Terminology tissue

group of cells with similar structure and function plus extracellular substance (matrix)

Study of tissue

lines cavities and covers body surfaces (internal and external)

attaches epithelial cells to underlying tissues

“apical surface”, Surface not in contact with other cells
Faces either a body fluid or an outside environment

increase cell’s surface area

move materials across cell’s surface

produce mucus

Cells far apart
Classified based on type of extracellular matrix and function

Type of connective tissue
Composed of chondrocytes
Contains collagen
Withstands compressions
Provides support, flexibility, strengtH

Hard connective tissue
2 types: compact and spongy
Composed of osteocytes

Liquid connective tissue
Erythrocytes, leukocytes, platelets
Transport food, oxygen, waste, hormones

Consist of neurons or nerve cells (neurons)
Found in brain, spinal cord, and peripheral nerves
transmits electrical signals throughout the body
Controls and coordinates body movements
Includes axons, dendrites, cell bodies

structures that secrete substances onto a surface, into a cavity, or into blood

Occurs when tissues are damaged
Signals the body’s defenses (white blood cells) to destroy foreign materials and damaged cells so repair can occur.

released after injury
cause dilation of blood vessels

substitution of dead cells for viable cells