👉 Pronoids are a group of small, short, and highly specialized structures found in the digestive system of many animals, particularly in vertebrates. These structures include the palatine tonsils (also known as the parotid glands), which are responsible for producing saliva to help break down food into its smallest components. Pronoids also have a role in the digestion of proteins, where they play a crucial function in breaking down large molecules like proteins into smaller peptides and amino acids.