Integumentary System

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Author:
alyssau12
ID:
283783
Filename:
Integumentary System
Updated:
2014-09-23 08:12:31
Tags:
ANSC
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Description:
quiz 2 and test 2 info
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  1. function of skin:
    • protects from outside environment
    • regulates body temperature
    • supports connective tissue
  2. anatomy of skin:
    • epidermis
    • dermis
    • hypodermis
  3. epidermis cells:
    • stratified squamous epithelium
    • avascular and aneural
  4. coreneum:
    dead cells
  5. thickness of epidermis:
    varies depending on location
  6. anatomy of epidermis:
    • corneum
    • lucidum
    • granulosum
    • spinosum
    • basale
  7. melanocytes:
    pigment cells located in basale layer of epidermis
  8. melanin:
    • causes expression of different colors in skin and hair
    • can be influenced by pituitary hormones
  9. dermis:
    • underlying connective tissue to epidermis
    • aka corium
    • vascular and neural properties
  10. projectiles in the dermis:
    dermal papillae
  11. hypodermis:
    • subcutaneous tissue
    • vascular and neural
    • contains fat
  12. type of cells in hypodermis:
    areolar connective tissue
  13. function of hypodermis:
    allows for movement
  14. adnexa classes of skin:
    • hair
    • glands
  15. hair:
    • identifying characteristic in animals
    • abundant except for in swine
  16. 3 types of hairs:
    • guard hairs (outer)
    • wool hairs (under)
    • tactile hairs (specialized for touch)
  17. hair follicle:
    modification in epidermis that houses individual hairs
  18. function of glands:
    oil secretions
  19. what muscle aids in secretion?
    arrector pilli muscle
  20. types of modified epidermis:
    • horns
    • hoof
    • dewclaw
    • chestnuts
    • ergots
  21. classes of integumentary system:
    • skin
    • adnexal structures
    • modified epidermis
  22. What part of hair gives hair pigment?
    cortex

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