Moistening saliva fed into the mouth from nearby glands starts the process of chemical digestion using specialized proteins called enzymes. Secreted at various points along the digestive tract ...

"Tomalley, the digestive gland of a lobster, turns green when cooked,” says Brady. Some may refer to it as a lobster paste.

In this Pavlovian picture, the nervous system controlled and coordinated the output of digestive glands, which also responded to different foodstuffs with specific secretions. Appetite had a ...

The digestive tract also secretes various chemicals, enzymes, and hormones to assist with digestion and nutrient use. The process of digestion initially begins in the mouth when the teeth begin to ...

In heart urchins, like Echinocardium shown below, there is an additional caecum (ca) that contains digestive glands. For a detailed description of digestion and the digestive system in echinoids, see ...

Action of glands is inhibited - decrease in production of secretions Parasympathetic (rest and digest) Action of glands is stimulated - increase in production of secretions ...