1. The Integumentary System

2. The Integumentary System
Why purpose(s) does this system serve?
*Preventing septicemia…
*Preventing tetanic paralysis…
*Preventing cancer…
15% of adult human body weight

3. The Integumentary System
Why purpose(s) does this system serve?
*Preventing dehydration…
*Preventing heat stroke and hypothermia…
*Preventing failure to thrive…

4. The Integumentary System
Why purpose(s) does this system serve?
*Preventing lonely Friday nights…
*Preventing gustatory delights…
*Preventing ataxis…

5. Where does the skin come from?* * * *

6. The Dermis What are the most abundant fibers? How are they arranged?
Comprised of …
___________ and _______
What are the most abundant fibers?
How are they arranged?

7. What are plies, warps and weaves?

8. The Dermis Connective tissue layer… Bony and otherwise:
Dermis of vertebrates has a predisposition to...
_______________deposited on/around fibrous scaffolding of the dermis (dermal in origin)
Generally consists of …
Examples of tetrapods with dermal bone?!?

9. The Dermis Dermal pigments: Most organisms have pigmented integument
Responsible cells found in …
Pigment bearing cells/structures categorized based on color… * * * *

10. The Dermis Dermal pigments:
Chromatophores can regulate dispersion of pigments altering color

11. The Dermis Dermal pigments: So how do you explain this?

12. The Epidermis General features of the epidermis: * Comprised of …
* _______________ layer between environment and other tissues.
* 2 types non-living coatings… 1) 2)
* Glandular…
____________ in aquatics
____________ in terrestrials

13. The Epidermis Epidermis of aquatic organisms:
Fishes… Most glands single celled (___________________________).
Some multicellular glands (_______________________)
Can be protective (_______________)

14. The Epidermis Epidermis of aquatic organisms: Aquatic amphibians…
Land going amphibians have …
Can make sticky mucus for…
Mucous glands can hypertrophy to form…

15. The Epidermis Epidermis of aquatic organisms:
Some deep sea teleosts have __________________
Epidermal origin “housed” in the ____________ -
© Theodore W. Pietsch