SCIENCE

• The Main nutrients the body needs are

  CARBOHYDRATES

  PROTEINS

  FATS

  VITAMINS & MINERALS
• This is made of a group of organs all working together

  DIGESTIVE SYSTEM
• This is also called GI tract or digestive tract and the liver, pancreas, and gallbladder are all part of the digestive system

  GASTROINTESTINAL TRACT
• This is one long tube with an opening at each end, stretched out it is a 9m tube

  Digestive system
• the process of digestion are

  INGESTION

  DIGESTION

  ABSORPTION

  ASSIMILATION

  DEFECATION

  EXCRETION
• This is the process of taking in food into the digestive tract or GI tract.

  INGESTION
• A gland in the mouth that produces saliva

  SALIVARY GLANDS
• This is mechanical and chemical breakdown of food into small organic fragments

  DIGESTION
• This is after breaking complex food substances into smaller soluble food substances, it moves down into the small intestine

  ABSORPTION
• This is the process where in the digested food absorbed by the walls of the intestine

  ASSIMILATION
• This is the process that involves the removal of undigested food products from the body

  DEFECATION/EGESTION
• This involves the removal of wastes from the cell of organism

  EXCRETION
• It serves as the entrance to the digestive, it is the site of ingestion

  MOUTH/ORAL CAVITY
• This are the responsible for mastication, the process of crushing and grinding food

  TEETH
• A long muscular structure that perceives taste, it has rough surfaces called papillae

  Tongue
• A digestive enzyme that helps in the initial digestion of starch

  SALIVARY AMYLASE
• This is a muscular tube that serves as a passageway for food and air, this leads to the esophagus

  Pharynx
• Running from the base of the pharynx through the whole length of the neck and won to the stomach is a 25cm long tube

  Esophagus
• This is J-shaped, 20cm long, expandable organ that receives food from the esophagus

  Stomach
• The chyme from the stomach moves down to the ____ where final stages of digestion and partially absorption takes place

  Small intestine
• A smooth muscles that create

  wavelike muscular contractions

  PERISTALSIS
• A semifluid mass of partially digested food that is mix with gastric juices

  Chyme
• These enzymes break down proteins, fat, and carbohydrates from the food we eat

  Pancreas
• An organ that produce bile

  Liver
• This is a pear-shaped reservoir that sits just under the liver and stores bile.

  Gallbladder
• absorbs water and changes the waste from a liquid into the stool. It normally

  takes about 36 hours for stool to get through the colon

  Large intestine
• The rectum’s job is to receive stool from the colon, to let you know there is stool to be egested, and to hold the stool until egestion happen

  Rectum
• The anus is the last part of the digestive tract. This is the external opening of the rectum, through which feces are expelled

  Anus
• They are rich in carbohydrates and provides the energy you need to perform daily activities

  Go Foods
• They are rich in protein which are needed for growth and development

  Grow foods
• This include fruits and green leafy vegetables

  Glow foods
• ___are main source of energy, they are found in many foods we love such as bread, pasta, cereal and fruits

  Carbohydrates
• ___ are like the building blocks of our body, they help us grow, develop and stay strong

  Proteins
• They speed up chemical reactions and regulate the release of energy in the body

  Vitamins and Minerals
• These are the energy reserves of the body. They give twice as much energy as carbohydrates and proteins

  Lipids
• This is vital to all the physiological and chemical processes that release energy in the cell

  Water
• DIGESTIVE SYSTEM DISEASE AND DISORDER

  
• DESCRIPTION, CAUSE, PREVENTION

  
• DESCRIPTION, CAUSE, PREVENTION

  
• DESCRIPTION, CAUSE, PREVENTION