Tissue a&P Outline

Chapter 4 Outline

Tissue Level of Organization

4 major types of tissue

1. Epithelial- covers exposed surfaces, lines internal passageways and chambers, and forms glands

2. Connective- fills internal spaces, provides structural support for other tissues, transports materials within the body, and stores energy

3. Muscle- specialized for contraction and includes the skeletal muscles of the body, the muscle of the heart, and the muscular walls of hollow organs

4. Neural- carries information from one part of the body to another in the form of electrical impulses

Histology- study of tissues

Epithelial Tissue

* Layers of cells that cover internal or external surfaces

* Glands- structures that produce fluid secretions

* Important characteristics

* Cellularity

* Polarity

* Attachment

* Base of an epithelium is bound to a thing non cellular basement membrane- also called basal lamina

* Avascularity

* Avascular- they lack blood vessels

* Regeneration

Functions of epithelial tissue

* Physical protection

* Control permeability

* Provided sensation

* Produce specialized secretions

Cell shape and number of layers determine the classification of epithelia

* Simple Squamous

* Stratified Squamous

* Simple Cuboidal

* Stratified Cuboidal

* Simple Columnar

* Stratified Columnar

Types of glands

Connective Tissue

* One of the 4 primary types of tissue, provides a structural framework that stabilizes the relative positions of the other tissue types; includes connective tissue proper, cartilage, bone, and blood. Contains cell products, cells and ground substance.

* Functions of connective tissue

* Establishing a structural framework for the body

* Transporting fluids and dissolved materials

* Protecting delicate organs

* Supporting surrounding and interconnecting other types of tissue

* Storing...