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Epidermis, Group 3: Racquael, Tena, Priya, and Trang - Coggle Diagram

- - - - Melanocytes
        
        Producing the protein melanin which make pigment for hair, skin and retinas
        
        The melanin is transferred into the keratinocytes via a cellular vesicle called a melanosome
      - Keratinocytes
        
        An intracellular fibrous protein that gives hair, nails, and skin their hardness and water-resistant properties
        
        Manufacturing and storing the protein keratin
- - - - Blood vessels (capillaries): These loops extend up into the superficial part of the dermal papillae, where oxygen and nutrients diffuse in dermis and epidermis.
    - - Collagen: soluble protein that holds dermis together
      - Fibroblasts: extracellular matrix that creates collagen
      - Eccrine gland: directly secretes the fluid through the duct onto the skin surface
      - Aprocrine gland: connected to the hair follicle and it secretes substances indirectly to the follicle
      - Adipose tissue: loose connective tissue composed of adipocytes. Its main role is to store energy in the form of fat, although it also cushions and insulates the body.
  - - - Arrector pili muscle: Small band of smooth muscle cells that cause a hair to stand up when contracted. These muscles also attach to dermal papillary layer on other end.