Question 1

Match the condition with the description.
-coronary thrombosis

Accepted Answer

A) allows blood to flow from the aorta to the pulmonary trunk 
B) a blood clot in a coronary vessel 
C) indicates low oxygen levels in peripheral blood vessels 
D) no rhythmic contractions of the myocardium 
E) heart rate less than 60 beats/minute 
A) allows blood to flow from the aorta to the pulmonary trunk 
B) a blood clot in a coronary vessel 
C) indicates low oxygen levels in peripheral blood vessels 
D) no rhythmic contractions of the myocardium 
E) heart rate less than 60 beats/minute

Question 2

Match the condition with the description.
-cyanosis

Accepted Answer

A) allows blood to flow from the aorta to the pulmonary trunk 
B) a blood clot in a coronary vessel 
C) indicates low oxygen levels in peripheral blood vessels 
D) no rhythmic contractions of the myocardium 
E) heart rate less than 60 beats/minute 
A) allows blood to flow from the aorta to the pulmonary trunk 
B) a blood clot in a coronary vessel 
C) indicates low oxygen levels in peripheral blood vessels 
D) no rhythmic contractions of the myocardium 
E) heart rate less than 60 beats/minute

Question 3

Use the following two choices:
-$\uparrow$ blood pressure

Accepted Answer

A) ↑ heart rate 
B) ↓ heart rate 
A) ↑ heart rate 
B) ↓ heart rate

Question 4

A serious condition in which a large amount of fluid accumulates in the pericardial cavity and puts pressure of the heart is

Accepted Answer

A)  endocarditis. 
B)  pericarditis. 
C)  a myocardial infarction. 
D)  cardiac tamponade. 
A)  endocarditis. 
B)  pericarditis. 
C)  a myocardial infarction. 
D)  cardiac tamponade.

Question 5

Which of the following would result from a reduced function of the sodium channels in the SA node?

Accepted Answer

A)  depolarization would be delayed 
B)  the heart rate would decrease 
C)  repolarization would not occur 
D)  a shortened plateau phase 
E)  depolarization would be delayed and the heart rate would decrease 
A)  depolarization would be delayed 
B)  the heart rate would decrease 
C)  repolarization would not occur 
D)  a shortened plateau phase 
E)  depolarization would be delayed and the heart rate would decrease

Question 6

Use the following key to mark the most correct answer.
-(1) end-diastolic volume at rest;
(2) end-diastolic volume during exercise
B

Accepted Answer

A) Choose A if the first item is greater than the second item. 
B) Choose B if the first item is less than the second item. 
C) Choose C if the first item is equal or nearly equal to the second item. 
A) Choose A if the first item is greater than the second item. 
B) Choose B if the first item is less than the second item. 
C) Choose C if the first item is equal or nearly equal to the second item.

Question 7

Blood flow through the coronary blood vessels decreases during myocardial contraction and increases during myocardial relaxation.

Accepted Answer

A) True 
 B)False

Question 8

Regurgitation of blood flow through the aortic semilunar valve would give rise to

Accepted Answer

A)  the first heart sound. 
B)  the second heart sound. 
C)  a heart murmur. 
D)  an extra heart beat. 
E)  end-systolic volume. 
A)  the first heart sound. 
B)  the second heart sound. 
C)  a heart murmur. 
D)  an extra heart beat. 
E)  end-systolic volume.

Question 9

-Blood exiting the pulmonary semilunar valve is leaving this chamber of the heart.

Accepted Answer

The answer of  
-Blood exiting the pulmonary semilunar valve...

Question 10

A direct connection between arteries is called a/an

Accepted Answer

A)  auricle. 
B)  sulcus. 
C)  sinus. 
D)  anastamosis. 
A)  auricle. 
B)  sulcus. 
C)  sinus. 
D)  anastamosis.

Question 11

Match the drug with its effects.
-antihypertensive agent

Accepted Answer

A) binds to epinephrine receptors 
B) prevents clot formation 
C) can reduce calcium diffusion rate into myocardial cells 
D) frequently given to people with restricted coronary blood flow in order to reduce preload 
E) used to treat high blood pressure 
A) binds to epinephrine receptors 
B) prevents clot formation 
C) can reduce calcium diffusion rate into myocardial cells 
D) frequently given to people with restricted coronary blood flow in order to reduce preload 
E) used to treat high blood pressure

Question 12

-Identify structure "D" on the heart diagram.

Accepted Answer

A)  left atrium 
B)  aortic semilunar valve 
C)  bicuspid (mitral) valve 
D)  right atrium 
E)  pulmonary semilunar valve 
A)  left atrium 
B)  aortic semilunar valve 
C)  bicuspid (mitral) valve 
D)  right atrium 
E)  pulmonary semilunar valve

Question 13

-This chamber pumps blood to the systemic circuit.

