Immune System

Question 1

Name the 3 general functions of the blood.

Answer 1

Transportation, regulation, protection

Question 2

What does the blood transport around the body?

Answer 2

o2, co2, nutrients, wastes, hormones

Question 3

Explain the bloods function of regulation.

Answer 3

Regulates pH of body fluids + cooling properties of water in blood plasma helps adjust body temp.

Question 4

Explain the bloods function of protection.

Answer 4

Injury -> blood clots protect against excessive blood loss in CV system, WBCs produce antibodies -> protects against disease

Question 5

What are the names of the 2 other proteins that also protect against disease?

Answer 5

Complement + interferons

Question 6

What is the pH of blood?

Answer 6

7.35-7.45

Question 7

What does blood consist of?

Answer 7

55% plasma + 45% formed elements

Question 8

What do formed elements in the blood include?

Answer 8

RBCs (erythrocytes), WBCs (leukocytes) + platelets

Question 9

What are the 2 types of leukocytes?

Answer 9

Granular (contain granules visible under light microscope after staining) + agranular

Question 10

Name the 3 granular leukocytes.

Answer 10

Neutrophils, eosinophils + basophils

Question 11

Name agranular leukocytes.

Answer 11

T + B lymphocytes, natural killer cells + monocytes

Question 12

Define haematocrit.

Answer 12

% of RBCs in whole blood

Question 13

Define haemopoisesis.

Answer 13

Formation of blood cells in pluripotent stem cells + occurs in red bone marrow