THE DIGESTIVE SYSTEM THE DIGESTIVE SYSTEM Digestion Mechanical

THE DIGESTIVE SYSTEM

THE DIGESTIVE SYSTEM Digestion: • Mechanical and chemical _____ breakdown of food

FUNCTIONS 1. Ingestion Secretion 2. ______ 3. Mixing Digestion 4. ______ 5. Absorption Defecation 6. ______

PERISTALSIS HTTPS: //WWW. YOUTUBE. COM/WATCH? V=IGA-QKQSASY HTTPS: //WWW. YOUTUBE. COM/WATCH? V=UJR 0 UABYPS 4 • Moves food through digestive _______ tract • Mixes food

ACCESSORY ORGANS Mouth • _____ Salivary • _____ glands • Teeth

TYPE OF TEETH Incisors Cuspid (canine) Bicuspids Molars Premolars

SALIVARY GLANDS • Release saliva • Breakdown food • All three are located in the mouth

TABLE TALK Why does the use of meth lead to tooth decay?

ESOPHAGUS Upper sphincter • Moves food from pharynx to esophagus Lower sphincter • Moves from esophagus to stomach ***Two different types of muscles

THE STOMACH Gastric Pits • contain glands to make juices Rugae • Folds in the stomach • Move food during digestion • Allow stomach to stretch Pyloric sphincter • Moves food from stomach into duodenum (intestine)

STOMACH LINING Contains: Gastric Juices • Acids that breakdown food Mucus • Prevents stomach from digesting itself

DIGESTIVE SYSTEM VIDEOS The inside scoop on your insides https: //www. nytimes. com/video/science/100000002150656/ruminatingwith-mary-roach. html Dr. John https: //www. youtube. com/watch? v=Uq. Sf. ZGc 1 RQw Kids Health https: //www. youtube. com/watch? v=Vwrs. L-l. CZYo Crash Course https: //www. youtube. com/watch? v=y. Io. TRGfc. Mq. M

CHYME • Made up of food and gastric juices

PANCREAS • Secretes insulin • Secretes various enzymes break down different things

LIVER FUNCTIONS 1. Metabolizes bilirubin 2. Excretes ____ Removes toxins 3. _____ 4. Produces _______ bile

STRUCTURE OF THE LIVER Hepatocyte Bile canaliculi

KUPFFER (CUP-FUR) CELLS • Destroy foreign _______ matter

GALLBLADDER • Stores bile • Bile digests fat

TABLE TALK • Which type of liver cell would be considered a phagocyte?

GALLSTONES • Crystallizedbile ______ Prevent the flow of • _______ bile

SMALL INTESTINE • All about ABSORTION Sections: • Duodenum (do-WAD-num) • Jejenum (je-JOO-num) • Ileum (ill-E-yum) **Each absorbs absorb different things using villi

LARGE INTESTINE • All about WATER REABSORPTION • Secretes mucus • The mucus contains bacteria to aid in digestion (intestinal flora)

TABLE TALK • Where are the cells that absorb dietary nutrients located?

DEFECATION • Removal of undigestedfood _____

Types 1– 2 indicate constipation, with 3 and 4 being the ideal stools (especially the latter), as they are easy to defecate while not containing any excess liquid, and 5, 6 and 7 tending towards diarrhoea.

DIGESTIVE SYSTEM ANALOGY • Use 10 different organs from the digestive system and create analogies • You can use either a house or a city to compare your digestive organs to • You must include a picture of the item/thing your are comparing each organ to