I know this might sound weird but i have found some really good u tube videos call anatomy for beginners it is on dead bodies but it is very in depth of system and functions

http://www.youtube.com/watch?v=GJdWbf6XXx4
http://www.youtube.com/watch?v=-9rwXXI6ZQI&feature=relmfuhttp://www.youtube.com/watch?v=kylDVP6bEeY&feature=relmfu
http://www.youtube.com/watch?v=4-y9KSX-Ybo&feature=relmfu
here are a few of the links
hope you guys get some help from this

i have exactly the same problems between the kids life its self and trying to get some study or even the work i have to get done is a bit impossible so good to read some of these ideas thanks Tanyah for asking the question and know your not alone