The small intestine is broken down into three regioins which are respobsible both digestion and absorption. Most digestion occurs in the duodenum while the jejunum and ileum have a greater role in the absorptive function of the small intestine. Since peanut butter‚ contains a pretty high fat content‚ the duodenum releases the hormone enterogastrone‚ which
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in passing of stool. Faulty digestion and poor absorption of the digested material explains the high solute concentration. Improper balances of the normal micro flora can also result in high concentrations of solute in the lumen because some of the bacteria in the gut aids in adequate and sufficient digestion. Therefore a lack there of would hinder proper function. Dr. Bharucha also mentions that “rapid intestinal transit and diminished surface area impair digestion” therefore leading to diarrhea
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Principles of Human Physiology‚ 4e (Stanfield) Chapter 20 The Gastrointestinal System 20.1 Multiple Choice Questions 1) Which of the following is NOT a basic process of the gastrointestinal system? A) digestion B) filtration C) absorption D) secretion E) motility Answer: B Diff: 4 Page Ref: 568 2) Which of the following is the correct order of the layers of the gastrointestinal tract wall‚ from lumen to external surface? A) mucosa submucosa muscularis externa serosa
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GI Histology Pre-Lab questions Review the Lab manuals and answer the following questions. Most answers will come from careful reading of the lab manuals but if you must consult an outside source (internet‚ textbook) for the answers you must reference the source. All work is expected to be completed individually. Evidence of collaborative work and /or plagiarism will be considered academic dishonesty and punished as outlined previously. Answers are to be uploaded electronically in a word
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Dillon Patel April 14‚ 2014 Biology 2 Lab Fetal Pig Dissection: Respiratory and Digestive Systems Organs Functions Salivary Glands -Three pairs of exocrine glands in the mouth that secrete saliva; the parotid‚ submandibular (sub maxillary)‚ and sublingual glands The parotid is the largest and most easily visible of all the salivary glands. The sunbmaxillary is bean shaped and located under the bigger parotid gland. The submandibular gland lies near the jaw line. Glottis -The opening
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the small intestine. The stomach’s role in digestion is to break down food and mix it with digestive juices. The location of the stomach is just lying beneath the diaphragm on the left side. The muscle tissue of the stomach is called non striated tissue which is smooth and plain having layers of muscle with a single nucleus. Ridges of muscle tissue called rugae line the stomach. The stomach muscles contract regularly‚ churning food to enhance digestion. The stomach tissue is also called the gastric
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Introduction The Digestive system breaks down the ingested food into absorbable forms of nutrients and absorbs nutrients‚ ions and water from the external environment of the body. It is designed to maximize digestion and absorption. The functional structures of the digestive system are the passage‚ the glands like salivary glands‚ gastric glands‚ pancreatic‚ intestinal glands and liver. Also‚ the four layers of the digestive system are mucosa‚ submucosa‚ muscularis and serosa. The digestive system
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Organ Systems and their functions I. Integumentary System Functions to protects against environmental hazards; helps control body temperature. Composed of Skin and derivates Epidermis – covers surface; protects deeper tissues Keratinocytes – waterproofing Melanocytes – pigment –protects against UV light Dermis – Nourishes epidermis; provides strength; contains exocrine glands Collagenous tissue – strength Skin Derivates A. Hair– protection and warmth (vellus – fine un-pigmented hair: terminal
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parts. THE DIGESTIVE SYSTEM Digestion is a process of breaking down large complex food substances into simple molecules that can be used by each cell. Most of the foods of organisms consist of carbohydrates‚ fats‚ and proteins. Each of these large molecules acted upon by special kinds of digestive systems that speed up digestion by hydrolysis or splitting of molecules. Food also includes smaller molecules such as water‚ minerals and vitamins. DIGESTION IN PLANTS Plants do not have
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glass water bottle with you. Count how many times you fill it up. At least 8 glasses of water a day will keep your energy levels high‚ your hunger down‚ your digestion smooth and your concentration sharp. When we are dehydrated‚ our bodies often mistake this feeling for hunger. Make sure to not drink water before meals as this can hinder digestion. Drink 20 minutes before and 30 minutes after. Also‚ try and drink
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