Cholecystitis refers to inflammation of which organ?

If for some reason our goblet cells are non-functional,this will adversely affect

Pernicious anemia is caused by the deficiency of which vitamin?

List the organs of the human alimentary canal and name the major digestive glands with their location.

The hardest substance present in the human body is:

$A-$ The human digestive system consists of the alimentary canal and the associated glands.
$R -$ Liver,pancreas,and salivary glands are associated digestive glands.