define :- 1) Duct Glands 2)Ductless Glands 3)Sebascous Glands (plz check it's spelling)
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DUCTAL GLANDS : THESE GLANDS SECRETE THEIR PRODUCTS INTO DUCTS WHICH TAKES IT TO THE EXTERNAL ENVIRONMENT.FOR EXAMPLE SALIVARY GLAND , SWEAT GLAND.
DUCTLESS GLAND : THESE ARE THE GLANDS THAT SECRETE THEIR PRODUCT DIRECTLY INTO THE BLOOD STREAM.THEY ARE ALSO CALLED ENDOCRINE GLANDS.FOR EXAMPLE PITUITARY GLAND , THYROID.
SEBACEOUS GLAND : THE UPPER PART OF THE HAIR PROJECTS BEYOND THE SKIN AND IS KEPT WATERPROOF BY SEBUM , AN OILY SECRETION PRODUCED BY SEBACEOUS GLAND THAT ENTERS INTO THE HAIR FOLLICLE.SEBUM CONTAIN SUBSTANCES THAT SPREAD ALONG THE HAIR AND ON TO THE SKIN WHERE IT KEEPS THE FOLLICLE DUST FREE.
DUCTLESS GLAND : THESE ARE THE GLANDS THAT SECRETE THEIR PRODUCT DIRECTLY INTO THE BLOOD STREAM.THEY ARE ALSO CALLED ENDOCRINE GLANDS.FOR EXAMPLE PITUITARY GLAND , THYROID.
SEBACEOUS GLAND : THE UPPER PART OF THE HAIR PROJECTS BEYOND THE SKIN AND IS KEPT WATERPROOF BY SEBUM , AN OILY SECRETION PRODUCED BY SEBACEOUS GLAND THAT ENTERS INTO THE HAIR FOLLICLE.SEBUM CONTAIN SUBSTANCES THAT SPREAD ALONG THE HAIR AND ON TO THE SKIN WHERE IT KEEPS THE FOLLICLE DUST FREE.
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