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Unit 3 Seminar The Integumentary System and Body Membranes

Unit 3 Seminar The Integumentary System and Body Membranes. Chapter 6 Thibodeau Amy J. Hilbelink Ph.D. Classification of body membranes. Epithelial Connective. Classification of body membranes. Epithelial Cutaneous membrane Serous membrane Mucous membrane Connective. Functions of Skin.

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Unit 3 Seminar The Integumentary System and Body Membranes

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  1. Unit 3 SeminarThe Integumentary System and Body Membranes Chapter 6 Thibodeau Amy J. Hilbelink Ph.D.

  2. Classification of body membranes • Epithelial • Connective

  3. Classification of body membranes • Epithelial • Cutaneous membrane • Serous membrane • Mucous membrane • Connective

  4. Functions of Skin • Protection • Temperature regulation • Sense organ activity • Let’s discuss how the skin does this…

  5. Serous membranes • Visceral = covers the surface of organs found in body cavities. • Parietal = lines the wall of a body cavity, much like wallpaper covers the walls of a room

  6. Serous membranes • Found only on surfaces within closed cavities. Transverse - section from below

  7. Mucous membranes • They line body cavities that open to the exterior of the body. • The mucus keeps the area moist and lubricated. • So, where in the body are they found?

  8. Mucous membranes are found in…. • Respiratory tract • Digestive tract • Urinary tract • Reproductive tract • Note that the secretion is spelled mucus and the membrane is spelled mucous.

  9. Did you know that skin has appendages? • Hair • Receptors (two kinds of receptor corpuscles) • Nails • Skin glands • Sudoriferous = sweat • Eccrine and apocrine • Sebaceous glands = microscopic

  10. Functions of Skin • Protection • Temperature regulation • Sense organ activity • What would happen in a burn situation?

  11. Degrees of burns • 1st degree • Minor discomfort to epidermis, does not blister • 2nd degree • Involves deep epidermal layers and damage to upper layers of dermis. • 3rd degree • Complete destruction of the epidermis and dermis. May require skin grafting or amputation of limbs.

  12. Classification of burns • Depth and number of tissue layers involved • Total body surface area affected • Type of homeostatic mechanisms, such as respiratory or blood pressure control and fluid electrolyte balance, that are damaged or destroyed.

  13. Estimating body surface

  14. Melanin Epithelial membrane Pacinian corpuscle Sebaceous Waterproofing Hair Lunula Connective tissue membrane Dermal papillae Sudoriferus A. Fingerprint B. Pressure C. Brown pigment D. Pleura E. Synovial membrane F. Perspiration G. Oil H. Follicle I. Keratin J. Little moon Matching exercise

  15. Answers – how did you do? • 1. C • 2. D • 3. B • 4. G • 5. I • 6. H • 7. J • 8. E • 9. A • 10. F

  16. Weblinks • Burns • http://www.aafp.org/afp/20001101/2015.html • Dermatology image bank • http://tray.dermatology.uiowa.edu/DermImag.htm

  17. Any questions • ???

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