PPT-Diseases of the Hair, Wool, Follicles, and Skin Glands

By Dr Hussein AlNaji Alopecia And Hypotrichosis Etiology Alopecia and hypotrichosis are defined as lack of hair in any quantity on a normally haired body surface In contrast to alopecia. SKIN. The Integumentary System. On average, adult skin covers over 3,000 square inches of surface area and accounts for about 15% of the total body weight.. Skin is the largest organ of the body.. Epidermal cells live about 2-4 weeks and as humans, we are constantly shedding dead skin cells.. Introduction to the SKIN! . Integumentary System . Skin (aka- . cutaneous. membrane). Nails. Hair Follicles. Skin Glands. The skin is the largest organ by weight. Functions. :. Protective covering. Slows water loss. HCT I. Layers of The Skin. Two primary layers. Epidemis. Dermis. Subcutaneous Tissue- A layer of loose connective tissue and fat that supports the epidermis and dermis.. Insulates the body. Stored source of energy. The Colonies . (what is now the United States). History of Wool. What 2 Presidents had flocks of sheep and were both inaugurated in wool suits?. George Washington. & Thomas Jefferson. Integumentary. System. Part 2. Appendages of the Skin. Skin Appendages. Glands. all arise from stratum . basale. then extend into dermis & subcutaneous layers. all exocrine glands. Release product thru a duct onto surface of skin. Skin Pigment. The color of your skin is due to an interaction between:. (1) epidermal pigmentation. (2) dermal circulation. Epidermal Pigmentation. Two pigments present in the epidermis:. (1) Carotene – orange-yellow pigment found in the stratum . Skin. A. The largest organ of the body. B. Composed of sweat and oil glands, nails, hair, and skin. C. A system of specialized tissue. 1. Glands that secrete fluids. 2. Nerves that carry impulses. are located on top of each kidney.. Adrenal Glands. Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.. Cortex . (outer) – bulk of gland (75%); glandular tissue. Medulla . (inner) – nervous tissue; SNS. September 23-24 2014. Skin Appendages. The skin appendages include cutaneous glands, hair, and nails.. Cutaneous Glands. What . is cutaneous? . What is an exocrine gland? . . Cutaneous Glands. What . thin. type. . . thick. type. . Keratinized. adnexa . hair. . . . nail. Nonkeratinized. adnexa . small. hormones: chemicals released into the bloodstream by endocrine glands. Pituitary gland: gland located in the brain that secretes human growth hormone and influences all other hormone-secreting glands (also known as the master gland). Assistant lecturers. . Sadiq Salam H. . Hassanain. Mohammed K.. Kareem . Waheed. . M. Hussein Khadim H. . . Al-. Mustaqbal. University College. Department of Nursing. What are the functions of the integumentary system?. Protection. Sensory Perception. Body temperature regulation. Storage. Absorption. Excretion. Production. protection. barrier to the sun’s UV rays & invasion of pathogens. products, drugs and pollutants on skin and hair growth [13]The histoculture of intact skin on sponge-gel matrices offersmany opportunities for tissue engineering and for the invitrostudy of important