Transport In Humans

Question 1

What is the primary function of the circulatory system?

Answer 1

To transport nutrients, gases, hormones, and waste products throughout the body.

Question 2

True or False: Arteries carry blood away from the heart.

Answer 2

True

Question 3

Fill in the blank: Veins carry blood ______ the heart.

Answer 3

to

Question 4

What type of blood do pulmonary arteries carry?

Answer 4

Deoxygenated blood

Question 5

What is the largest artery in the human body?

Answer 5

Aorta

Question 6

Short answer: Name two components of blood.

Answer 6

Red blood cells and plasma

Question 7

Multiple choice: Which part of the heart pumps oxygenated blood to the body? A) Right atrium B) Left ventricle C) Right ventricle D) Left atrium

Answer 7

B) Left ventricle

Question 8

What is the function of capillaries?

Answer 8

To facilitate the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.

Question 9

True or False: The heart has four chambers.

Answer 9

True

Question 10

Fill in the blank: The ______ valve prevents backflow of blood from the aorta into the left ventricle.

Answer 10

aortic

Question 11

What type of blood do veins generally carry?

Answer 11

Deoxygenated blood (except for pulmonary veins)

Question 12

Multiple choice: Which vessel returns blood from the body to the heart? A) Aorta B) Pulmonary vein C) Superior vena cava D) Coronary artery

Answer 12

C) Superior vena cava

Question 13

Short answer: What is the role of the septum in the heart?

Answer 13

To separate the left and right sides of the heart.

Question 14

What is the function of the valves in the heart?

Answer 14

To ensure one-way blood flow through the heart.

Question 15

True or False: Blood pressure is the force exerted by circulating blood on the walls of blood vessels.

Answer 15

True

Question 16

Fill in the blank: The ______ circuit carries blood between the heart and lungs.

Answer 16

pulmonary

Question 17

Multiple choice: Which of the following is a function of red blood cells? A) To transport oxygen B) To produce hormones C) To fight infections D) To clot blood

Answer 17

A) To transport oxygen

Question 18

Short answer: What is the main component of plasma?

Answer 18

Water

Question 19

What is the role of the coronary arteries?

Answer 19

To supply blood to the heart muscle.

Question 20

True or False: The left side of the heart deals with oxygenated blood.

Answer 20

True

Question 21

Fill in the blank: The ______ is the pacemaker of the heart.

Answer 21

sinoatrial node

Question 22

Multiple choice: Which type of blood vessel has thick muscular walls? A) Veins B) Capillaries C) Arteries D) None of the above

Answer 22

C) Arteries

Question 23

Short answer: What happens during diastole?

Answer 23

The heart relaxes and fills with blood.

Question 24

What is the main gas exchanged in the lungs?

Answer 24

Oxygen and carbon dioxide

Question 25

True or False: The human heart is a double pump.

Answer 25

True

Question 26

Fill in the blank: Blood returns to the heart through the ______.

Answer 26

veins