Unit 2

• What is the job of Glands?

  • Glands secrete bodifly fluids (saliva) to digest enzymes
• What is the job of Amylase and Lipase?

  Amylase (break down starch) and lipase (break down fats) - 2 major enzymes
• What is the job of teeth?

  mechanical digestion; (physical breakdown of food)
• What is the job of the toungue?


  mechanical digestion and taste sensory organ
• Name the parts of the salivary glands

  • Secrete saliva (mixture of enzymes and mucus)
  • Parotid glands are salivary glands that sit infront of the ears
  • Submandibular glands: located under the jaw
  • Sublingual glands :under tongue 
• What is Epiglottis?

  A structure that closes over trachea during swallowing to prevent food and liquid from entering respiratory system
• What is the Esophagus?


  Muscular tube connecting pharnyx (throat) to the stomach
• What function occurs in the Esophagus?

  Peristalsis: rhythmic contraction of circular muscles that moves food through a tube 
• What is the livers function?


  • Secretes ball to gallbladder
  • Bile neutalizes Ph levels and emulsifies lipids 
  • Emulsification is the process where large fat droplets are broke down into smaller ones inorder to maximize the SA
• Gallbadders function?


  Storage organthat releases bile from the liver into the duodenum
• How does Bile travel?

  Through the common bile duct which is a tube that connects gallbladder and duodenum to deliver bile
• Name the functions of the pancreas


  • Organ that secretes enzymes to duodenum
  • Controls blood sugar concentration
• What are the functions of the small intestine?

  (duodenim,jujenum and ilum)

  Chemical digestion occurs in duodenum

  Absorption of nutrients occur in the jejunum and ilum by vili
• What are the functions of the large intestine and what does it include?

  Between small intestine and anus

  • Cecum, colon, rectum
  • Stores feces in rectum
• Hown does the Anus Control the elimination of waste?


  Sphincter Muscles