Accepted Answer

The answer of  
-This chamber pumps blood to the...

Question 14

Cardiac output is equal to heart rate times ____ _______.

Accepted Answer

The answer of Cardiac output is equal to heart rate...

Question 15

Of the types of damage resulting from a myocardial infarction, which is most likely to cause the greatest increase in the Q-T interval?

Accepted Answer

A)  infarction in the AV node 
B)  left bundle branch block 
C)  infarction affecting the SA node 
D)  tachycardia 
E)  ectopic focus 
A)  infarction in the AV node 
B)  left bundle branch block 
C)  infarction affecting the SA node 
D)  tachycardia 
E)  ectopic focus

Question 16

Which of the following pairs is mismatched?

Accepted Answer

A)  endocardium - covers the inner surfaces of the heart 
B)  myocardium - cardiac muscle 
C)  trabeculae carneae - interior walls of ventricles 
D)  pectinate muscles - muscles that close valves 
E)  chordae tendineae - connective tissue strings that connect to cusps of valves 
A)  endocardium - covers the inner surfaces of the heart 
B)  myocardium - cardiac muscle 
C)  trabeculae carneae - interior walls of ventricles 
D)  pectinate muscles - muscles that close valves 
E)  chordae tendineae - connective tissue strings that connect to cusps of valves

Question 17

The delivery of oxygen and nutrients to the tissues of the body is accomplished through ________ circulation.

Accepted Answer

A)  hepatic 
B)  pulmonary 
C)  peripheral 
D)  systemic 
A)  hepatic 
B)  pulmonary 
C)  peripheral 
D)  systemic

Question 18

Match the drug with its effects.
-anticoagulant

Accepted Answer

A) binds to epinephrine receptors 
B) prevents clot formation 
C) can reduce calcium diffusion rate into myocardial cells 
D) frequently given to people with restricted coronary blood flow in order to reduce preload 
E) used to treat high blood pressure 
A) binds to epinephrine receptors 
B) prevents clot formation 
C) can reduce calcium diffusion rate into myocardial cells 
D) frequently given to people with restricted coronary blood flow in order to reduce preload 
E) used to treat high blood pressure

Question 19

Use the following key to mark the most correct answer.
-(1) length of the refractory period in skeletal muscle cells;
(2) length of the refractory period in cardiac muscle cells
B

Accepted Answer

A) Choose A if the first item is greater than the second item. 
B) Choose B if the first item is less than the second item. 
C) Choose C if the first item is equal or nearly equal to the second item. 
A) Choose A if the first item is greater than the second item. 
B) Choose B if the first item is less than the second item. 
C) Choose C if the first item is equal or nearly equal to the second item.

Question 20

-The figure illustrates the cardiac action potential. What does "A" represent?

Accepted Answer

A)  early repolarization phase 
B)  plateau phase 
C)  final repolarization phase 
D)  depolarization phase 
A)  early repolarization phase 
B)  plateau phase 
C)  final repolarization phase 
D)  depolarization phase

Exam 20: Cardiovascular System: the Heart

Match the condition with the description. -coronary thrombosis

Match the condition with the description. -cyanosis

Use the following two choices: - ↑\uparrow↑ blood pressure

A serious condition in which a large amount of fluid accumulates in the pericardial cavity and puts pressure of the heart is

Which of the following would result from a reduced function of the sodium channels in the SA node?

Use the following key to mark the most correct answer. -(1) end-diastolic volume at rest; (2) end-diastolic volume during exercise B

Blood flow through the coronary blood vessels decreases during myocardial contraction and increases during myocardial relaxation.

Regurgitation of blood flow through the aortic semilunar valve would give rise to

-Blood exiting the pulmonary semilunar valve is leaving this chamber of the heart.

A direct connection between arteries is called a/an

Match the drug with its effects. -antihypertensive agent

-Identify structure "D" on the heart diagram.

-This chamber pumps blood to the systemic circuit.

Cardiac output is equal to heart rate times ____ _______.

Of the types of damage resulting from a myocardial infarction, which is most likely to cause the greatest increase in the Q-T interval?

Which of the following pairs is mismatched?

The delivery of oxygen and nutrients to the tissues of the body is accomplished through ________ circulation.

Match the drug with its effects. -anticoagulant

Use the following key to mark the most correct answer. -(1) length of the refractory period in skeletal muscle cells; (2) length of the refractory period in cardiac muscle cells B

-The figure illustrates the cardiac action potential. What does "A" represent?

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolytes, and Acidbase Balance

Reproductive System

Development, Growth, Aging, and Genetics

Filters

Use the following two choices: - $\uparrow$ blood pressure

Cardiac output is equal to heart rate times ___.