1. TISSUES: The Living Fabric Tissue - a group cells similar in structure and function Histology - the study of tissues

2. EMBRYONIC GERM LAYERS Ectoderm - epidermis of the skin,nervous system Endoderm - functional lining of the digestive, respiratory tract; accessory organs and glands such as lungs, stomach,pancreas Mesoderm - skeletal system, muscular system, and circulatory system

3. MAIN TISSUE TYPES Epithelial Connective Muscle Nervous

4. Epithelial Tissue

5. EPITHELIAL TISSUE Location –Any lining or covering of the body –Forms may glands Characteristics –Cellularity –Specialized contact structures –Polarity –Supported by connective tissue –Avascular yet innervated –Regeneration

6. EPITHELIAL TISSUE FUNCTIONS: –Protection –Absorption –Filtration –Secretion –Gas exchange

7. EPITHELIAL TISSUE CLASSIFICATION

8. EPITHELIAL TISSUE

14. Glandular Epithelium –Endocrine –Exocrine Merocrine Holocrine Apocrine ???

15. Connective Tissue

16. CONNECTIVE TISSUE Location –Throughout body –Most abundant type Characteristics –Common origin –Diverse cell types –Diverse vascularity –Possess extracellular matrix –No free surfaces

17. ORIGIN OF CONNECTIVE TISSUES

18. CONNECTIVE TISSUE Functions: –Physical protection –Binding and supporting –Absorb shock –Insulation –Stores energy –Transportation –Immunity

19. CONNECTIVE TISSUE FIVE GENERAL TYPES –Loose connective tissue –Dense connective tissue –Cartilage –Osseous –Blood

20. Loose Connective Tissues Areolar Adipose Reticular

21. CONNECTIVE TISSUE

24. Dense Connective Tissue Dense Regular Dense Irregular Elastic

25. CONNECTIVE TISSUE

27. CARTILAGE Hyaline Elastic Fibrocartilage

28. CONNECTIVE TISSUE

31. Osseous Tissue Compact bone Spongy bone

32. CONNECTIVE TISSUE

33. Blood

34. CONNECTIVE TISSUE

35. Nervous Tissue

36. Locations : –Central nervous system (CNS) –Peripheral nervous system (PNS) Functions: –Detects changes in internal and external environment –Receives, transmits, and integrates impulses –Homeostasis

37. NERVOUS TISSUE

38. Muscle Tissue

39. Locations: –Attached to bones –Walls of digestive organs and blood vessels –Walls of heart Functions: –Locomotion –Movement of food through digestive tract –Movement of blood throughout circulation

40. MUSCLE TISSUE

43. MEMBRANES