1. Histology Notes and Slides Human Anatomy and Physiology

2. Histology is the branch of anatomy that deals with the minute structure of animal tissue on a microscopic level.

3. What is a tissue? A group of cells that all perform the same specific function. A group of cells that all perform the same specific function. Example, cardiac Muscle or nerves Example, cardiac Muscle or nerves

4. Origin of Cells All cells come from stem cells. These change to support a specific function of the body. All cells come from stem cells. These change to support a specific function of the body. Differentiation is the changing of a stem cell into specific tissue types. Differentiation is the changing of a stem cell into specific tissue types. Who’s My Daddy?

5. Three Major Tissue Types Epithelial Epithelial Connective Connective Membranes Membranes

6. Epithelial Tissue Function: for protection from drying out, injury and invasion. Function: for protection from drying out, injury and invasion. Four main subtypes: Four main subtypes: –A) Squamous –B) Cuboidal –C) Columnar –D) Ciliated columnar Exist on the skin and on the surface of organs and blood vessels Exist on the skin and on the surface of organs and blood vessels

7. Connective Function: binds, supports, protects and fills spaces. Function: binds, supports, protects and fills spaces. Types: Loose, Fibrous, Cartilage, Bone, Blood, Muscle*, Nerves* Types: Loose, Fibrous, Cartilage, Bone, Blood, Muscle*, Nerves* All exist in a matrix that pushes cells apart and provides structure. All exist in a matrix that pushes cells apart and provides structure.

8. Membranes Function: protection from infection, injury and friction Function: protection from infection, injury and friction Main Types: Mucous, Serous, Synovial, Meninges and Cutaneous Main Types: Mucous, Serous, Synovial, Meninges and Cutaneous All produce fluids which line surfaces All produce fluids which line surfaces

9. Something to think about… Why is it important to know and recognize what ‘healthy’ tissue looks like? So, we can identify unhealthy, diseased tissue when we see it.

10. Let’s see some slides! Get ready to draw and color with precision and detail!

11. EPITHELIAL

12. Epithelial-Cuboidal

13. Epithelial-Columnar

14. Epithelial-Ciliated Columnar

15. Squamous epithelial

16. CONNECTIVE LOOSE

17. Connective Tissue-Loose Elastin fiber AREOLAR

18. Connective Tissue-Loose nucleus Nucleus Cell Membrane

19. CONNECTIVE CARTILAGE

20. HYALINE Matrix- holds the substance secreted by cell Lacuna- space in the matrix is called lacuna Chondrocytes- secrete the collagen into the matrix.

21. ELASTIC ELASTIC densely packed elastic fibers cartilage

22. Fibrous

23. Blood and Bone

24. CONNECTIVE MUSCULAR

25. SMOOTH

26. SKELETAL striations across muscle fiber

27. CARDIAC

28. Compare…Which is which?

29. SMOOTH Skeletal CARDIAC

30. ONE MORE….NERVE CELL Cell bodyAxons Dendrites

31. MEMBRANE Mucous and Serous

32. MEMBRANES-Mucous Mucous

33. MEMBRANES-Serous Serous Cells

34. Webliography The Ohio State University at Lima. Anatomy and Physiology Study Page. 2005. http://www.lima.ohio- state.edu/academics/biology/images/anatomy/Blood%20400X.jpg The Ohio State University at Lima. Anatomy and Physiology Study Page. 2005. http://www.lima.ohio- state.edu/academics/biology/images/anatomy/Blood%20400X.jpghttp://www.lima.ohio- state.edu/academics/biology/images/anatomy/Blood%20400X.jpghttp://www.lima.ohio- state.edu/academics/biology/images/anatomy/Blood%20400X.jpg Indigo instruments 2006. Indigo instruments 2006. http://www.indigo.com/software/hh_index.html http://www.indigo.com/software/hh_index.html http://www.indigo.com/software/hh_index.html  Histology Micrographs. Pennisula College. Anatomy and Phsyiology http://www.pc.ctc.edu/hart/cardiova/cardiac.html  SIUC School of Medicine 2006 http://www.siumed.edu/~dking2/ssb/NM017b.htm http://www.siumed.edu/~dking2/ssb/NM017b.htm