The Blood

Question 1

What is the primary function of blood in the body?

Answer 1

To transport oxygen, nutrients, hormones, and waste products.

Question 2

True or False: Blood is considered a connective tissue.

Answer 2

True

Question 3

What are the two main components of blood?

Answer 3

Plasma and formed elements.

Question 4

Fill in the blank: The liquid component of blood is called ____.

Answer 4

plasma

Question 5

What are the formed elements of blood?

Answer 5

Red blood cells, white blood cells, and platelets.

Question 6

True or False: Red blood cells contain a nucleus.

Answer 6

False

Question 7

What is the role of hemoglobin in red blood cells?

Answer 7

To bind and transport oxygen.

Question 8

What is the average lifespan of a red blood cell?

Answer 8

About 120 days.

Question 9

What type of blood cell is primarily involved in the immune response?

Answer 9

White blood cells.

Question 10

Fill in the blank: The process of blood cell formation is called ____.

Answer 10

hematopoiesis

Question 11

What is the primary function of platelets?

Answer 11

To aid in blood clotting.

Question 12

What is the normal pH range of human blood?

Answer 12

7.35 to 7.45.

Question 13

True or False: Blood volume is the same for all individuals regardless of size.

Answer 13

False

Question 14

What is the average blood volume in an adult human?

Answer 14

About 5 to 6 liters.

Question 15

What are the two main types of circulation in the human body?

Answer 15

Systemic circulation and pulmonary circulation.

Question 16

Fill in the blank: The right side of the heart pumps blood to the ____.

Answer 16

lungs

Question 17

What is the role of the left atrium in the heart?

Answer 17

To receive oxygenated blood from the lungs.

Question 18

What is the primary difference between arteries and veins?

Answer 18

Arteries carry blood away from the heart; veins carry blood to the heart.

Question 19

True or False: Veins have thicker walls than arteries.

Answer 19

False

Question 20

What is the purpose of capillaries?

Answer 20

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

Question 21

What is the term for the pressure exerted by circulating blood on the walls of blood vessels?

Answer 21

Blood pressure.

Question 22

Fill in the blank: The largest artery in the body is the ____.

Answer 22

aorta

Question 23

What condition is characterized by high blood pressure?

Answer 23

Hypertension.

Question 24

What is the term for the process where blood vessels narrow, increasing blood pressure?

Answer 24

Vasoconstriction.

Question 25

What blood type is known as the universal donor?

Answer 25

Type O negative.

Question 26

True or False: The Rh factor is a protein that can affect blood transfusions.

Answer 26

True

Question 27

What is the primary function of plasma proteins?

Answer 27

To maintain osmotic pressure and transport substances.