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Connective_tissue.pptx
- 1. Connective Tissue Chapter 4.2 Human Anatomy & Physiology
- 2. Connective Tissue ■ Function: - Binds structures together - Provides support & protection - Fills spaces - Produces blood cells - Stores fat ■ For energy, insulation, organ protection
- 3. Parts of tissues ■ Structure: - Tissue cells are widely separated by extracellular matrix - Can be solid, semisolid, or liquid ■ Matrix of connective tissue determine its properties
- 4. Fibers of the Matrix ■ White fibers – contain collagen which gives the fibers flexibility and strength ■ Yellow fibers – contain elastin more elastic than collagen but not as strong ■ Reticular fibers – thin, highly branched collagenous fibers that provide support
- 6. 1. Fibrous Connective Tissue ■ Loose (areolar) connective tissue ◻ adipose ■ Dense connective tissue ◻ Regular ◻ irregular ■ Reticular connective tissue
- 7. A. Loose (areolar) Connective Tissue ■ Lies between other tissues or between organs binding them ■ Cells made of fibroblasts – large, star-shaped cells ■ Contains many white fibers (strong and flexible) and yellow fibers (very elastic)
- 9. ■ Adipose tissue is a type of loose connective tissue - stores fats, provides insulation - found beneath skin, around kidney & heart, breast
- 11. B. Dense Connective Tissue Regular ■ Consists of parallel bundles of collagenous fibers ■ Found in tendons & ligaments ■ Binds organs together Irregular ■ Bundles run in different direction ■ Found in inner portion of skin
- 12. Dense Regular Dense Irregular
- 13. 2. Cartilage ■ The cell (chondrocytes) lies in small chambers called lacunae ■ Matrix is solid yet flexible ■ Lacks direct blood supply, as a result, it heals slowly
- 14. ■3 types - Hyaline cartilage-trachea - Elastic cartilage – ear - Fibrocartilage - ACL
- 15. 3. Bones ■ Most rigid of the connective tissues ■ Minerals and protein fibers gives bone rigidity, elasticity and strength ■ Two types: ◻ Compact bone ◻ Spongy bone
- 16. A. Compact Bone ■ Found in the outer portion of long bones ■ Consists of many cylindrical-shaped units called osteon
- 18. B. Spongy Bone ■ Found on ends of long bone ■ Contains bony bars and plates called trabeculae separated by irregular spaces ■ Blood cells are made within the red marrow found in the spongy bone
- 20. 4. Blood ■ Connective tissue composed of cells suspended in liquid matrix called plasma ■ Red blood cells (erythrocytes) – carries oxygen ■ White blood cells (leukocytes) – fights infection ■ Platelets – fragment of giant cells found in bone marrow