Question 1

The heart pumps about ____ liters of blood a day and contracts about _____ times in a lifetime.

Accepted Answer

A)  1,000 liters; 1 billion 
B)  1,200 liters; 2 billion 
C)  3,000 liters; 2 billion 
D)  7,000 liters; 2.5 billion 
A)  1,000 liters; 1 billion 
B)  1,200 liters; 2 billion 
C)  3,000 liters; 2 billion 
D)  7,000 liters; 2.5 billion

Question 2

Which of the following is true about the heart?

Accepted Answer

A)  The apex end points downward at about the 5th intercostal space. 
B)  The heart is located lateral to the lungs. 
C)  The average adult heart is about 8 cm long and 5 cm wide. 
D)  The base of the heart lies beneath the fourth rib. 
A)  The apex end points downward at about the 5th intercostal space. 
B)  The heart is located lateral to the lungs. 
C)  The average adult heart is about 8 cm long and 5 cm wide. 
D)  The base of the heart lies beneath the fourth rib.

Question 3

Factors that increase heart rate and blood pressure include

Accepted Answer

A)  emotional responses. 
B)  exercise. 
C)  increase in body temperature. 
D)  all of the above. 
A)  emotional responses. 
B)  exercise. 
C)  increase in body temperature. 
D)  all of the above.

Question 4

Angiotensin II increases blood pressure by

Accepted Answer

A)  increasing peripheral resistance. 
B)  releasing renin. 
C)  inhibiting the release of aldosterone. 
D)  promoting the excretion of sodium. 
A)  increasing peripheral resistance. 
B)  releasing renin. 
C)  inhibiting the release of aldosterone. 
D)  promoting the excretion of sodium.

Question 5

Marjorie suffers from phlebitis. She has

Accepted Answer

A)  inflammation of her veins. 
B)  too much phlegm in her throat. 
C)  extra capillaries in her legs. 
D)  inflammation of her arteries. 
A)  inflammation of her veins. 
B)  too much phlegm in her throat. 
C)  extra capillaries in her legs. 
D)  inflammation of her arteries.

Question 6

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 7

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 
A)  Positive intrathoracic pressure 
B)  Valves in the arteries 
C)  Contracting skeletal muscles 
D)  Capillary action

Question 8

Because net inward pressure in the venular ends of capillaries is less than net outward pressure in the arteriolar ends of capillaries,

Accepted Answer

A)  more fluid flows into the capillaries than moves out. 
B)  the lymphatic vessels push fluid into the capillaries. 
C)  the pressure in the venules increases. 
D)  more fluid leaves the capillaries than returns. 
A)  more fluid flows into the capillaries than moves out. 
B)  the lymphatic vessels push fluid into the capillaries. 
C)  the pressure in the venules increases. 
D)  more fluid leaves the capillaries than returns.

Question 9

The coronary sinus drains blood from the wall of the heart into the left atrium.

Accepted Answer

A) True 
 B)False

The heart pumps about liters of blood a day and contracts about _ times in a lifetime.

Which of the following is true about the heart?

Factors that increase heart rate and blood pressure include

Angiotensin II increases blood pressure by

Marjorie suffers from phlebitis. She has

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

Which of the following helps return blood to the heart?

Because net inward pressure in the venular ends of capillaries is less than net outward pressure in the arteriolar ends of capillaries,

The coronary sinus drains blood from the wall of the heart into the left atrium.

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: Division 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-Based Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

Filters

Exam 15: Cardiovascular System

The heart pumps about ____ liters of blood a day and contracts about _____ times in a lifetime.

Which of the following is true about the heart?

Factors that increase heart rate and blood pressure include

Angiotensin II increases blood pressure by

Marjorie suffers from phlebitis. She has

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

Which of the following helps return blood to the heart?

Because net inward pressure in the venular ends of capillaries is less than net outward pressure in the arteriolar ends of capillaries,

The coronary sinus drains blood from the wall of the heart into the left atrium.

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: Division 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-Based Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

Filters

The heart pumps about liters of blood a day and contracts about _ times in a lifetime.