1. Our digestive system provides the body a means to transfer nutrition from the external environment into the cellular level in order to sustain life. Salivary glands‚ controlled by the autonomic nervous system‚ are located in the oral cavity. Its main role is to secrete saliva in the oral cavity. There are three pairs of salivary glands. Parotoid savary gland lies under the skin on each side of the mandible. These glands secrete amylase‚ an enzyme that breaks down starches. The parotoid duct implies
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Checkpoint: Human Digestion Jackie Burkhardt SCI 241 10/15/2010 Sherrie H. Lu The digestive process starts with saliva. Saliva begins with the scent or sight of food. Food enters the digestive system starting at the mouth. Food is broken into smaller pieces by your teeth. The broken up pieces of food mix with saliva and break down into a substance called bolus‚ which is a ball of chewed food. Bolus then passes through the pharynx‚ which helps us swallow‚ into the esophagus and into the stomach
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creating waste to be eliminated. The digestive tract (or gut) is a long twisting tube that starts at the mouth and ends at the anus. It is made up of a series of by muscles that coordinate the movement of food and other cells that produce enzymes and hormones to aid in the breakdown of food. Along the way are three other organs that are needed for digestion: the liver‚ gallbladder‚ and the pancreas. Stop 1: The Mouth The mouth is the beginning of the digestive system‚ and‚ in fact‚ digestion starts
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Sibley_______________________ Date:_2/5/15_________ Period:___5th__ Digestive System Worksheet 1. Peristalsis is: a) the rhythmic contraction of the smooth muscle in the gut wall to push food along b) the secretion of bile into the small intestine when a fatty meal is eaten c) the churning movement of the stomach to mix its contents d) the rhythmic contractions of the diaphragm to produce hiccups 2. Arrange the following parts of the digestive system in the order in which food passes through on the way
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Digestion is a process in which the food that we eat is broken down into tiny nutrients to be taken in by the body. Within the human digestive system‚ chemical and physical reactions occur that allow for the digestion and the absorption of proteins into the bloodstream. The purpose of this paper is to show how chemistry relates to the daily functions within the body. There are two types of digestion processes‚ which are called mechanical and chemical digestion. Mechanical digestion includes the
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body is made up of a number of systems that all interlink and produce everything we need in order to survive. Within the body there is the digestive system; the circulatory system‚ the nervous system‚ the muscular system‚ the skeletal system and the reproductive system. These systems are all part of one another and they share organs‚ tissues and cells and that is how they interlink. The diagram above shows each system and where they are located in the body. Each system is shown in a different image
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organisms. Throughout the digestion process‚ food is broken down into small molecules‚ where it can be absorbed easily. There are many organs that aid in this complex task. Ingestion‚ digestion‚ and absorption are the three necessary steps of the digestive process. First‚ food is ingested. Ingestion takes place in the mouth. Once food enters the mouth‚ teeth chew it. The salivary glands produce saliva‚ which is mixed with food while chewing. Saliva helps break the food into smaller pieces. These
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of proficiency. 1. identify the structures and functions of the Digestive System 2. label the parts or organs that involved in the diagram of digestive system 3. realize the importance of the digestive process in our body II – SUBJECT MATTER: Topic : The Structures and Functions of the Digestive System Reference : You and the Natural World_The New Science 8‚ pages 286-290 Materials : pictures/illustration of Human Digestive System / chart visual aid laptop and LCD(optional) Methodology : Experiential
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PRE-LAB: 1. The value to students of dissecting a mammal‚ especially a pig because most students like to learn hands on giving them an opportunity to dissect a pig gives us a chance to give us a visual and help us understand the systems in a mammal. 2. My feeling about dissecting a pig is nervous because it is a real pig even though it is fetal. I feel like I will end up cutting the pig in the wrong spot. I am also excited to dissect the pig because I have never experienced this before and think
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There is another accessory organ that also dumps its products into the duodenum around the same area; this organ is called pancreas. Pancreas is very important‚ as it secretes probably the most important digestive enzymes into the small intestine; break down. The main enzymes secreted by the pancreas for digestion are lipases for lipid/fat digestion‚ pancreatic amylase for carbohydrate digestion which continues the breakdown of the starch in the bread to a substance called maltose. As the food is
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