Question 1

The longest vein in the body is the

Accepted Answer

A) superior vena cava. 
B) great saphenous vein. 
C) internal iliac vein. 
D) hepatic portal vein. 
A) superior vena cava. 
B) great saphenous vein. 
C) internal iliac vein. 
D) hepatic portal vein.

Question 2

When venous pressure is too low, ________ stimulate smooth muscles in the walls of veins to contract.

Accepted Answer

A) parasympathetic reflexes 
B) sympathetic reflexes 
C) somatic reflexes 
D) carbon dioxide levels 
A) parasympathetic reflexes 
B) sympathetic reflexes 
C) somatic reflexes 
D) carbon dioxide levels

Question 3

The aortic baroreceptor senses stretching of the aorta. How will the nervous system respond?

Accepted Answer

A) Sympathetic signals will be sent to increase heart rate. 
B) Parasympathetic signals will be sent to decrease heart rate. 
C) Parasympathetic signals will be sent to increase heart rate. 
D) Sympathetic signals will be sent to decrease heart rate. 
A) Sympathetic signals will be sent to increase heart rate. 
B) Parasympathetic signals will be sent to decrease heart rate. 
C) Parasympathetic signals will be sent to increase heart rate. 
D) Sympathetic signals will be sent to decrease heart rate.

Question 4

The apical heartbeat is heard by listening between the fifth and sixth ribs about 7.5 cm left of the midline.

Accepted Answer

A) True 
 B)False

Question 5

The structures that contain chemoreceptors that detect blood levels of oxygen and carbon dioxide are the

Accepted Answer

A) aortic bodies. 
B) aortic sinuses. 
C) aortic branches. 
D) capillary buds. 
A) aortic bodies. 
B) aortic sinuses. 
C) aortic branches. 
D) capillary buds.

Question 6

Which of the following waves of an ECG pattern is/are correctly described?

Accepted Answer

A) P wave-depolarization of atria 
B) QRS complex-repolarization of ventricles 
C) T wave-depolarization of ventricles 
D) QRST complex-depolarization of ventricles 
A) P wave-depolarization of atria 
B) QRS complex-repolarization of ventricles 
C) T wave-depolarization of ventricles 
D) QRST complex-depolarization of ventricles

Question 7

Tim runs 5 to 8 miles a day. He has an enlarged heart and low heart rate and blood pressure. He most likely has

Accepted Answer

A) coronary artery disease. 
B) an arrhythmia. 
C) a very healthy cardiovascular system. 
D) atherosclerosis. 
A) coronary artery disease. 
B) an arrhythmia. 
C) a very healthy cardiovascular system. 
D) atherosclerosis.

Question 8

Which of the following is not a normal response to physical exercise?

Accepted Answer

A) Increased heart rate 
B) Increased ventricular contraction 
C) Increased blood flow to the skeletal muscles 
D) Increased blood flow to the abdominal viscera 
A) Increased heart rate 
B) Increased ventricular contraction 
C) Increased blood flow to the skeletal muscles 
D) Increased blood flow to the abdominal viscera

Question 9

Pulse pressure is calculated by

Accepted Answer

A) adding systolic and diastolic pressures. 
B) multiplying systolic and diastolic pressures. 
C) subtracting systolic pressure from diastolic pressure. 
D) subtracting diastolic pressure from systolic pressure. 
A) adding systolic and diastolic pressures. 
B) multiplying systolic and diastolic pressures. 
C) subtracting systolic pressure from diastolic pressure. 
D) subtracting diastolic pressure from systolic pressure.

Question 10

The pulmonary trunk divides into the right and left pulmonary arteries about ________ centimeters above its origin.

Accepted Answer

A) 5 
B) 8 
C) 10 
D) 12 
A) 5 
B) 8 
C) 10 
D) 12

Question 11

Circulation is vital because it

Accepted Answer

A) supplies oxygen and nutrients to and removes wastes from tissues. 
B) inflates the lungs. 
C) delivers carbon dioxide to tissues and removes excess oxygen. 
D) delivers wastes to tissues. 
A) supplies oxygen and nutrients to and removes wastes from tissues. 
B) inflates the lungs. 
C) delivers carbon dioxide to tissues and removes excess oxygen. 
D) delivers wastes to tissues.

Question 12

A nurse wants to measure a patient's blood pressure. She will have to use a(n)

Accepted Answer

A) stethoscope. 
B) sphygmomanometer. 
C) EKG. 
D) hemocytometer. 
A) stethoscope. 
B) sphygmomanometer. 
C) EKG. 
D) hemocytometer.

Question 13

Heart rate in a fetus is about ________, in a newborn about ________, and in an adult about ________.

Accepted Answer

A) 145; 140; 70 
B) 70; 140; 145 
C) 100; 100; 100 
D) 200; 160; 120 
A) 145; 140; 70 
B) 70; 140; 145 
C) 100; 100; 100 
D) 200; 160; 120

Question 14

Some studies theorize that yawning is a reflex triggered by increased blood pH as carbonic acid is produced to expel CO₂ by exhaling. Which structures would be stimulated to induce yawning if this theory is true?

