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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Have you like me tried to build and gain muscle ‚ or maybe you just looking for a bit more info on the subject. Building muscles are not really easy but if more effort is devoted to muscle building in no time we can gain the type of muscle we want.To build muscle fast requires a muscle building workout plan.I could remember when i tried muscle building without any workout plan‚i had muscle pull for 1 week‚i felt pains all over me to the extent i couldn’t move some parts of my body because of this
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In a human body there many muscles but therefore are seven major muscles groups and correspond to many exercises there are legs one exercises that common is squats‚ chest exercise is like bench or push up‚ back one of the exercises is dumbbell‚ shoulder exercise is lateral raises‚ biceps exercise like barbell curl‚ triceps exercise like kick back and abdominal exercise like bicycle Exercise. Circuit training is a method of resistance training‚ or weight training that maximizes of work done in a
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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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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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Lab 6 Biomechanics of Frog Skeletal Muscle I. Purpose This exercise is designed to demonstrate some mechanical and physiological properties of skeletal muscle using the gastrocnemius muscle of a frog. II. Performance Objectives At the end of this exercise the student should be able to: 1. Define minimal (threshold)‚ subminimal‚ maximal‚ and supramaximal stimulus. 2. Explain what is meant by a “graded” response. 3. Draw a diagram of the setup used in this lab exercise. 4. Calculate the
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ACTIVITY 6: The Skeletal Muscle Length-Tension Relationship 33. In a force-length graph‚ a. the muscle length is the independent variable. b. the amount of force generated is the dependent variable. c. both active and passive forces must be considered. d. All the above are correct. correct answer 34. According to your lab manual‚ the protein titin is the primary cause of _________ __________. Passive Force 35. In this lab simulation‚ the muscle length of _______ mm
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without a single human present? A place where robot arms are carrying heavy items‚ and small robots running around the place‚ each doing a specific action. We have to know that more and more robots are involved in manufacturing work. If we continue to turn a blind eye towards the uprising and dominance of intelligent robots‚ our jobs could easily be taken away by them. While investors have always claimed that robots can reduce the manufacturing cost9Intelligent robots and humans are about similar
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Review: Skeletal Muscle Tissue Graphics are used with permission of: Pearson Education Inc.‚ publishing as Benjamin Cummings (http://www.aw-bc.com) Page 1. Introduction • Skeletal muscle cells have unique characteristics which allow for body movement. Page 2. Goals • To compare and contrast smooth muscle cells‚ cardiac muscle cells‚ and skeletal muscle cells. • To review the anatomy of skeletal muscle. • To examine the connective tissue associated with the skeletal muscle. • To review
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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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