I. Covering and Lining MembranesMEMBRANE, INTEGUMENT AND HAIRLearning Goals:1) Define, compare and contrast serous and mucosal membranes.2) List the components of the integumentary system.3) Explain how skin and its appendages are organs of the integumentary system.4) Describe the functions of the integument.5) List the tissue types that compose epidermis and dermis.6) Describe the structure and function of all 5 layers of the epidermis, from deep to superficial; list the key functions an d cell types of each stratum. 7) Explain why the superficial part of the skin is dead.8) Distinguish between thick skin and thin skin; indi`cate which is hairy and which is hairless. 9) Describe the anatomy of dermis and structures found within dermis.10) Describe the structures and functions of the hypodermis.11) Explain how variations in melanin distribution in human skin create different skin tone.12) List the parts of a hair and a hair follicle; explain how the structure of the hair shaft contributes to hair type, including color and shape.13) Illustrate the differences in the length of hair growth cycles, comparing hair of the head to hair of the arms or legs.14) Identify major disorders of the integumentary system, including skin cancer and burns.15) Predict the consequence of skin loss (e.g., burn victim).16) Compare and contrast oil glands and sweat glands; identify locations, secretions, and special modifications.17) Explain the structure and function of nails.OUTLINEI. Covering and Lining MembranesA. Cutaneous membraneB. Mucous membrane (mucosa)C. Serous membranes (serosae)II. IntegumentA. Functions:i. waterproofii. excretion iii. sensory iv. body temp regulationv. protectionIII. Layers of IntegumentA. epidermis = epitheliumB. dermisC. hypodermis (hypo=below)IV. EpidermisA. 4-5 layer thickB. 4 distinct cell typesi. keratinocytesii. melanocytesiii. Merkel cellsiv. Langerhans cellsC. Stratum basale (germinativum)D. Stratum spinosumE. Stratum granulosumF. Stratum lucidumG. Stratum corneumV. DermisA. 2 layers:i. papillaryii. reticular ("network")VI. HypodermisVII. BurnsA. 1st degreeB. 2nd degreeC. 3rd degreeVIII. Appendages of SkinA. Hair & folliclei. Follicle ii. Haira. bulbb. rootc. shaftd. Coarse vs. Fine haire. Straight vs. Curly hairB. Nail (finger & toe)C. Sudoriferous & sebaceous glandsi. Sebaceousii. Sudoriferousa. eccrine glandsb. apocrine