There is only one body cavity known as the gastrovascular cavity. The polyps are connected by epidermis which surrounds a gastrovascular cavity. Food is then digested by digestive enzymes in the gastrovascular cavity. The pharynx connects the mouth to the gastrovascular cavity. The digestive system consists of a mouth, pharynx, and a gastrovascular cavity. These tentacles are surrounded by a spacious cavity called the gastrovascular cavity or coelenteron. The interior of the bell is known as the gastrovascular cavity. Food passes first into a pharynx and digestion occurs extracellularly in the gastrovascular cavity. When gastrovascular canals extend outside of the mat, they are called stolons. The mouth opens into the gastrovascular cavity, where digestion takes place and nutrients are absorbed. In some colonial cnidarians, the mesenchyme is perforated by gastrovascular channels continuous among colony members. Fertilisation takes place inside the female's gastrovascular cavity, and the larvae are brooded there. After that, the prey is transported to the gastrovascular cavity where it is subsequently digested. A gastrovascular cavity is present where the digestion starts and later becomes intracellular. Individual polyps have eight feathery tentacles and, in the gastrovascular cavity, eight septa, or partitions.