin walls because the blood it pumps is only going to the body. 
A) The septum between them is made of myocardium. 
B) They are the lower chambers. 
C) The right ventricle pumps blood to the lungs. 
D) The left ventricle has thin walls because the blood it pumps is only going to the body.

Question 5

Which statement is NOT true of the sensory and motor nerves from and to the heart?

Accepted Answer

A) Parasympathetic nerves innervate the SA node and AV node. 
B) The sensation of pain in the heart is caused by lack of oxygen. 
C) Sympathetic nerves are accelerator nerves. 
D) The vagus nerves are sympathetic nerves. 
A) Parasympathetic nerves innervate the SA node and AV node. 
B) The sensation of pain in the heart is caused by lack of oxygen. 
C) Sympathetic nerves are accelerator nerves. 
D) The vagus nerves are sympathetic nerves.

Question 6

Which statement is NOT true of the atria of the heart?

Accepted Answer

A) They are the upper chambers and have thin walls. 
B) They produce the hormone ANP when blood pressure rises. 
C) The right atrium receives blood from the lower body. 
D) The left atrium receives blood from the upper body. 
A) They are the upper chambers and have thin walls. 
B) They produce the hormone ANP when blood pressure rises. 
C) The right atrium receives blood from the lower body. 
D) The left atrium receives blood from the upper body.

Question 7

An athlete has a resting cardiac output of 4750 mL.What are the pulse and stroke volume?

Accepted Answer

A) 46 bpm and 98 mL 
B) 52 bpm and 100 mL 
C) 48 bpm and 105 mL 
D) 50 bpm and 95 mL 
A) 46 bpm and 98 mL 
B) 52 bpm and 100 mL 
C) 48 bpm and 105 mL 
D) 50 bpm and 95 mL

Question 8

The vein that returns blood from the upper body to the right atrium is the:

Accepted Answer

A) superior vena cava 
B) inferior vena cava 
C) aortic vein 
D) pulmonary vein 
A) superior vena cava 
B) inferior vena cava 
C) aortic vein 
D) pulmonary vein

Question 9

Pressoreceptors that detect changes in blood pressure are located in the:

Accepted Answer

A) frontal and carotid sinuses 
B) carotid and aortic sinuses 
C) aortic and ventricular sinuses 
D) ventricular and frontal sinuses 
A) frontal and carotid sinuses 
B) carotid and aortic sinuses 
C) aortic and ventricular sinuses 
D) ventricular and frontal sinuses

Question 10

The fibrous pericardium:

Accepted Answer

A) forms a sac around the heart 
B) is attached to the bases of the great vessels 
C) both A and B 
D) both A and B,and is attached to the diaphragm superiorly 
A) forms a sac around the heart 
B) is attached to the bases of the great vessels 
C) both A and B 
D) both A and B,and is attached to the diaphragm superiorly

Question 11

If stroke volume is 75 mL and pulse is 70 bpm,what is cardiac output?

Accepted Answer

A) 5250 mL 
B) 5350 mL 
C) 5450 mL 
D) 5550 mL 
A) 5250 mL 
B) 5350 mL 
C) 5450 mL 
D) 5550 mL

Question 12

The lungs are ___ to the heart,and the diaphragm is ___ to the heart.

Accepted Answer

A) medial/superior 
B) lateral/superior 
C) medial/inferior 
D) lateral/inferior 
A) medial/superior 
B) lateral/superior 
C) medial/inferior 
D) lateral/inferior

Question 13

The coronary arteries are branches of the ___ and supply ___ to the myocardium.

Accepted Answer

A) pulmonary artery/nutrients 
B) aorta/oxygen 
C) superior vena cava/nutrients 
D) inferior vena cava/oxygen 
A) pulmonary artery/nutrients 
B) aorta/oxygen 
C) superior vena cava/nutrients 
D) inferior vena cava/oxygen

Question 14

The term for contraction of chambers of the heart is:

Accepted Answer

A) blood pressure 
B) systole 
C) diastole 
D) hypertension 
A) blood pressure 
B) systole 
C) diastole 
D) hypertension

Question 15

The veins that return blood from the lungs to the left atrium are the:

Accepted Answer

A) aortic veins 
B) caval veins 
C) pulmonary veins 
D) systemic veins 
A) aortic veins 
B) caval veins 
C) pulmonary veins 
D) systemic veins

Question 16

Which of these does NOT happen following a sudden decrease in blood pressure to the brain?

Accepted Answer

A) Carotid pressoreceptors detect the drop in blood pressure. 
B) Sensory impulses travel along the glossopharyngeal nerves to the medulla. 
C) The inhibitory center of the medulla is activated. 
D) Sympathetic impulses increase the heart rate. 
A) Carotid pressoreceptors detect the drop in blood pressure. 
B) Sensory impulses travel along the glossopharyngeal nerves to the medulla. 
C) The inhibitory center of the medulla is activated. 
D) Sympathetic impulses increase the heart rate.

