Integumentary System. Carly Gau. The skin and its associated structures (i.e. hair, feathers, claws, hooves, and glands.) Skin is made up of two distinct layers – the EPIDERMIS and DERMIS And is connected to underlying structures by the HYPODERMIS (subcutaneous layer).
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The skin and its associated structures (i.e. hair, feathers, claws, hooves, and glands.)
– the EPIDERMIS and DERMIS
structures by the HYPODERMIS
(subcutaneous layer)What is the Integumentary system?
Function: protection, waterproofing, protect against microbes and UV light
5 layers make up the epidermis:
- Stratum Corneum (most outer)
- Stratum Lucidum
- Stratum Granulosum
- Stratum Spinosum
- Stratum Basale (most inner)The Epidermis
Function: support, temperature regulation and contains sensory receptors
Function: provides support and insulation
Watch a video demonstrating the layers of skin. Click here to follow the hyperlinkHypodermis
Hair: arrector pili muscle contracts -traps air in the hairforming an insulating layer
There are 6 main skin structures involved in thermoregulationSkin and Temperature Regulation
Nails & Hooves: modified claws which protects foot from friction and injury - horses
Horns: core of bone from skull covered in
Scales: as seen in reptiles
Claws: cats, tigers etc
Feathers: keratinised structures seen in
birdsSpecialised Keratinised Skin Structures