In this article we will discuss about the composition of faeces in human body. The chyme derived from the first food intake requires 36 hours for its solidification to be converted into solid residual matter known as faeces. Roughly about 150 gm of solid stool is passed in 24 hours. If vegetable, coarse cereals and cellulose be excluded from the [...]
In this article we will discuss about the movements and functions of large intestine of human body. Movements of Large Intestine: The colon receives mixed residues of food which have escaped digestion and absorption in the stomach and small intestine, i.e., undigested or indigestible food residues, whatever remains of digestive juices including large amount of H2O and the fluid that [...]
Deglutition or swallowing is probably a reflex phenomenon. Higher centres facilitate this reflex. Once aroused, the swallowing centre in the medulla evokes the complete act of swallowing by discharge through six nuclei and the motor neurones. This reflex act occurs in three stages: (1) First or oral, (2) Second or pharyngeal, and (3) Third or oesophageal (Fig. 9.46). (1) First [...]