Human Digestion

Today many people find their selves running bug out the door while still eating breakfast, if they eat breakfast at all, skipping lunch and eating a late dinner. These are unhealthy eating habits that many of us practice individually day and that can significantly affect our health. The human consistence uses various sources of intellectual nourishment for energy and growth. However, food must be changed into a form that can be carried through the bloodstream to be used. This process of extracting nutrients from food is called digestion. The digestive system is a series of organs that perform the process by which food, containing nutrients, is eaten and disjointed down into assorted components. The digestive process contains many different steps that take place in a issuance of different organs.
Before eating does your utter start wet? Our mouths really do water, but it is not actually water we sense but a thin mucous-like fluid called tongue. spitting is the term for the secretions of the three salivary glands and each gland produces a different type of secretion. The parotid glands create watery saliva that supplies enzymes, the submandibular gland produce mucus and enzyme components, and the sublingual glands create a mucous type of saliva. Food in the mouth stimulates twain chemical and mechanical digestion.



Chemical digestion occurs when saliva moistens the foods we chew and besides the saliva secretions contain amylase, an enzyme that begins the digestive process of starches. Mechanical digestion occurs in the mouth depending on teeth. The teeth act as gears to powder chunks of food by a series of actions such as grinding and crushing. The teeth do the first drastic demise to food in the digestive system. The tongue helps remove, and dislocate food particles in the teeth and shifts food around in the mouth in order to assist with the important act of swallowing. The tongue effortlessly forms the bolus (a lump of chewed food ready to be swallowed), which is swallowed and passed. Also, the tongue...If you emergency to get a full essay, order it on our website: Orderessay



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