Friday, August 27, 2010

Human System: Digestive System

Digestion is the mechanical and chemical breaking down of food into smaller components that can be absorbed into a blood stream. Digestion is a form of catabolism: a break-down of larger food molecules to smaller ones.

2 comments:

  1. Now,I know how my Digestive System works!Thanks a lot!

    ReplyDelete
  2. Dear Mr Pang,

    Thank you for posting up so many videos. I very

    glad that I know there is five systems in our body. I want to know about nervous system Please!

    Irene Lee Wei Ling

    ReplyDelete