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Integumentary System
Page 2
17
Anatomy
11th Grade
10/03/2010

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Cards

Term
subcutaneous layer
Definition
  • aka hypodermis
  • located beneath the dermis
  • connects the dermis to the underlying tissue
  • rich in fat and areolar (connective) tissue
Term
skin color is controlled by...
Definition
  • genetics
  • melanin
  • tyrosinase
  • blood flow to skin
  • exposure to sunlight
Term
melanin
Definition
a brown pigment
Term
tyrosinase
Definition
an enzyme; albinism results from its absence
Term
desquarnation
Definition
the shedding of epithelial elements from the skin surface
Term
sensation
Definition
  • acts as a sense organ
  • pacinian corpuscle
  • messiner's corpuscle
Term
pacinian corpuscle
Definition
receptor that detects pressure
Term
messiner's corpuscle
Definition
receptor that detects light touch
Term
immunity
Definition
langerhans cells
Term
langerhans cells
Definition
play a role in immune response
Term
homeostasis of body temps
Definition
  • controlled by the hypothalamus in the brain
  • thermoregulatory
  • 80% of heat loss is through the skin
  • to help dissipate even more heat, sweat rpoduction increases to as high as 3L per hour during excercise
Term
80% of heat loss is through the skin
Definition
  • evaporation
  • radiation
  • conduction
  • convection
Term
functions of skin
Definition
  • protection
  • sensation
  • excretion
  • vitamin D production
  • immunity
  • homeostasis of body temp
Term
rule of palms
Definition
palm size of burn victim is about 1% of body surface
Term
first degree burn
Definition
minor pain, erythema (redness) and swelling
Term
second degree burn
Definition
severe pain, blisters form with swelling and edema
Term
third degree burn
Definition
  • aka full thickness burn
  • no immediate pain
  • temporary skin grafts - from cadavers and pig
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