Question 17

The part of the brain that regulates heart rate is the:

Accepted Answer

A) hypothalamus 
B) cerebrum 
C) cerebellum 
D) medulla 
A) hypothalamus 
B) cerebrum 
C) cerebellum 
D) medulla

Question 18

The cardiac reserve is the:

Accepted Answer

A) ability of the heart to speed up when necessary 
B) ability of the heart to pump more forcefully 
C) difference between resting heart rate and maximum exercise heart rate 
D) difference between resting cardiac output and maximum exercise cardiac output 
A) ability of the heart to speed up when necessary 
B) ability of the heart to pump more forcefully 
C) difference between resting heart rate and maximum exercise heart rate 
D) difference between resting cardiac output and maximum exercise cardiac output

Question 19

A marathon runner has a resting cardiac output of 4600 mL and a stroke volume of 115 mL.What is the pulse?

Accepted Answer

A) 36 bpm 
B) 38 bpm 
C) 40 bpm 
D) 42 bpm 
A) 36 bpm 
B) 38 bpm 
C) 40 bpm 
D) 42 bpm

Question 20

The aortic body contains:

Accepted Answer

A) pressoreceptors that detect changes in blood pressure 
B) chemoreceptors that detect changes in blood pressure 
C) pressoreceptors that detect changes in blood oxygen level 
D) chemoreceptors that detect changes in blood oxygen level 
A) pressoreceptors that detect changes in blood pressure 
B) chemoreceptors that detect changes in blood pressure 
C) pressoreceptors that detect changes in blood oxygen level 
D) chemoreceptors that detect changes in blood oxygen level

Exam 13:The Heart-Part C

The cardiac accelerator center uses these nerves:

The ejection fraction of the heart is the:

Which statement is NOT true of the location of the heart?

Which statement is NOT true of the ventricles of the heart?

Which statement is NOT true of the sensory and motor nerves from and to the heart?

Which statement is NOT true of the atria of the heart?

An athlete has a resting cardiac output of 4750 mL.What are the pulse and stroke volume?

The vein that returns blood from the upper body to the right atrium is the:

Pressoreceptors that detect changes in blood pressure are located in the:

The fibrous pericardium:

If stroke volume is 75 mL and pulse is 70 bpm,what is cardiac output?

The lungs are ___ to the heart,and the diaphragm is ___ to the heart.

The coronary arteries are branches of the ___ and supply ___ to the myocardium.

The term for contraction of chambers of the heart is:

The veins that return blood from the lungs to the left atrium are the:

Which of these does NOT happen following a sudden decrease in blood pressure to the brain?

The part of the brain that regulates heart rate is the:

The cardiac reserve is the:

A marathon runner has a resting cardiac output of 4600 mL and a stroke volume of 115 mL.What is the pulse?

The aortic body contains:

Organization and General Plan of the Body-Part A

Organization and General Plan of the Body-Part B

Organization and General Plan of the Body-Part C

Some Basic Chemistry-Part A

Some Basic Chemistry-Part B

Some Basic Chemistry-Part C

Cells-Part A

Cells-Part B

Cells-Part C

Tissues and Membranes-Part A

Tissues and Membranes-Part B

Tissues and Membranes-Part C

The Integumentary System-Part A

The Integumentary System-Part B

The Integumentary System-Part C

The Skeletal System-Part A

The Skeletal System-Part B

The Skeletal System-Part C

The Muscular System-Part A

The Muscular System-Part B

The Muscular System-Part C

The Nervous System-Part A

The Nervous System-Part B

The Nervous System-Part C

The Senses-Part A

The Senses-Part B

The Senses-Part C

The Endocrine System-Part A

The Endocrine System-Part B

The Endocrine System-Part C

Blood-Part A

Blood-Part B

Blood-Part C

The Heart-Part A

The Heart-Part B

The Vascular System-Part A

The Vascular System-Part B

The Vascular System-Part C

The Lymphatic System and Immunity-Part A

The Lymphatic System and Immunity-Part B

The Lymphatic System and Immunity-Part C

The Respiratory System-Part A

The Respiratory System-Part B

The Respiratory System-Part C

The Digestive System-Part A

The Digestive System-Part B

The Digestive System-Part C

Body Temperature and Metabolism-Part A

Body Temperature and Metabolism-Part B

Body Temperature and Metabolism-Part C

The Urinary System-Part A

The Urinary System-Part B

The Urinary System-Part C

Fluid–Electrolyte and Acid–Base Balance-Part A

Fluid–Electrolyte and Acid–Base Balance-Part B

Fluid–Electrolyte and Acid–Base Balance-Part C

The Reproductive Systems-Part A

The Reproductive Systems-Part B

The Reproductive Systems-Part C

The lungs are _ to the heart,and the diaphragm is _ to the heart.

The coronary arteries are branches of the _ and supply _ to the myocardium.