Chapter 12, Problem 2CT

a.

Summary Introduction

To describe:

The key elements of the process, through which the immune system is capable of distinguishing between self and non-self

Introduction:

The immune system of an individual is comprised of a network of cells, organs or tissues, which performs together in protecting the body against infections. The body of humans is that place where the pathogens like virus, bacteria, parasites, and fungi can thrive easily. Thus, it is essential to maintain a healthy immune system. The immune system protects the body by generating a response against the particles or foreign microorganism or nonself particles that do not belong to the body.

b.

Summary Introduction

To explain:

The method through which the tissue surveillance is carried out

Introduction:

Surveillance of the immune system refers to a system of the body which is capable of distinguishing between the self-markers and non-self markers. Once the immune system distinguishes between the self and non-self particles, various antigens fight against the non-self particles for the protection of the host body.

c.

Summary Introduction

To determine:

The element that is responsible for the surveillance

Introduction:

The lymphatic system is a network of cells, specialized accessory organs, and vessels. It is involved with three major functions. These functions are: providing a route to extra cellular fluid to get back into the circulatory system. It serves as the “drain off” for several inflammatory responses and provides the surveillance against the non-self particles.

d.

Summary Introduction

To explain:

The term foreign in the context of the immune system

Introduction:

The immune system is the protective system of the body which protects the body from fighting against various pathogens. The response of the immune system against pathogens is called the immune function. Immune function is produced by the blood cells and various nutrients such as vitamins.