Activity of Gastrointestinal Smooth Muscle: Worksheet Please Ensure That You Have Completed The Calculations In Tables 1-3 Before You Answer The Worksheet Questions Table 1. The effects of phentolamine and atropine on the contractile response to nerve stimulation (20 Hz) in the isolated rabbit ileum | |Contraction amplitude |Contraction amplitude with the |Effect of nerve stimulation on the contraction amplitude | | |pre-nerve
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INTRODUCTION Give a brief description in your own words of the objectives and aims of this practical. The aim of this practical is to investigate how the autonomic nervous system (ANS) affects the motility in the gastrointestinal tract‚ by experimenting with the release of neurotransmitters. A. RESPONSES TO NERVE STIMULATION Attach a copy of your experimental recordings showing a period of spontaneous contractions and the response to stimulating the nerves
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Smooth muscle- are involuntary muscles found in the walls of hollow organs like the stomach‚ intestines or bladder. Smooth Muscles have many functions in the body‚ but one of the functions of smooth muscles in the bladder contracts to push urine out of the body. Skeletal muscle- Skeletal Muscles are muscles attached to the skeleton. The skeletal muscles main function is to contract to support the skeleton in movement. Skeletal muscles are voluntary because we have complete control of the movements
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INTRODUCTION Smooth muscle fibers in different organs are distinctly different from each other in their physical dimensions‚ organization into bundles or sheets‚ response to stimuli‚ characteristics of innovation‚ and function. Smooth muscle is responsible for the contractility of hollow organs‚ such as blood vessels‚ the gastrointestinal tract‚ the bladder and the uterus. Specifically in the uterus‚ regulation of smooth muscle contraction is under the influence of an octapeptide known
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The action of ANS-related drugs on smooth muscle Introduction In the following experiment‚ the key objective is to compare the mechanical changes in tonic force by longitudinal smooth muscle after the addition of different concentrations of the drugs noradrenaline and acetylcholine. Peristalsis is the wave of muscle contractions that allow circular muscles to constrict the gut and longitudinal muscles to shorten it in an attempt to move the food bolus towards the rectum. A series of dilutions
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Compare and contrast cardiac and smooth muscle. In cardiac muscle‚ each heartbeat is triggered by the hearts own pacemaker cells‚ which initiate electrical discharge and when this reaches the contractile muscle cells (the cardiomyocytes)‚ they create an action potential which increases the concentration of calcium ions into the cell. Calcium ions play a key role in activating what is known as the contractile machinery – the actin and myosin filaments. The cardiac action potential‚ unlike other forms
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MAJOR MUSCLE GROUPS WORKSHEET‚ Reflection questions and surface anatomy This worksheet will guide your note-taking for the Major Skeletal Muscles slideshow. Be sure to include drawings or sketches of your muscle groups. It will help you when you are studying this material in the future. Your drawings do not need to be fancy. You can make simple stick figures with arrows pointing to the location of the muscle group if you wish. 1. Axial muscles are skeletal muscles of the Trunk or Head
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Business Plan [pic] Proposed For Gastrointestinal Endoscopy Ambulatory Surgical Center of Galveston Table of Contents 1. Executive Summary……………………………………………………… 1. Introduction……………………………………………………………… 2. The Company…………………………………………………………… 3. Mission …………………………………………………….................. 4. Vision ……………………………………………………………………… 5. Objectives…………………………………………………………….. 2. Medical Practice Overview……………………………………. 1. Facility and
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Gastrointestinal (GI) bleeding can occur when an acute or chronic irritant disrupts the mucosal barrier or when a disease alters the process that maintains the mucosal barrier (LaMone‚ Burke‚ Bauldoff‚ & Gubrud‚ 2015). Gastrointestinal bleeding can happen anywhere along the gastrointestinal tract (Gastrointestinal bleeding‚ 2015). GI bleeding is divided into upper GI bleeding and lower GI bleeding. The upper GI bleeding includes the esophagus‚ stomach‚ and the first part of the small intestine
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Case Study 2 Glossary 0.5% Marcaine – dictated “half percent”; brand name for local anesthetic 19-French – French is a scale used to denote catheter sizes and other tubular instruments; each unit is approximately 0.33 mm in diameter; 19-French indicates a diameter of approximately 6.2 mm. 89% shift – “shift to the left” on CBC differential indicates an increase in the number of band cells or band; 89% represents the percentage of band cells compared to the total number of white cells counted;
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