Tag Archives | Digestive System

Function of Stomach (With Diagram)| Digestive System

In this article we will discuss about the function of stomach. 1. Temporary storage organ: It acts as a temporary storage organ. Because of this, the frequency of eating is reduced. 2. Secretory function (Fig. 5.9): It secretes HCl and pepsin apart from other things including mucus. The G cells of pyloric region secrete gastrin hormone which is one of [...]

By |2016-11-06T04:09:52+00:00November 6, 2016|Human Physiology|Comments Off on Function of Stomach (With Diagram)| Digestive System

Functions of Saliva | Human Physiology

The functions of saliva are: 1. Lubrication of food: Assisted by chewing, saliva gets mixed with food in the mouth; the mucin which is a sticky substance helps to form bolus. Saliva prepares the food for swallowing forming a slippery coat over the bolus. 2. Solvent action: Taste is a chemical sense. Any substance, the taste of which has to [...]

By |2016-11-06T04:09:52+00:00November 6, 2016|Digestive System|Comments Off on Functions of Saliva | Human Physiology

Biology Notes on Defecation

Defecation is a reflex which results in the expulsion of feces and is normally under voluntary control in adult. In infants, it is purely a reflex action. The desire for defecation is felt when the finally formed feces enter the rectum. Continuous escape or dribbling of feces is prevented by presence of two sphincters. a. Internal anal sphincter: Formed of [...]

By |2016-11-06T04:09:51+00:00November 6, 2016|Digestive System|Comments Off on Biology Notes on Defecation
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