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Alcohol Abuse in Teenagers

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ACTIVITIES RELATED TO NUTRITION & GASTRO INTESTINAL (GIT) SYSTEM.

This section relates to activities on introduction to GIT. You are expected to consult the recommended physiology textbooks in your module study guide and the online textbook to gain adequate knowledge on these topics.

Activity 1
Identify the anatomical structure of the GIT? * Mouth * Pharynx * Oesophagus * Stomach * Small intestine * Large intestine
1.2 – Explain the functions of the features identify in activity 1.1? * Mouth: Food begins its journey through digestive system in the mouth; inside the mouth are many organs that aid in the digestion of food –the tongue, teeth, and salivary glands. Teeth chop food into small pieces, which are moistened by saliva before the tongue and other muscles push the food into the pharynx. * Pharynx: the throat; a tube that starts at the internal nares and runs partway down the neck where it opens into the oesophagus posteriorly and the larynx anteriorly. It functions as a passage way for both the digestive and respiratory systems. The pharynx receives the food after being swallowed and pushes it to the oesophagus. * Oesophagus: The hollow muscular tube that connects the pharynx and the stomach. The oesophagus contracts to produce wavelike motions, it receives food from the mouth when you swallow by means of a series of muscular contractions called peristalsis, the oesophagus delivers food to the stomach At the inferior end of the oesophagus is a muscular ring called the lower oesophageal sphincter .The function of this sphincter is to close of the end of the oesophagus and trap food in the stomach. * Stomach: The J shaped enlargement of the

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