The skin Adnexa_gland



The skin Adnexa
Hair
Nail
Sweat gland
Eccrine sweat gland
Skin has 250 millions of Eccrine sweat glands and can excrete sweat directly out of skin. The distributions almost are near palms, soles, underarms, and forehead. The excretion will be adjusted by emotion and temperature.
The excretion will start at dermis and open at epidermis.
Apocrine sweet gland
It is larger than eccrine sweat gland and from dermis.
It locates at the underarm, areola and nipples of the breast, ear canal, eyelids, wings of the nostril, perianal region, and some parts of the external genitalia.
The smell of the odor is the interspecific relationships of microorganisms when sweats excrete to the epidermis.

sebaceous gland
They locate at the face and scalp, but also on all parts of the skin except the palms and soles.

They will excrete lipids with cell divisions.

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