The Test Format • Lots of matching this time – Parts of the skin locations – Skin Disorders – Skin Color – Hair Vocabulary • 22 Multiple Choice • 2 Short Answer • Now for the game. You will need a white board, marker and eraser Choose Your Category Skin Colors Skin Disorders Parts of the Skin Hair Definitions Membranes Burns and Cancer Finger Prints Miscellaneous 100 100 100 100 100 100 100 100 200 200 200 200 200 200 200 200 300 300 300 300 300 300 300 300 400 400 400 400 400 400 400 400 500 500 500 500 500 500 500 500 600 600 600 600 600 600 600 Final Jeopardy Skin Colors - 100 • Locations where blood has escaped from the circulation and has clotted in the tissue spaces. • Black and Blue The Answer is Bruises Back Skin Colors - 200 • Can be cuased by emotional stress as well as anemia, low blood pressure, or impaired blood flow into an area. • Blanching The Answer is Pallor Back Random Points 300 Skin Colors - 300 • Usually signifies a liver disorder in which excess bile pigments are absorbed into the blood, circulated throughout the body, and deposited in body tissue. • Yellow The Answer is Jaundice. Back Skin Colors - 400 • Indicates embarrassment, fever, hypertension, inflammation, or allergy • Redness The Answer is Erythema. Back Skin Colors - 500 • Caused by poorly oxygenated hemoglobin, which could be caused by heart failure or breathing disorders. • Blueness The Answer is Cyanosis. Back Random Points 200 Skin Disorders - 100 • This defect has signs of burning and blistering and is usually found around the toes. The Answer is Athlete’s Foot Back Skin Disorders - 200 • These are pus-filled bumps that start as red, tender lumps. They fill with pus, grow larger, and finally rupture and drain. The Answer is Boils and Carbuncles Back Skin Disorders - 300 • This disorder is a silvery scabbing over of the skin with the skin reddening. The Answer is Psoriasis Back Skin Disorders - 400 • The cause of this disorder can be Herpes or an infection. They can be spread by close personal contact. Treatment includes creams such as Abreva and Sensigel. •The Answer is Cold Sores Back Skin Disorders - 500 • This is red and itchy dry skin. Itching my start and a rash will appear. Persistent scratching of itchy skin can lead to redness, swelling, cracking, weeping of clear fluid, crusting, and scaling. •The Answer is Eczema Back Skin Disorders - 600 • This condition is caused by a highly contagious streptococcus infection and can usually be cured with antibiotics. •The Answer is Impetigo Back Parts of the Skin – 100 • Location O. The Answer is eccrine sweat gland Back Parts of the Skin – 200 • This most superficial layer of the dermis contains fingerlike projections as well as pain receptors and touch receptors. The Answer is Papillary Layer Back Parts of the Skin – 300 • This is most superficial layer of the epidermis. In this layer, the cells are completely dead and full of keratin and are about the top 20-30 cell layers thick. The Answer is stratum corneum. Back Parts of the Skin – 400 • This is the deepest part of the dermis; this layer contains blood vessels, sweat and oil glands, as well as collagen and elastic fibers. The Answer is Reticular Layer. Back Parts of the Skin – 500 • This is the deepest part of the epidermis and it is also closest to the blood supply. As a result, they are constantly dividing and pushing cells up to the surface. The Answer is stratum basale. Back Parts of the Skin – 600 • Freckles and moles are seen when this pigment is concentrated in one area. The Answer is melanin Back Hair Definitions - 100 • The growth zone of the hair. The Answer is matrix Back Hair Definitions - 200 • The intermediate, bulky layer of the hair. The Answer is cortex. Back Hair Definitions - 300 • A compound structure that surrounds the hair and helps to form and nourish the hair. The Answer is the hair follicle. Back Daily Double Hair Definitions - 400 • Nipple-like structure that provides the blood supply to the matrix. The Answer is papilla Back Hair Definitions - 500 • This is composed of epithelial tissue and forms the hair. The Answer is epidermal sheath Back Hair Definitions - 600 • This causes hair to stand on end and goose bumps. The Answer is arrector pili Back Membranes - 100 • This is another name for the skin. The Answer is cutaneous membrane Back Membranes - 200 • This type of membrane is composed of epithelium resting on a loose connective tissue membrane called a lamina propria. •The Answer is mucous membrane. Back Membranes - 300 • This refers to the membrane that surrounds the lungs. The Answer is pleura Back Membranes - 400 • This membrane type which can be found around joints is composed of soft areolar connective tissue and contains no epithelial cells at all. The Answer is synovial membrane Back