In this article we will discuss about:- 1. Nerve Supply of Salivary Glands 2. Mechanical Effects of Salivary Secretion 3. Observations 4. Rate of Flow and Composition 5. Adaptability 6. Disturbances. Nerve Supply of Salivary Glands: The salivary centre consists of superior and inferior salivary nuclei in the reticular formation of the medulla. The salivary glands receive double nerve supply—both [...]
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 [...]