Immunology Overview

Question 0

The immune system is divided into first line and second line systems. What are they called?

Answer 0

First line: innate

Second line: adaptive

Question 1

Pathogens can be divided into which 2 broad types in the body?

Answer 1

Self and Non-self

Question 2

1. Give 5 examples of innate cells…
2. what cell type do they initiate?
3. What 3 types of cells does this initiate?

Answer 2

1. Macrophages (APC), dendritic cells (APC), mast cells, complementary proteins and inflammatory mediators
2. T-cells
3. B-cells, T-killer cells and T-helper cells

Question 3

What is the basic role of an antibody?

Answer 3

Binds to antigens on pathogens, allowing immune cells contact with the pathogen to destroy it

Question 4

The adaptive immune system can be further divided into what 2 branches?
What cell types are involved in each branch?

Answer 4

Humoral: B-cells

Cell-mediated: T-cells

Question 5

fill in the blanks: A pathogen invades the body. The _____ immunity kicks in. _________ try to consume/destroy it. If they can’t, the ______ immunity kicks in. _______ _______ cells (eg. macrophages and dendritic cells) present the antigen of the pathogen to __-cells. The __-______ cells destroy it or the __-______ cells can activate __-cells which will release ________ to destroy the pathogen

Answer 5

Innate, Phagocytes, Adaptive, antigen presenting, T-cells, T-killer, T-helper, B-cells, antibodies

Question 6

After the first exposure, the adaptive immune response creates what kind of cells incase of a second exposure?

Answer 6

Memory cells