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Chapter 9 Digestive System - Coggle Diagram
Chapter 9
Digestive System
Digestive System =
Alimentary Canal + Accessory Organs
Alimentary Canal
mouth to anus
Stomach
Small intestine
Esophagus
Large intestine
Recum
Anus
Tongue
Accessory
Organs
Teeth & Tongue
Liver & Gallbladder
Salivary glands & Pancreas
Function
Propulsion - 24 - 36 hours
Digestion - breakdown into nutrients
Mechanical (chewing) & Chemical
Secretion - lubricate, liquefy and digest
Absorption - out of digestrive tract into
blood & lymph for transportation
Elimination - removal of undigested food (waste)
Mouth
Papillae -- 4000 taste buds
live 7 - 10 days
Teeth - normal adult has 32 teeth
made of dentine and enamel
Salivary glands - secret saliva via 2 parotid glands,
2 submandibular glands + 2 sublingual glands
Disorders
Periodontal / pyorrhea (pus discharge)
Stomatitis -- ulcers, cold sores, herepes simplex I, thush
oral cancer
Halitosis
Esophogus
Disorders
Dys phagia
Hematemesis
Varix (Varices)
GERD / Reflux
Transfers food to stomach
Stomach
Lining secretions
Mucus
Hydrochloric acid
Enzymes (Pepsin)
Intrinsic factor (B12)
Gastrin (encourages
peristalitic contractions)
Peristaltic contractions
push food to intestines