Digestion

Question 1

pancreas

Answer 1

• produces amylase (carb digestion), trypsin (protein digestion), and lipase (fat digestion)
• secretes bicarbonate-rich juice that neutralizes acidic chyme from stomach

Question 2

liver

Answer 2

produces bile which emulsifies fats

Question 3

gall bladder

Answer 3

stores bile

Question 4

large intestine

Answer 4

• absorption of salts and water

- rectum provides for storage of feces

Question 5

small intestine

Answer 5

• chemical digestion is completed
• most digestion in small intestine occurs in duodenum
• secretes lipases (fat digestion), aminopeptidases (protein digestion), and disaccharidases (maltose, lactose, and sucrose digestion)
• highly adapted to absorption due to villi

Question 6

stomach

Answer 6

• secrete pepsin and HCl

- churning of stomach produces an acidic chyme which passes into duodenum through the pyloric sphincter

Question 7

esophagus

Answer 7

• muscular tube leading from mouth to stomach

- rhythmic waves of involuntary smooth muscle contraction move bolus down (peristalsis)

Question 8

oral cavity

Answer 8

• mechanical and chemical digestion begins
• breakdown of food by chewing (mastication)
• saliva lubricates food and secretes salivary amylase which breaks down starch (carbs)