Stomach the first three chambers of which are all lined with oesophageal mucosa. In birds and crocodilians, the stomach is divided into two regions. Anteriorly is a narrow tubular region, the proventriculus, lined by fundic glands, and connecting the true stomach to the crop. Beyond lies the powerful muscular gizzard, lined by pyloric glands, and, in some species, containing stones that the animal swallows to help grind up food. In insects there is also a crop. The insect stomach is called the midgut. Information about the stomach in echinoderms or molluscs can be found under the respective articles. Stomach The stomach
Gourd mouth organ in some gourd mouth organs allow for the bending of tones. The "lusheng" of the Hmong, Miao, and Dong people has a similar name but its windchest is made from an elongated tube of wood rather than gourd. Gourd mouth organ A gourd mouth organ is a traditional wind instrument found in many nations of East and Southeast Asia. It is a free reed mouth organ similar to the Chinese "sheng" but with a windchest made from a dried bottle gourd rather than metal or wood. Its pipes (often five in number) are made of bamboo and it has free