How to Brush Place your toothbrush next to the teeth so that it rests on the gums forming a 45-degree angle against the gums. Move the toothbrush from the gums towards the edge of teeth to move the dental plaque away from the gum line. After brushing, one by one tooth, all the outer teeth surfaces do the same for the inner surfaces. Brush the chewing surfaces of the teeth with horizontal moves.
They take up the absorbed food and transport them away 4. Each villus contains a dense network of blood capillaries This allows the food to cross the membrane rapidly 3. The wall of villi is thin (one-cell thick) These villi can increase the total surface area for absorption 2. Its inner surface is covered with numerous finger-like projections called villi Food can stay long enough for absorption to occur 1. It is very long (6 m) Adaptation Feature
the process by which absorbed food molecules in the blood are transported to cells for the use of growth, tissue repair and other metabolic activities. The actual destiny of each food molecule depends not only on its type but also on the body requirements at that time (e.g. use immediately or put into storage)
Faeces – semi-solid, greenish brown mass containing undigested and unabsorbed food substances. Also contains bile pigment (hence the color of faeces), dead RBC, cells from intestinal wall, bacteria, etc.
Temporarily stored in rectum
Anal sphincter – relaxes to allow a person to defaecate