TYPES OF TISSUES

Annotations:

• -fit closely together -Contain an APICAL SURFACE- have one unattached surface or edge may contain cilia -Lower surface of an epithelial cell rests on a BASEMENT MEMBRANE (basal membrane) -Have no blood supply (avascular)...depend on diffusion to obtain O2, etc -Easily regenerate themselves

1. number of layers
   1. simple
   2. stratified
2. shape
   1. squamous-flattened
   2. cuboidal
   3. columnar
   4. pseudostratified

Annotations:

• Connects body parts (connects, supports and binds) Cell secrete EXTRACELLULAR MATRIX -Fibers and “adhesion proteins” -able to form a soft padding around the other tissues -able to bear weight -able to withstand stretching

1. bone
2. cartilage
   1. hyaline
   2. fibrocartilage
   3. elastic
3. dense
   1. tendoms
   2. ligaments
4. loose
   1. Areolar
   2. Adipose
   3. reticular
   4. blood

Annotations:

• Composed of specialized cells called neurons, that conduct electrical impulses across their membranes

Annotations:

• Movement

1. skeletal
2. cardiac
3. smooth