Random Points 300 Membranes - 500 • This is the inner layer of a serious membrane that touches the organ. The Answer is visceral layer Back Membranes - 600 • This is the outer layer of a serious membrane that is fused to the cavity wall. The Answer is parietal layer Back Burns and Cancer - 100 • This is defined as tissue damage and cell death caused by extreme heat, electricity, UV radiation, or certain chemicals. The Answer is a burn Back Burns and Cancer - 200 • This type of burn results in destroyed nerve endings and requires skin grafts to cover the exposed tissue. The Answer is 3rd Degree Back Burns and Cancer - 300 • This is the most deadly form of skin cancer that appears as a spreading brown to black patch that spreads quickly to surrounding lymph and blood vessels. The Answer is Malignant Melanoma Back Burns and Cancer - 400 • When determining the severity of burns, this test is indirectly used to determine the volume of fluids lost. The Answer is rule of nines Back Burns and Cancer - 500 • This is the most common skin cancer in which the cells cannot form keratin and start to invade the dermis and subcutaneous tissue. The Answer is basal cell carcinoma Back Daily Double Burns and Cancer - 600 • What do the letters in the ABCD rule for recognizing melanoma mean? The Answer is Asymmetry, Border Irregularity, Color, Diameter Back Finger Prints - 100 • This is the center of a loop or whorl. The Answer is core Back Finger Prints - 200 • This is the least common pattern of fingerprint and makes up about 5% of the population. The Answer is arches Back Finger Prints - 300 • This is the most common fingerprint pattern, which occurs about 65% of the time. The Answer is loops Back Finger Prints - 400 • This is the triangular region near a loop. The Answer is delta Back Finger Prints - 500 • What is a fingerprint and how do they develop in the body? The Answer is Raised portions of the skin that are arranged in a specific pattern. They are caused by the basal layer of the epidermis growing faster than the surrounding layers of the dermis and epidermis resulting in a collapse and folding of the basal layer. Back Finger Prints (sorta) - 600 • This is the area of a nail responsible for nail growth. The Answer is nail matrix. Back Miscellaneous - 100 • This is another name for a sebaceous gland. The Answer is oil Back Miscellaneous - 200 • This protein is used in epidermis cells to make them tougher. The Answer is keratin Back Miscellaneous - 300 • This yellow-orange pigment is found in vegetable like carrots and a buildup of it can give skin an orange tint. The Answer is carotene Back Miscellaneous - 400 • Scale-like modification of the epidermis that has a free edge, body, and root. The Answer is nail Back Daily Double Miscellaneous - 500 • This is a touch sensor that is found in the dermis. The Answer is Meissner’s corpuscle Back Miscellaneous - 600 • What is a tattoo, what layer of the skin must the tattoo be placed, and name an issue that one must consider before getting a tattoo? The Answer is “a deposition of pigment within the dermis that has a high cost (especially to remove, it is permanent, risk of infection… Back The Almost Final Question • The final question has to deal with: »Skin Make your wager and hand it to the teacher Final Question • Name three functions of the skin and explain how it performs the function. • Mechanical Damage - It makes a physical barrier. Outer layers has cells that contain keratin, which toughens the cells and has pressure receptors, which alert the body of potential damage • Chemical Damage - Once again the keratinized cells block chemicals and pain receptors alert the body • Bacterial Damage - Block the bacteria, but also the skin’s secretion are acidic (inhibit growth) and skin cells have phagocytes (eat the bacteria) • Ultraviolet Radiation - Contains melanin that offers protection from UV damage • Thermal Damage - Contains hot, cold, and pain receptors that alert the body • Desiccation (Drying Out) - Contains waterproofing glycolipid and keratin • Aids in heat loss (activates sweat glands and allows blood to flow closer to surface) and heat retention (stops blood from rushing to surface) • Aids in excretion of urea and uric acid (makes up some of your sweat) • Synthesizes vitamin D (uses sunlight to convert some cholesterol molecules to vitamin D) Final Final Question • Why would it not be wise to only have hair as evidence if you were trying to prosecute a defendant in court? Answer • Hairs within a species can have similar qualities. Therefore, different people can have similar hairs. Also, hairs vary from hair to hair on the same person, so one can never definitively say if a hair came for a certain person; all that can be said is it is similar to the person’s hair.