In this article we will discuss about the mechanism of bile with the help of suitable diagram. Bile secretion by liver is an active and continuous process, but its expulsion in the duodenum is intermittent. These facts necessarily prove that after secretion bile must be stored somewhere. The gall-bladder is the chief place for bile storage. The common bile duct, [...]
In this essay we will discuss about the digestive system in humans. After reading this essay you will learn about:- 1. Organs of Digestive System 2. Accessory Glands for Digestion of Foods. Essay # 1. Organs of Digestive System: Digestion means simplification of complex foods. It is the process of breaking various foodstuff into simple products. The complex foods like [...]
The following points highlight the three important stages of swallowing. The stages are: 1. Buccal or Oral Stage 2. Pharyngeal Stage 3. Esophageal Stage. 1. Buccal or Oral Stage: By the action of tongue, and muscles contracting against the palate, the food is converted into bolus which is lubricated by saliva. The bolus is then pushed by the tongue to [...]