What is Skin

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What is Skin
2010-10-03 20:53:25

To help you learn about the skin
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  1. What are papillae
    Finger like projections (ridges) from the superion (upper) dermal region. These ridges form lines or striations on the palms of hands and soles of feet, the pattern of these ridges is unique to each individual-a.k.a. Fingerprints and footprints
  2. What are the proper names for the sweat glands and the oil glands?
    • Sweat Gland- Sudoriferous glands
    • oil glands- sebaceous gland
  3. what happens to body temperature when blood vessels dialate?
    Bloos vessels dialate (get larger), so the ecxess heat from the blood can escape through the skin
  4. what happens to body temperature when blood vessels constrict?
    blood vessels constrict (get smaller), so the heat is retained in the body
  5. what is erythema?
    a reddish color of the skin- usually caused by burns or conjestion of blood in the vessles
  6. What is cyanosis
    a bluish discoloration of the skin- caused by insufficient oxygen. can be associated with the heats, lung, and circulatory diseases of disorders
  7. what is jaundice
    a yellowish discoloration of the skin- indicate bile in the blood as a result of liver or gallbladder disease. can also occure in conjunction with certain diseases that involve the distruction of red blood cells
  8. Define Macules
    a flat discolored lesion that is less than 1 cm in diameter
  9. Define papules
    a small solid raised lesion that is less than 0.5 cm in diameter
  10. Define Vesicles
    a circumscribed elevation of skin containing fluid that is less that 0.5 cm in diameter
  11. Define pustules
    a small cirsumscribed elevation of the skin containing pus
  12. Define crusts
    a collection of dried serium and cellular debris
  13. Define wheals
    a smooth, slightly elevated swollen area that is redder or paler than the surrounding skin. it is usually accompanied by itching
  14. Define ulcers
    a open sore or erosion that is skin or mucuous membrane resulting in tissue loss
  15. What is Impetigo
    A contagious skin infection caused by staphylococcal or streptococcal bacteria and seen most commonly in children. Impetigo is characterized by superficial pustules that rupture and form thick yellow crusts, usually on the face.
  16. What is verrucae
    A wart
  17. What is dermatitis
    inflammation of the skin; skin becomes itchy and may develop blisters
  18. What is Acne Vulgaris
    the most common form of acne; usually affects people from puberty to young adulthood

    acne - an inflammatory disease involving the sebaceous glands of the skin; characterized by papules or pustules or comedones
  19. What is Athlete's foot
    A contagious fungal skin infection caused by a species of Trichophyton or Epidermophyton that usually affects the feet, especially the skin between the toes, and is characterized by itching, blisters, cracking, and scaling; ringworm of the foot. Also called tinea pedis.
  20. what is psoriasis
    A chronic, inflammatory skin disease in which recurring reddish patches, often covered with silvery scales, appear especially on the knees, elbow, scalp and trunk. Psoriasis is noncontagious and is inheritable.
  21. What is Ringworm?
    Any of a number of contagious skin diseases caused by several related fungi, characterized by ring-shaped, scaly, itching patches on the skin and generally classified by its location on the body. Also called tinea.
  22. How many components of sweat are there and what are they?
    • 3
    • Water
    • salt
    • body waste
  23. What are the functions of the integumentary system?
    • Protection
    • maintenance of body temperature
    • excretion
    • perception of stimuli
    • Immunity
    • Synthesis of Vitamin D
    • Storage
    • Absorption