Ethno-botanical study deals with the utilisation of plants and plant products by ethnic races. A scientific study of such plants has been made by BSI.
A number of ethno-botanical explorations have been conducted in different tribal areas. More thn 800 plant species of ethno- botanical have been collected and identified at different centres.
About 1336 plant species are considered vulnerable and endangered. BSI's inventory of endangered plants is titled as Red Data Book.
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Sunday, April 7, 2013
Human Glands
Glands are organs of the human body that manufacture some liquid products which are secreted from the cells. There are two types of glands:
(1) Ducted Glands: They secrete their products through well defined ducts
e.g., liver- secretes bile in the stomach ; Lachrymal- tears in the eyes; salivary - saliva in the mouth ; Sweat glands in the skin - secrete
sweat.
(2) Ductless glands: Also called endocrine glands or internally secreting glands. They secrete hormones directly into the blood stream in response to brain's instructions.
(1) Ducted Glands: They secrete their products through well defined ducts
e.g., liver- secretes bile in the stomach ; Lachrymal- tears in the eyes; salivary - saliva in the mouth ; Sweat glands in the skin - secrete
sweat.
(2) Ductless glands: Also called endocrine glands or internally secreting glands. They secrete hormones directly into the blood stream in response to brain's instructions.
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