Accepted Answer

A) Arterial baroreceptors 
B) Baroreceptors in the aortic arch 
C) Free nerve endings in the blood vessels 
D) Aortic bodies and carotid bodies 
A) Arterial baroreceptors 
B) Baroreceptors in the aortic arch 
C) Free nerve endings in the blood vessels 
D) Aortic bodies and carotid bodies

Question 15

A person warming up after being cold feels a warm rush as blood flows quickly to the peripheral appendages. Nitric oxide is important in this situation because it

Accepted Answer

A) raises blood pressure. 
B) raises blood temperature. 
C) relaxes the smooth muscle in the blood vessel wall. 
D) enhances gas exchange. 
A) raises blood pressure. 
B) raises blood temperature. 
C) relaxes the smooth muscle in the blood vessel wall. 
D) enhances gas exchange.

Question 16

The right atrium receives blood directly from

Accepted Answer

A) the superior vena cava and inferior vena cava only. 
B) the superior vena cava, inferior vena cava, and coronary sinus. 
C) the superior vena cava, inferior vena cava, and pulmonary veins. 
D) the pulmonary veins. 
A) the superior vena cava and inferior vena cava only. 
B) the superior vena cava, inferior vena cava, and coronary sinus. 
C) the superior vena cava, inferior vena cava, and pulmonary veins. 
D) the pulmonary veins.

Question 17

Which of the following correctly matches the valve to its function?

Accepted Answer

A) Tricuspid valve-permits one-way blood flow from the right to the left atrium 
B) Pulmonary valve-permits one-way blood flow from the left ventricle to the aorta 
C) Mitral valve-permits one-way blood flow from the left atrium to the left ventricle 
D) Aortic valve-permits one-way blood flow from the right ventricle to the pulmonary trunk 
A) Tricuspid valve-permits one-way blood flow from the right to the left atrium 
B) Pulmonary valve-permits one-way blood flow from the left ventricle to the aorta 
C) Mitral valve-permits one-way blood flow from the left atrium to the left ventricle 
D) Aortic valve-permits one-way blood flow from the right ventricle to the pulmonary trunk

Question 18

The systemic circuit

Accepted Answer

A) sends oxygen-poor blood to the heart. 
B) brings oxygen-rich blood from the tissues. 
C) brings oxygen-poor blood from the lungs. 
D) sends oxygen-rich blood to the tissues. 
A) sends oxygen-poor blood to the heart. 
B) brings oxygen-rich blood from the tissues. 
C) brings oxygen-poor blood from the lungs. 
D) sends oxygen-rich blood to the tissues.

Question 19

Central venous pressure is the pressure in the inferior vena cava at the central point of the abdomen.

Accepted Answer

A) True 
 B)False

Question 20

The pulmonary circuit

Accepted Answer

A) sends oxygen-poor blood to the heart. 
B) sends oxygen-poor blood to the tissues. 
C) sends oxygen-poor blood to the lungs. 
D) brings oxygen-rich blood from the tissues. 
A) sends oxygen-poor blood to the heart. 
B) sends oxygen-poor blood to the tissues. 
C) sends oxygen-poor blood to the lungs. 
D) brings oxygen-rich blood from the tissues.

Exam 15: Cardiovascular System

The longest vein in the body is the

When venous pressure is too low, ________ stimulate smooth muscles in the walls of veins to contract.

The aortic baroreceptor senses stretching of the aorta. How will the nervous system respond?

The apical heartbeat is heard by listening between the fifth and sixth ribs about 7.5 cm left of the midline.

The structures that contain chemoreceptors that detect blood levels of oxygen and carbon dioxide are the

Which of the following waves of an ECG pattern is/are correctly described?

Tim runs 5 to 8 miles a day. He has an enlarged heart and low heart rate and blood pressure. He most likely has

Which of the following is not a normal response to physical exercise?

Pulse pressure is calculated by

The pulmonary trunk divides into the right and left pulmonary arteries about ________ centimeters above its origin.

Circulation is vital because it

A nurse wants to measure a patient's blood pressure. She will have to use a(n)

Heart rate in a fetus is about ________, in a newborn about ________, and in an adult about ________.

Some studies theorize that yawning is a reflex triggered by increased blood pH as carbonic acid is produced to expel CO₂ by exhaling. Which structures would be stimulated to induce yawning if this theory is true?

A person warming up after being cold feels a warm rush as blood flows quickly to the peripheral appendages. Nitric oxide is important in this situation because it

The right atrium receives blood directly from

Which of the following correctly matches the valve to its function?

The systemic circuit

Central venous pressure is the pressure in the inferior vena cava at the central point of the abdomen.

The pulmonary circuit

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Divisions of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

Filters

Heart rate in a fetus is about , in a newborn about , and in an adult about .