[<< wikibooks] Blender 3D: Noob to Pro/Human Body
This tutorial should cover the modelling, skinning and animation of human body, plus facial expressions.
There are some tools to generate human body from parameters like:

makehuman free software program (gpl). The models generated are under MIT license. The models generated can be easily imported in blender.Use lightwave(obj) export. The exported file is located at ...\Documents\makehuman

Delete the original cube first. The human object is smaller than the standard cube. Use the UVImage editor to see the UV mapping but it actually uses a texture stored in the image file texture.png

facegen proprietary program. Used for The Elder Scrolls IV: Oblivion.links to anatomy sites :

fineart
Body proportions
tutorials:
Blender 3D: Tutorial Links List