Structure and Function of the Human Digestive System By Caitlin Ong Organs of the Digestive System Mouth Structure: The mouth consists of the upper and lower jaw‚ that contain gums which hold teeth‚ the roof of the mouth is the palate and the tongue occupies the floor of the mouth. The salivary glands have ducts that open in the mouth. Function: The mouth is where the first step of digestion begins. Known as mechanical digestion‚ this involves chewing with your teeth to break the food
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Week 3 Lab 4 – Endocrine System Physiology - Activities 1-4 pages 43 - 48 Latasha Roberts March 25‚ 20012 SC145L-8H Introduction: (please post an introduction to the lab‚ include what you will be doing for each activity) Activity 1: Determining Baseline Metabolic Rates Data: (add your results here in numbers - Chart 1 is used in Activities 1-4) Chart 1 – Effects of Hormones on Metabolic Rate Rat Types Baseline: Normal Thyroidectomized Hypophysectomized Weight
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Background The stress response in the body triggered by the sympathetic nervous system (SNS) contains two different chemicals – neurotransmitters and hormones. Neurotransmitters‚ specifically norepinephrine (NE)‚ are released into the postganglionic synapses of the sympathetic nervous system (SNS) during flight or fight response. NE carries out its effects on a target cell by binding to and activating adrenergic receptors. NE is usually eliminated through the reuptake into presynaptic cells and enzymes
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contrast of a rabbit and tigers digestive systems Rabbits are herbivores that eat grass only. Rabbits can’t eat meat because it’s easier for them to digest grass. Tigers are carnivores that eat meat only. Tigers can’t eat grass because they cannot digest the food fast enough and their digestive system in the stomach is short. The digestive system of a tiger consists of an oesophagus‚ pancreas‚ mouth‚ stomach‚ small intestine‚ caecum‚ Large intestine. The digestive system of a rabbits consists of a
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Renal System Physiology Exercise 9 page. 121 Name: SC 245 L Date: Point Break down: 100 points Questions: 60 points Data/Results: 15 points Summarizing activities: 25 points Introduction: In this lab we will learn how the kidney processes blood and produces urine. Activity 1: Investigating the Effect of Flow Tube Radius on Glomerular filtration. Data/Results: Please submit a chart or type your data. Questions: Please answer the questions in complete sentences and explain your answers.
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Diarrhea is a complication of the alimentary or digestive system‚ a complication we all have faced one time or another. Ivan Damjanov’s Pathology for the Health Professions defines diarrhea as “the frequent passage of loose‚ watery stools because of intestinal or pancreatic and hepatobiliary disturbances” (Damjanov‚ 2012). The primary reason why diarrhea occurs is due to an increase in colonic fluid volume in the intestines. The increase in colonic fluid is a result of three physiologic mechanisms
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Cystic fibrosis‚ PKU and the Digestive system 1. What are the symptoms of cystic fibrosis and PKU with respect to the digestive system? Symptoms for cystic fibrosis include diarrhea that does not go away‚ foul-smelling stools‚ greasy stools‚ frequent urinating‚ frequent episodes of Pneumonia‚ persistent cough‚ skin tastes like salt‚ poor growth‚ chronic sinus infection. When phenylalanine builds up it affects brain functions and the central nervous system. Some symptoms include: skin problems
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Beny Beans Journey of the Digestive System By Riley Trachtenberg Ahhhh! Before I could believe it I was being chewed up by wired teeth. The salivary glands made me all soft and moist. I was formed into a bolus like my Italian meatball friends. I looked at my other bean friends and they all looked terrified. While going down the esophagus it felt like we were going down the Drop of Doom. The peristalsis propelled us down the esophagus and into the stomach
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This lab has introduced the use of daphnia‚ pill bugs‚ amoeba and Uglena. We the AP Biology students were first introduced to the test subjects to test his or her capability of handling living organisms for upcoming science experiments. The AP Biology students were asked to create original experiments for all test subjects testing reactions to gravity‚ light intensity and reaction to food. Daphnia‚ or Daphnia magna‚ are microscopic organisms in which the students created an original lab to test
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Case Study 20: The Digestive and Urinary Systems 1) Marissa‚ a newborn with a cleft lip and palate‚ is the third child of Juan and Maria. Both Juan and Maria are “visually alarmed” at Marissa’s appearance; however‚ Juan is more distant and reserved. Maria is very concerned with Marissa’s wellbeing and future and seems to take blame for Marissa’s physical condition. 2) The incidence of cleft lip (CL) with or without cleft palate (CP) is approximately 1 in 800 live births. The incidence of CP alone
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