TISSUE LEVEL OF ORGANIZATION

Tissue

group of cells that work together to perform specific functions.

Four main types of tissues:

1. Epithelial Tissue

2. Connective Tissue

3. Muscle Tissue

4. Nervous Tissue

covers exposed surfaces; lines internal passageways and chambers; forms secretory glands; forms boundaries between different environments, protects, secretes absorbs, and filters!

Epithelial Tissue

fills internal spaces; provides structural support; stores energy; supports, protects, binds other tissues together.

Connective Tissue

contracts to produce/cause movement; includes skeletal muscle, cardiac muscle, and smooth muscle

Muscle Tissue

Conducts electrical Impulses; carries information; it’s for Internal Communication

Nervous Tissue

this contains the brain, spinal cord, and nerves

Nervous Tissue

includes muscles attached to bones (skeletal), muscles of heart (cardiac), and muscles of walls of hollow organs (smooth).

Muscle Tissue

it’s the lining of digestive tract organs and other hollow organs. Also refers to the skin surface (epidermis).

Epithelial Tissue

includes the bones, tendons, fat and other soft padding tissue

Connective Tissue

It covers exposed surfaces, line internal passageways and chambers, and forms glands.

Epithelial Tissue

The functions of the Epithelial Tissue

Physical protection, Control permeability, provide sensation, and produce specialized secretions

Glandular Epithelia (exocrine and endocrine glands)

Specialized functions of Epithelial tissues

1.

Apical (free) Surface

2.

Lateral Surfaces

3.

Epithelium

4.

Basal Surface

5.

Basement Membrane

6.

Basal Jamina

7.

Reticular Lamina

8.

Connective Tissue

9.

Blood Vessel

10.

Nerve

Exocrine Glands & Endocrine Glands

Types of Epithelial Glands