Question 1

Depolarization of the atria is an electrical event that produces what pattern in an ECG tracing?

Accepted Answer

A)  P wave 
B)  PR interval 
C)  QRS complex 
D)  T wave 
E)  PQ interval 
A)  P wave 
B)  PR interval 
C)  QRS complex 
D)  T wave 
E)  PQ interval

Question 2

The outer layer of the heart wall is called the _________.

Accepted Answer

A)  epicardium 
B)  myocardium 
C)  parietal pericardium 
D)  endocardium 
A)  epicardium 
B)  myocardium 
C)  parietal pericardium 
D)  endocardium

Question 3

The endocardial layer of the heart wall is the innermost layer and is in direct contact with the blood.

Accepted Answer

A) True 
 B)False

Question 4

What part of the ECG pattern is due to depolarization of the ventricles?

Accepted Answer

A)  P wave 
B)  PR interval 
C)  QRS complex 
D)  T wave 
E)  PQ interval 
A)  P wave 
B)  PR interval 
C)  QRS complex 
D)  T wave 
E)  PQ interval

Question 5

When the blood pressure increases,veins function as blood reservoirs and respond by constricting their walls.

Accepted Answer

A) True 
 B)False

Question 6

When the left ventricle contracts,blood passes into the ________.

Accepted Answer

The answer of When the left ventricle contracts,blood passes into...

Question 7

Capillary walls are only one cell layer thick.

Accepted Answer

A) True 
 B)False

Question 8

The ________ vein is the longest vein in the body.

Accepted Answer

The answer of The ________ vein is the longest vein...

Question 9

Which of the following helps return blood to the heart?

Accepted Answer

A)  positive intrathoracic pressure 
B)  valves in the arteries 
C)  contracting skeletal muscles 
D)  capillary action 
E)  ventricular contraction 
A)  positive intrathoracic pressure 
B)  valves in the arteries 
C)  contracting skeletal muscles 
D)  capillary action 
E)  ventricular contraction

Question 10

Which of the following is NOT a risk factor for atherosclerosis?

Accepted Answer

A)  diet high in unsaturated fats 
B)  high blood pressure 
C)  lack of physical exercise 
D)  obesity 
E)  tobacco smoking 
A)  diet high in unsaturated fats 
B)  high blood pressure 
C)  lack of physical exercise 
D)  obesity 
E)  tobacco smoking

Question 11

Arteries carry blood away from the heart.

Accepted Answer

A) True 
 B)False

Question 12

Impulses carried to the heart by means of fibers that secrete acetylcholine are

Accepted Answer

A)  parasympathetic impulses and cause the heart rate to increase. 
B)  parasympathetic impulses and cause the heart rate to decrease. 
C)  sympathetic impulses and cause the heart rate to increase. 
D)  sympathetic impulses and cause the heart rate to decrease. 
E)  somatic impulses and cause the heart rate to decrease. 
A)  parasympathetic impulses and cause the heart rate to increase. 
B)  parasympathetic impulses and cause the heart rate to decrease. 
C)  sympathetic impulses and cause the heart rate to increase. 
D)  sympathetic impulses and cause the heart rate to decrease. 
E)  somatic impulses and cause the heart rate to decrease.

Question 13

The ________ circuit sends oxygen-rich blood from the heart to all cells of the body,removes carbon dioxide and other wastes,and returns blood to the heart.

Accepted Answer

A)  cardiovascular 
B)  visceral 
C)  pulmonary 
D)  systemic 
A)  cardiovascular 
B)  visceral 
C)  pulmonary 
D)  systemic

Question 14

What valve separates the left atrium from the left ventricle?

Accepted Answer

A)  mitral 
B)  tricuspid 
C)  pulmonary 
D)  aortic 
A)  mitral 
B)  tricuspid 
C)  pulmonary 
D)  aortic

Question 15

The difference between systolic and diastolic blood pressure can be palpated and is known as ___________.

Accepted Answer

A)  pulse 
B)  hypertension 
C)  cardiac output 
D)  mean arterial pressure 
A)  pulse 
B)  hypertension 
C)  cardiac output 
D)  mean arterial pressure

Question 16

In humans,circulation of the blood is a closed system.

