Anatomy and physiology of the dermis

Whitespace lecture capture detailing the parts of the dermis as well as the accessory organs.

[@katejessep13]

Doesn't the arrector pili a muscle pull the root of the hair and make it stand on end (goosebumps) to keep the heat in and provide better insulation for the human body?? How doe the arrector pili muscle have no real function in a human body???

[@ProfKnoppy]

Kate,Thanks for posting. The arrector pili muscle does pull on the hair and make them stand on end. The problem is that humans don't have enough hair to create a layer of air (as furry animals do), to create a working, insulating, heat conserving boundary. Hope this helps.

[@katejessep13]

aaaaah I see (:

[@degaboiproductions]

Another great video! Thank you!!