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Nutrient in Humans, Effects of alcohol consumption, Includes, The process…

- - - - Small intestine
        
        Large Intestine
        
        Anus
        
        undigested/unabsorbed food particles will be passed out as faeces
        
        Rectum
        
        undigested/unabsorbed food particles will be temporarily stored in the rectum
        
        Colon
        
        Consist of
        
        Absorb water from undigested/unabsorbed food particles
        
        jejunum
        
        ileum
        
        Duodenum
        
        Pancreas
        
        Secrete Pancreatic juice
        
        Pancreatic amylase
        
        pancreatic lipase
        
        trypsin
        
        Gall bladder
        
        secretes bile
        
        emulsies larger fat droplets to smaller fat droplets to increase SA:V for lipase to act on for quicker digestion of fats
        
        Intestine
        
        Secrete intestinal juice
        
        Maltase
        
        Peptidases
        
        Lipase
        
        Have thin walls->allows food molecules to diffuse with a shorter distance
        
        Circular folds
        
        Increases S.A:V ,faster absoprtion
        
        Villi(finger-like projections)
        
        Consist of microvilli
        
        Consist of blood capillaries
        
        Have alot to transport more absorbed nutrients to the liver
        
        Via hepatic portal vein
        
        1 more item...
        
        Transport sugars and amino acids
        
        Lacteral
        
        Transport glycerol and fatty acids(form to become globules)
        
        2 more items...
      - Paristalsis in the stomach walls
        
        Help to churn and mix food with gastric juice
        
        Help to break down larger food molecules to smaller food molecules
        
        The partially digested food will remain in the stomach and become liquified
        
        chyme
        
        small amounts will enter the duedenum
      - a distensible muscular bag with elastic,well developed muscular walls
        
        Form deep pits which leads to
        
        Gastric glands
        
        Gastric juice
        
        Mucus
        
        To protect stomach walls(prevents the cell for digesting itself)
        
        Pepsinogen(inactive form )
        
        Hydrochloric Acid
        
        Provides a Acidic medium for the action of pepsin(optimum pH)
        
        1 more item...
    - - Aka antagonistic muscles
        
        Peristalsis helps to push food from the mouth to the stomach
        
        Peristalsis is the rhythmic,wave-like contractions in the walls of the AlimentaryCanal
  - - - Increase S.A:V for salivary amylase to act on
  - - - Mucus
        
        Help to soften food
      - Salivary Amylase(pH 7)
        
        Help to digest Starch->Maltose
  - - - To prevent food from going to the layrnx,a flap like tissue called the epiglottis covers the glottis when swallowing
        
        When swallowing,the larynx is raised and the glottis is closed as it is covered by the epiglottis which moves downwards
        
        When breathing,the larynx is lowered,the glottis is opened