PP 1 Human Alimentary Canal/ Mechanical Digestion. Plus –Definitions for All of Digestion. Definitions. Ingestion – taking in substances (food [eating] / drinking) into the body through the mouth.
Plus –Definitions for All of Digestion
Assimilation – movement of digested food molecules into the cells of the body where they are used – becoming part of cell.
Egestion – Passing out of food that has not been digested as faeces through anus
Alimentary canal = long tube that starts at the mouth and ends at the anus – the way food
travels through the system.
Nasal Cavity ends at the anus – the way food
Small intestine =
Large Intestine =
Colon -> Rectum
Abdomen = the area below
Ribs and above Hip bone
Swallow -> circular muscle relaxes (tube gets wider) -> behind food circular muscle contracts .
When circular muscle relaxes – longitudinal muscle contracts (visa versa)