accessory digestive organs involved including the salivary glands‚ liver‚ pancreas‚ and gallbladder. Digestion begins in the oral cavity where the cheeks and lips press the food against the teeth‚ a process known as mastication. This is the first phase of mechanical digestion which is also aided by the tongue. There are three major pairs of salivary glands that secrete approximately 1 liter
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for digestion‚ the salivary glands‚ teeth‚ tongue‚ liver‚ gall bladder and pancreas. The function of the digestive system is to breakdown food‚ so nutrients can enter the blood and lymph system. To start this process‚ we have to start with the mouth‚ when food is put in to the mouth you start the process of digestion‚ the structure of the mouth is made up of the lips‚ teeth‚ tongue‚ salivary glands‚ soft palate and pharynx. The lips function is to hold food in. The salivary glands‚ there are
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Pharynx‚ E. Stomach‚ F. Gall bladder G. Colon‚ H. Tongue‚ I. Liver‚ J. Small intestine‚ K. esophagus‚ L. Salivary glands M. Pyloric sphincter‚ Region/organ Function B Produces the enzymes to digest proteins‚ fats and carbohydrates in the small intestine. Also produces the hormone insulin H Organ that mixes food in the mouth and makes swallowing happen L Produce saliva containing salivary amylase . K Carries the food from the mouth to the stomach F Stores bile M This muscle controls the passage
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Chemical and Physical Processes of Digestion exercise T 8 he digestive system is a physiological marvel‚ composed of finely orchestrated chemical and physical activities. The food we ingest must be broken down to its molecular form for us to get the nutrients we need‚ and digestion involves a complex sequence of mechanical and chemical processes designed to achieve this goal as efficiently as possible. As food passes through the gastrointestinal tract‚ it is progressively broken down
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Digestion process of carbohydrates: 1. Mouth- moistening of food due to the action of the salivary glands‚ polysaccharides breaks down by the salivary amylase. 2. Pulpy acidic fluid called chyme enters the stomach. Stomach acids destroy bacteria in the chyme. 3. In the small intestine (duodenum) and pancreas polysaccharides firstly breaks down into the disaccharides due to the action of pancreatic amylase and then to the monosaccharides due to action of such enzymes as lactase‚ maltase and sucrase
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Understanding the functions of the body systems associated with energy metabolism Energy is used for many of the bodily functions including the ability to ventilate‚ respire‚ move‚ grow and repair. The first law of thermo dynamics states that energy can be transformed from one state to another but cannot be lost. Energy comes in many forms‚ some of these are as follows:- Light Sound Kinetic Heat Chemical In accordance with the First Law an example of how energy can transform is when the sun creates
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This is known as salivary cortisol testing‚ which can collect fluid from the sublingual‚ parotid‚ and submandibular salivary glands. The levels of cortisol are measured through the alpha amylase‚ which spikes due to stress. Salivary cortisol sample collection is non-invasive and salivary amylase measurement is an accurate tool for stress assessment (Lai‚ 2005). The behavioral method one could employ to measure
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digestion to occur faster. The presence of the food in the mouth stimulates exocrine glands. This causes the mouth to secrete digestive enzymes‚ namely salivary amylase. These secreted enzymes aid in the breakdown of foods‚ officially starting the digestion process. Carbohydrates in particular are mostly broken down by salivary amylase. Salivary amylase breaks starch‚ a popular carb‚ down to maltose. This means that the bread of the ham and cheese sandwich will notably be chemically altered at this point
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for glycogen are the: (Points : 1) | Muscles and liver. kidney and muscles. liver and kidney. liver and pancreas. | 2. (TCO 2) Which of the following enzymes is found in the mouth? (Points : 1) | Lactase Maltase Pancreatic amylase Salivary amylase | 3. (TCO 2) After a meal‚ which hormone is responsible for moving glucose into the body’s cells? (Points : 1) | Glucagon Estrogen CCK Insulin | 4. (TCO 1) What is the major monosaccharide found in the body? (Points : 1)
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SCIENCE - FORM 2 Nutrition CLASSES OF FOOD 1. Food is a basic necessity for all living things. 2. Food is important in order to : (a) Provide energy to carry out physical activities. (b) Provide energy for the physiological activities in life such as reproduction‚ digestion and excretion. (c) Build new cells and ti repair tissues in the body.
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