Hair, Nails,

1
Hair, Nails, Burns

• Mrs. Halkuff
• Anatomy Physiology

2
Hair Structure

• Hair Bulb
• Root
• Medulla inner central core
• Cortex surrounds medulla
• Shaft projects from the skin
• Cuticle outermost layer covers cortex)
• Arrector Pili Muscle that is attached to hair
  follicle (goosebumps)

3
Hair Types

• Wavy Hair Hair shaft is OVAL
• Curly/Kinky Hair Hair shaft is FLAT or
  RIBBON-LIKE
• Straight Hair Hair shaft is perfectly ROUND

4
Nail Structure

• Free Edge
• Nail Plate (top)
• Nail Bed (underside)
• Lunula
• Nail Fold (Cuticle)
• Nail Matrix

5
Skin Infections

• Athletes Foot Fungus infection on the feet.
• Boils Inflammation of hair follicles
• Cold Sores Fluid-filled blisters usually around
  the nose or mouth.

6

• Contact Dermatitis Itching redness, swelling
  due to an allergy.
• Impetigo Pink, water-filled lesions around
  mouth nose.
• Psoriasis Reddened epidermal lesions covered
  with dry silvery scales

7
Burns

• Rule of Nines Divides the body into 11 areas
  each accounting for 9 of total body surface.
• Head 9
• Chest and abdomen 18
• Upper/mid/low back and buttocks 18
• Each arm 9
• Groin 1
• Each leg 18
• As an example, if both legs (18 x 2 36), the
  groin (1), and the chest and abdomen (18) were
  burned, this would involve 55 of the body.

8
Burns

• Burns are serious because victims lose fluids and
  this affects all body systems.
• Skin is sterile for 24 hours after a severe burn,
  but after that bacteria and fungi begin to invade.

9
1st Degree Burns

• Only the epidermis is damaged
• Area is red swollen
• Usually heals within 2-3 days
• Ex. Sun burns

10
2nd Degree Burn

• Involves injury to the epidermis upper dermis
  region
• Skin is red with painful blisters
• Regeneration of the epithelium can occur
• Usually no permanent damage

11
3rd Degree Burn

• Destroys the entire thickness of skin
• Burned area appears blanched (gray/white)
• Not painful b/c nerve endings are destroyed
• Regeneration is not possible (skin graphing)