ABSTRACT

After studying this chapter, the reader should be able to

Describe the nervous and hormonal regulatory mechanisms operating within the gut.

Describe the physiology of swallowing, salivary secretion and the functions of saliva.

Describe the physiology of the lower oesophageal sphincter (LOS).

Outline the physiology of gastric emptying and the factors that influence gastric emptying time.

Describe gastric secretion and motility and its control by hormones and neural mechanisms.

Outline the functions of the small intestine: its secretions, motility and absorption of nutrients.

Describe the exocrine function of the pancreas.

Outline the function of the gall bladder and biliary secretions.

Describe the digestion of food and absorption of nutrients.

Describe the role of the large intestine in the absorption of water and electrolytes and the importance of intestinal flora.