1. Tissues of the Body

2. Classified by shape and arrangement

3. Types of tissue

4. Epithelial

5. Functions: 1) Protection: covers body and lines all body cavities; provides a protective shield for underlying tissues (e.g. epidermis) 2) Absorption: in some parts of the body it takes in certain materials (e.g. digestive tract) 3) Secretion: in some parts of the body epi. tissue is specialized to secrete certain products E.g. small intestine: some cells are specialized to secrete mucus 4) Excretion: in the kidney cells rid the body of materials 5) Surface transport: cilia on cells in the lungs move mucus and particles up and out 6) Sensory functions: Ex. taste buds in the mouth

6. Epithelial Stratified Transitional – many layers of cuboidal cells that flatten when stretched. Found in ureters, bladder and urethra. Pseudostratified columnar – cells are long and thin, look stratified but aren’t. Has cilia. Makes and secretes mucus. Found in Trachea, bronchi, nasal cavity, auditory tube.

7. Connective

8. Areolar – matrix of soft, sticky glue

9. Adipose – matrix of space and lipids

10. Bone – matrix of calcium and osteons

11. Fibrous – loose – matrix of collagen

12. Hemopoietic – matrix is liquid (plasma)

13. Connective Most have some sort of matrix, an intercellular material found between the cells consisting of fluids, fibers, and proteins. Function: varies depending on the structure and appearance of the tissue. Most help with support framework and transport.

14. Muscle Tissue CardiacSmoothSkeletal

15. Cardiac Striated Branched Inrercalated disks Involuntary

16. Smooth Involuntary Not striated Long, narrow fibers Single nuclei

17. Skeletal Multinucleated Striated Voluntary

18. Muscle Tissue Function: movement of the body. Have the ability to shorten.

19. Nervous Functions in rapid Communication and Control of the body

20. Neuron Conducting units

21. Neuroglia Connecting and supporting cells