Chapter 20 Lymphatic System Cont'd

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1

There are 4 types of Lymphoid Cells. Name them.

Lymphocytes,Macrophages, Dendritic Cells, Reticular Cells

2

There are two types of lymphocytes

T lymphocytes and B lymphocytes

3

What do Macrophages do?

phagocytize foreign substances and help activate T cells

4

Dendritic cells do what?

capture antigens and deliver them to lymph nodes

5

Reticular cells do what?

produce stroma that supports other cells in lymphoid organs (help filter)

6

Define an antigen

Anything the body perceives as foreign

7

Made up of reticular fibers and white blood cells

lymphoid tissue

8

What does lymphoid tissue do?

houses and provides a proliferation site for lymphocytes

9

There are two main types of lymphoid tissue?

Diffuse lymphatic tissue and Lymphatic follicles

10

Define lymphatic follicles

spherical bodies of tightly packed reticular elements and cells