Webstomach, saclike expansion of the digestive system, between the esophagus and the small intestine; it is located in the anterior portion of the abdominal cavity in most vertebrates. The stomach serves as a … WebAbsorption. Although the small intestine is only 3 to 4 cm in diameter and approximately 7 metres in length, it has been estimated that its total absorptive surface area is approximately 4,500 square metres (5,400 square yards). This enormous absorptive surface is provided by the unique structure of the mucosa, which is arranged in concentric ...

the digestive system - Structure and Function

WebMotility, digestion, absorption and secretion are the four vital functions of the digestive system. The digestive system breaks down the foods we eat into energy our bodies can use. The organs that make up the digestive tract include: Mouth. Salivary glands. WebThe breaking down of food by physical means, such as chewing. Absorption. The process by which nutrients pass through the walls of the digestive system into the blood. Excretory system. The body system that removes metabolic wastes from the body. Excretion. The process of removing wastes and excess water from the body. sea speed cha services pvt ltd

Digestive System: What is the Structure and Function?

WebThe digestive system breaks down food into nutrients such as carbohydrates, fats and proteins. They can then be absorbed into the bloodstream so the body can use them for … WebMay 5, 2024 · The role of the lower GI (gastrointestinal) tract is to solidify the waste product (by absorbing water), store the waste product until it can be evacuated (going to the bathroom), and help with the evacuation … WebJan 15, 2024 · The internal structure of the different glands and organs of this system reflect their particular roles, such as the stomach containing multiple muscle layers in order to churn and mix food, or the mouth … sea sphere