Development of the digestive system in the gut layers and in places mesenteries extend from the gut as double layers of peritoneum. Mesenteries provide a pathway for vessels, nerves, and lymphatics to the organs. Initially, the gut tube from the caudal end of the foregut to the end of the hindgut is suspended from the dorsal body wall by dorsal mesentery. Ventral mesentery, derived from the septum transversum, exists only in the region of the terminal part of the esophagus, the stomach, and the upper portion of the duodenum. The diaphragm divides the body cavity into the thoracic cavity and the abdominal cavity. It develops
Digestive biscuit culture, the digestive is ranked the fourth most popular biscuit for "dunking" into tea, with the chocolate digestive coming in at number one. In 1839, digestives were first developed in the United Kingdom by two Scottish doctors to aid digestion. Digestives featured in advertisements for the Berkshire-based biscuit company Huntley & Palmers in 1876, with a recipe being given in Cassell's "New Universal Cookery Book" of 1894. In 1851 an issue of The Lancet London's advertising section offered "brown meal" digestive biscuits. At the time, it was asserted grain millers knew only of bran and endosperm. After 10% of the