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 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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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 at 20 Hz with both a voltage that produced only a modest
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There are three phases for muscle cell contraction: initiation of action potential in the sarcolemma‚ excitation-contraction coupling‚ and contraction‚ sliding of the myofilaments. ATP and calcium ions are two essential elements for muscle contraction. When ATP attaches to the myosin head‚ it gets hydrolyzed to ADP and Pi. Calcium ions bind to the troponin molecules and help expose the binding sites of actin filaments to allow for the attachment of the myosin heads. After the sliding of the myofilaments
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“The New Deal failed to achieve its objectives” The ‘New Deal’ was introduced by Franklin D. Roosevelt in 1933‚ in his first 100 days in office. The new deal was based upon a series of economic programmes implemented in the United States by the federal government. Importantly‚ part of the new deal was based on the ‘Alphabet Agencies’ which were numerous amount of authorities/acts which were set up to either provide relief (for the people who had been affected by the great depression)‚ reform (changing
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During this coursework‚ I would be investigating the concept of relational contracting and how it is used in the real world‚ this would be followed by a full explanation of the advantages and disadvantages of relational contracting‚ supported by real case studies and how some of the advantages in turn might lead to the saving in transaction costs. Managing the relationship between various parties is becoming crucial as the industry is moving from fragmented and adversarial ways of working. Under
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“The course of true love never did run smooth” Lysander said in A Midsummer Night’s Dream. This is a play is about a group of four Athenian lovers and their journey through love along with the ruler of Athens and his soon to be wife‚ and of course the King fairy and his wife. This quote from Lysander‚ one of the Athenian lovers‚ is relevant in this story because of the difficulties in all of the relationships. Lysander and his lover Hermia‚ Theseus‚ the king of Athens‚ and his lover Hippolyta‚ and
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From 1933 to 1939 Hitler aimed to achieve a "social revolution" in Germany. Through his concept of volksgemeinschaft‚ meaning ’people’s community‚’ he hoped to transform Germany into a strong country based on traditional peasant values. Historians have debated how far Hitler actually achieved a "social revolution." Some‚ such as Schoenbaum have argued that Hitler’s "social revolution" was a fake perceived as being real due to the influence of Hitler’s propaganda. Hitler wanted Germany to be a classless
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of the Interior took his place and immediately asked Hitler to send the German army into Austria to help restore order. The Anschluss was established on 14th March 1936. Reasons why Hitler was able to achieve the Anschluss was that he was very opportunistic. Hitler’s second attempt to achieve the Anschluss was in 1936 during the Spanish civil war. Because Hitler and Mussolini
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Many Americans will work their whole lives trying to achieve The American Dream‚ but most will not achieve it. Lena Younger was a widow whose husband left a substantial amount of money that would help his family. Instead‚ it would tear them up and put their family up to the ultimate test. In the end‚ the Youngers would realize that as long as they had each other‚ they may not reach The American Dream but at least they had family and respect for themselves. A Raisin in the Sun broadcasts a family
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