Digestive System: As with any system we are learning in this course‚ the structural anatomy and functions of each are the basis of your learning. Otherwise known as the alimentary canal‚ the best way to learn the digestive system structures and their functions is to follow some food through the process from beginning to end. Where does the food go? As food enters the mouth‚ both mechanical and chemical digestion begins. First the food is physically broken down by the mechanical process
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carried out by enzymes. Mechanical digestion: Is the physical breaking down of larger food into pieces to increase its surface area (the higher the surface area‚ the higher the rate of chemical digestion. Peristalsis: the squeezing of the digestive tract that pushes food down in one direction. Bolus: the partially digested food that is swallowed after mastication. Chyme: the partially digested food mixed with the enzymes and acid in the stomach. Bile: The secretion produced by the
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Digestive System Notes 2. List the major parts of the alimentary canal; then separately list the accessory organs of the digestive system. a. Mouth—the oral cavity. b. Pharynx—extends from the back of the nasal cavity to the top of the esophagus. c. Esophagus—extends from the pharynx to the stomach. d. Stomach—just below the diaphragm on the lefi side of the body. e. Small intestine—extends from the stomach to the large intestine. f. Large intestine—extends from the small intestine to the
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EASTERN ILLINOIS UNIVERSITY DEPARTMENT OF EARLY CHILDHOOD‚ ELEMENTARY AND MIDDLE LEVEL EDUCATION The Department Lesson Plan TITLE OF THE PLAN: The Digestive System GRADE LEVEL: 7th SUBJECT AREA: Science CONCEPT/SKILL: To know the different organs in the digestive system and their functions. The students will also learn more intensely about the esophagus. TARGET AUDIENCE: Regular class size. 50-minute class period I. PREPARING TO TEACH: Identifying goals‚ objectives
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Cerebellum – coordination of movement and aspects of motor learning Cerebrum – conscious activity including perception‚ emotion‚ thought‚ and planning Thalamus – Brain’s switchboard – filters and then relays information to various brain regions Medulla – vital reflexes as heart beat and respiration Brainstem – medulla‚ pons‚ and midbrain (involuntary responses) and relays information from spine to upper brain Hypothalamus– involved in regulating activities internal organs‚ monitoring information
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heart and the resistance to blood flow in the vessels determines blood pressure. Resistance is determined by blood viscosity and by friction between the blood and the wall of the blood vessel. Blood pressure = blood flow x resistance. The Digestive & Intestinal System Each cell of the body requires a constant supply of nutrients to use
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Human Digestive System The digestive tract is a series of hollow organs through which food passes: mouth‚ pharynx‚ esophagus‚ stomach‚ small intestine. Each portion is specialized for one or more aspect of the three major functions of the digestive system the secretion‚ digestion‚ and absorption. Accessory organs such as salivary glands‚ liver‚ gallbladder and pancreas have duct that lead into the digestive tract and thus support digestive function. Digestion is defined as the mechanical
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Disease in Digestive System Viral Gastroenteritis -is an inflammation of the lining of the stomach‚ small intestine‚ and the large intestine. Several different viruses can cause viral gastroenteritis‚ which is highly contagious and extremely common. It causes millions of cases of diarrhea each year. Anyone can get it and most people recover without any complications‚ unless they become dehydrated. Causes of Viral Gastroenteritis There are four viruses that cause Viral Gastronenteritis namely:
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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
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Disorders of the Digestive System Diarrhea Dysphagia Constipation Enteritis Appendicitis Flatus Tumor Gastrectomy Cirrhosis Pancreatitis Hepatitis Cholecystitis Anorexia Nervosa Cholelithiasis Bulimia Diarrhea • Is a Condition that Involves the Frequent Passing of Loose or Watery Stools - It is the Opposite of Constipation and can have Many Causes‚ which may
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