Body Systems (1)

Body Systems By: Alexa Long 2A

Integumentary System Function:The Integumentary System is composed of the skin and its accessory organs (hair, nails, and glands). The skin protects underlying tissue from physical damage, ultraviolet rays, and pathogenic invasion. The skin also ensures body temperature maintence through the process of persperation. During perspiration the sweat glands flush out small amounts of waste products (excretion). Lastly, the skin contains a large number of nerve endings and receptors that detect stimuli related to temperature, touch, pressure, and pain. ❏ derm/o, dermat/o- skin ❏ onych/o- nail ❏ kerat/o- hard, horn-shaped tissue;cornea ❏ myc/o- fungus ❏ xer/o- dry ❏ pil/o- hair, hair folicle ❏ xanth/o- yellow ❏ lip/o- fat ❏ erythr/o- red ❏ rhytid/o- wrinkle ❏ pedicu/o- louse, lice ❏ albin/o- white

Integumentary System Vocabulary: 1. Epidermis- forms the outermost layer of the skin. It is made up of keratain, melanocytes, and stratified squamos epithelium. The epidermis is divided into layers of epithelial tissue. 2. Dermis- (aka corium) lies directly below the epidermis. The dermis is amde up of connective tissue, blood, lymphatic vessels, nerve fibers, hair folicles, and sebaceous/sweat glands. 3. Subcutaneous Layer- (hypodermis) is the deepest layer of the skin. It connects the skin to the surface muscles and is composed of lipocytes. This layer of the skin provides heat insulation and protects the deeper tissues of the body. 4. Gland- is a cell, or groups of cells, that secretes select substances within or out of the body. Two types of glands are sebaceous and sweat glands which are found in the skin. 5. Lipids- are a group of organic compounds that consist of fat, are greasy to the touch, and are insoluble. Lipids lubricate the skin and minimize water loss. 6. Arrector Pili- are bundles of very small muscle fibers that are attachedto the hair follicles. They form goosebumps. 7. Lunula- is the semilunar white area at the proximal end of the nail. 8. Lipocytes- are cells that manufacure and store fat. 9. Sweat Glands- are tiny, coiled glands located in the dermis that extend up through the epidermis. 10. Perspiration-conatins 99% water and 1% salt and metabolic waste products. The act of perspiring cools the body asthe sweat evaporates into the air. 11. Nails-are amde up of hard keritain and cover the dorsal surface of the last bone of each finger, and toenails cover the superior surface of each toe. 12. Cuticle-is a narrow band of epidermial tissue attached to the surace of the nail, at the base and sides of the nail plate.

Integumentary System Disease/Disorders: Healthcare Careers: 1. Acne-inflammatory disorder of the 1. Dermatologist-is a physician who diagnoses and sebaceous glands that produce pimples on treats conditions and diseases of the skin, hair, the skin. and nails. 2. Albinism- an inherited condition that 2. Dermatology Nurse Practicioner- preform many prevents the normal production of melanin, of the same tasks as physicians. NP’s may resulting in extremely pale skin and white prescribe certain medications, order lab work, hair. and preform procedures such as suturing wounds. 3. Burns-injuried to skin tissue caused by prolong heat contact 3. Dermatology Technician- is a specialized medical assistant who works in the skin-care field.They 4. Ecchymosis-black and blue or purpilish bruise assist licensed dermatologists or PA’s. caused by ruptured blood vessel beneath the skin. 4. Dermapathologist- specialize in diagnosing diseases of the skin, hair, and nails. 5. Keloid- an abnormally raised, thickened scar. 6. Basal Cell Carcinoma- commonly slow-growing, malignant tumor of the basal cell layer of the epidermis.

Works Cited ● Medical Terminology Textbook ● “Medical Professions.” Integumentary System - Home, thehumanskinsystem.weebly.com/medical-professions.html. ● Grigorovsky, Chris. “EU-Supported Wearable Laser Cures Chronic Skin Conditions.” Health Europa, 20 Feb. 2018, www.healtheuropa.eu/wearable-laser-chronic-skin-conditions/84425/.