Accepted Answer

A) True 
 B)False

Question 17

In an ECG pattern,the T wave is caused by

Accepted Answer

A)  repolarization of atrial muscle fibers. 
B)  repolarization of ventricular muscle fibers. 
C)  depolarization of atrial muscle fibers. 
D)  depolarization of ventricular muscle fibers. 
E)  none of the above. 
A)  repolarization of atrial muscle fibers. 
B)  repolarization of ventricular muscle fibers. 
C)  depolarization of atrial muscle fibers. 
D)  depolarization of ventricular muscle fibers. 
E)  none of the above.

Question 18

Blood that is pumped from the right ventricle passes through the aortic valve.

Accepted Answer

A) True 
 B)False

Question 19

The blood pressure in the systemic arteries is greatest during

Accepted Answer

A)  atrial systole. 
B)  ventricular systole. 
C)  ventricular diastole. 
D)  arterial diastole. 
E)  atrial diastole. 
A)  atrial systole. 
B)  ventricular systole. 
C)  ventricular diastole. 
D)  arterial diastole. 
E)  atrial diastole.

Question 20

The T wave of an ECG pattern represents the repolarization of the ________.

Accepted Answer

The answer of The T wave of an ECG pattern...

Depolarization of the atria is an electrical event that produces what pattern in an ECG tracing?

The outer layer of the heart wall is called the _________.

The endocardial layer of the heart wall is the innermost layer and is in direct contact with the blood.

What part of the ECG pattern is due to depolarization of the ventricles?

When the blood pressure increases,veins function as blood reservoirs and respond by constricting their walls.

When the left ventricle contracts,blood passes into the ________.

Capillary walls are only one cell layer thick.

The ________ vein is the longest vein in the body.

Which of the following helps return blood to the heart?

Which of the following is NOT a risk factor for atherosclerosis?

Arteries carry blood away from the heart.

Impulses carried to the heart by means of fibers that secrete acetylcholine are

The ________ circuit sends oxygen-rich blood from the heart to all cells of the body,removes carbon dioxide and other wastes,and returns blood to the heart.

What valve separates the left atrium from the left ventricle?

The difference between systolic and diastolic blood pressure can be palpated and is known as ___________.

In humans,circulation of the blood is a closed system.

In an ECG pattern,the T wave is caused by

Blood that is pumped from the right ventricle passes through the aortic valve.

The blood pressure in the systemic arteries is greatest during

The T wave of an ECG pattern represents the repolarization of the ________.

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Muscular System

Nervous System

The Senses

Endocrine System

Blood

Lymphatic System and Immunity

Digestive System and Nutrition

Respiratory System

Urinary System

Water, electrolyte, and Acid-Base Balance

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Exam 13: Cardiovascular System

Depolarization of the atria is an electrical event that produces what pattern in an ECG tracing?

The outer layer of the heart wall is called the _________.

The endocardial layer of the heart wall is the innermost layer and is in direct contact with the blood.

What part of the ECG pattern is due to depolarization of the ventricles?

When the blood pressure increases,veins function as blood reservoirs and respond by constricting their walls.

When the left ventricle contracts,blood passes into the ________.

Capillary walls are only one cell layer thick.

The ________ vein is the longest vein in the body.

Which of the following helps return blood to the heart?

Which of the following is NOT a risk factor for atherosclerosis?

Arteries carry blood away from the heart.

Impulses carried to the heart by means of fibers that secrete acetylcholine are

The ________ circuit sends oxygen-rich blood from the heart to all cells of the body,removes carbon dioxide and other wastes,and returns blood to the heart.

What valve separates the left atrium from the left ventricle?

The difference between systolic and diastolic blood pressure can be palpated and is known as ___________.

In humans,circulation of the blood is a closed system.

In an ECG pattern,the T wave is caused by

Blood that is pumped from the right ventricle passes through the aortic valve.

The blood pressure in the systemic arteries is greatest during

The T wave of an ECG pattern represents the repolarization of the ________.

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Muscular System

Nervous System

The Senses

Endocrine System

Blood

Lymphatic System and Immunity

Digestive System and Nutrition

Respiratory System

Urinary System

Water, electrolyte, and Acid-Base Balance

Reproductive Systems

Pregnancy, growth, development, and Genetics

Filters