GLANDS
Glands
are groups of epithelial cells that produce specialised secretions.
Glands that
discharge their secretion onto the epithelial surface of hollow organs,either
directly or through a duct,are called EXOCRINE GLANDS.
Secretions
of exocrine glands include mucus,saliva,digestive juices and earwax.
Exocrine
glands vary considerably in size,shape and complexity.
Other glands
discharge their secretions into blood and lymph,these are called ENDOCRINE
GLANDS (Ductless gland) and their secretions are hormones.
Functions
1.keeps
a surface moist.
2.
provides lubricant for frictional surfaces.
3.
enzymes for digestion
4.
hormones for control and regulation of body functions
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