A)State the role of saliva in human beings b) State 2 hormones involved in digestion

A) The digestive functions of saliva include moistening food, and helping to create a food bolus, so it can be swallowed easily.

B) The five major hormones are: gastrin ( stomach ),                                                          secretin ( small intestine ), cholecytokinin (small intestine), gastric inhibitory peptide (small intestine), and motilin (small intestine).

Explanation:

Explanation of answer A):

Saliva contains the enzyme amylase that breaks some starches down into maltose and dextrin. Thus, digestion of food occurs within the mouth, even before food reaches the stomach.