MEMBRANE INTEGUMENT AND HAIR Learning 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 OUTLINE I Covering and Lining Membranes A Cutaneous membrane B Mucous membrane mucosa C Serous membranes serosae II Integument A Functions i waterproof ii excretion iii sensory iv body temp regulation v protection III Layers of Integument A epidermis epithelium B dermis C hypodermis hypo below IV Epidermis A 4 5 layer thick B 4 distinct cell types i keratinocytes ii melanocytes iii Merkel cells iv Langerhans cells C Stratum basale germinativum D Stratum spinosum E Stratum granulosum F Stratum lucidum G Stratum corneum V Dermis A 2 layers i papillary ii reticular network VI Hypodermis VII Burns A 1st degree B 2nd degree C 3rd degree VIII Appendages of Skin A Hair follicle i Follicle ii Hair a bulb b root c shaft d Coarse vs Fine hair e Straight vs Curly hair B Nail finger toe C Sudoriferous sebaceous glands i Sebaceous ii Sudoriferous a eccrine glands b apocrine glands