1. Tissues Definition: Types:
1. Epithelial – form protective coverings and function in secretion and absorption.
A group of similar cells that perform a specialized function.
2. Connective – support soft body parts and bind structures together.
3. Muscle – produce body movements
4. Nervous – conduct impulses that help control and coordinate body activities.
Tissues
1 - cells
2 – Extracellular matrix – nonliving portion that transmits signals from outside cells into cells
Parts:
Levels of Organization:

2. Introduction to Tissues
A tissue is a group of similar cells That usually have common origin & function.
The structure & properties of tissue depends on the nature of extracellular material.
Tissues may be hard, semisolid, or even liquid in their consistency,
Examples: bone, fat and blood

3. 4 Basic Tissue Types
Epithelial Tissue: Covers body surfaces & lines hollow organs, body cavities, and ducts. Forms glands
Connective Tissue: Protect & supports the body & its organs. Binds organs together, store energy & help provide immunity to disease- causing organisms
Muscular Tissue: Generates physical force
Nervous Tissue: Detect changes in a variety of conditions inside & outside the body & respond by generating nerve impulses