i) Stomach is thick muscular organ.
ii) Its inner surface has gastric glands which secret a juice called gastric
juice.
iii) Human stomach secret about 1-2 liter juice daily.
iv) Gastric juice has HCl and two enzymes rennin and pepsin.
v) HCl kill the bacteria present in food.
vi) Pepsin acts on protein and break down them into peptones.
vii) Renin helps to curdle milk in infants.
viii) Regular movement of stomach churn up the food with gastric juice and
changed it into thick liquid called chyme.
ix) Then this chyme is pushed to small intestine.