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The Skin
Term | Definition |
---|---|
Epidermis | outside layer made up of flat dead cells that wear away and are replaced from underneath. |
Malpighian layer | bottom layer of epidermis, contains the pigment melanin. |
Melanin | pigment which determines skin colour and helps to protect the skin from UV rays |
Dermis | inside layer of skin |
Blood vessels | control body temperature and supply oxygen and nutrients to skin cells |
Nerves | allow skin to feel sensations e.g heat |
Sweat glands | remove waste and excess water from the blood it is released through the pores to the surface of the skin |
Oil glands/ Sebaceous glands | produce sebum to keep skin soft and the hair in good condition. |
Adipose tissue | layer of fat cells located underneath the dermis which insulates the body and acts as an energy reserve |