i would like to know the very detailed anatomy of human figure in every pose.

In my opinion, for drawing, to search every pose anatomy does not help us.
Better, understand the shapes, forms, joint etc.
For anatomy study, there are many good books. Here some of them, which I go through.
‘Vilppu’s drawing manual’ is one of the best.
here is the link:
http://www.vilppustudio.com/
http://www.vilppustore.com/?gclid=CP6s6OGlvo4CFQJOTAod3V2tyQ
http://www.vilppustore.com/manuals.htm
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And Andrew Loomis’s books.
here is the link:
http://www.oklahoma.net/~silvrdal/loomis2.html
http://acid.noobgrinder.com/Loomis/
http://www.flickr.com/photos/leifpeng/sets/1606857/
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Here are some good sites.

http://fineart.sk/
http://www.female-anatomy-for-artist.com/
http://drawsketch.about.com/od/humananatomy/Human_Anatomy_for_Artists.htm
http://www.wetcanvas.com/ArtSchool/Drawing/Anatomy/index.html
http://www.anat.ucl.ac.uk/extpages/anatart/anatart.pdf
http://www.computerarts.co.uk/tutorials/3d__and__animation/anatomy_for_3d_artists
http://www.3d.sk/
http://www.human-anatomy-for-artist.com/

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and, for books,pls see this..

http://store.doverpublications.com/0486436411.html
http://www.bestwebbuys.com/Human_Anatomy_for_Artists-ISBN_9783829005739.html?isrc=b-search
http://www.marshallart.com/seminars/resources/human/index.html
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and I'll definitely inform you,If I got another good one.