------------------------------------------------- Deltoid In human anatomy‚ the deltoid muscle is the muscle forming the rounded contour of the shoulder. Anatomically‚ it appears to be made up of three distinct sets of fibers though electromyography suggests that it consists of at least seven groups that can be independently coordinated by the central nervous system. * Origin: upper clavicle‚ scapula * Insertion: upper humerus ------------------------------------------------- Trapezius
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A patient is admitted for electroconvulsive treatment (ECT). The physician orders the neuromuscular blocking agent metocurine iodide (metubine) to reduce trauma by relaxing skeletal muscles. Explain the process of muscle contraction and how a neuromuscular blocking agent‚ such as metubine‚ would interfere with muscle contraction. According to the Mayo Clinic website electroconvulsive treatment is the use of an electrical signal that sent through the brain to intentionally induce a brief seizure
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Muscles to know of Powerpoint Test Head and Neck Epicranius Frontalis Epicranius Occipitalis Orbicularis Oculi Orbicularis Oris Buccinator Zygomaticus Platysma Masseter Temporalis Sternocleidomastoid Splenius Capitis Semispinalis Capitis Abdomen Rectus Abdominis External Oblique Internal Oblique Transverse Abdominis Lower Leg Gastrocnemius Tibialis Anterior Soleus Arms Biceps Brachii Brachialis Triceps Brachii Brachioradialis Flexor Carpi Radialis Flexor Carpi Ulnaris Extensor Carpi
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EXERCISE 2: Skeletal Muscle Physiology Student Name: Student ID#: Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting‚ e.g. Exercise2_JohnSmith.doc. Please make sure that your answers are typed in RED. (You may delete these instructions
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REVIEW SHEET EXERCISE 2 Skeletal Muscle Physiology NAME: LAB TIME/DATE: Electrical Stimulation 1. Name each phase of a typical muscle twitch‚ and‚ on the following line‚ describe what is happening in each phase. a. b. c. 2. In Activity 2‚ how long was the latent period? __________ msec Describe the chemical changes that are occurring during this period. The Graded Muscle Response to Increased Stimulus Intensity 3. From Activity 3‚ describe the effect of increasing
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Skeletal Muscle Physiology Activity 1 1. Skeletal muscle fiber- long‚ cylindrical cell with multiple oval nuclei arranged just beneath the sarcolemma Motor unit- all of the muscle cells controlled by a single motor neuron Skeletal muscle twitch- a single stimulus-contraction-relaxation cycle in a skeletal muscle Electrical stimulus- uses an electrical current to cause a single muscle or a group of muscles to contract Latent period- the time between the stimulation of a muscle and the start
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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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The Pros & Cons of “Ripped Muscle X” ! “Ripped Muscle X” is nothing but a dietary supplement which is pretty much similar to the various supplement available in the market today which talks about gaining lean muscles faster‚ losing weight‚ gaining extra energy as well as increasing the sexual drive in men. However‚ this claim has been made by the other supplements prevalent in the present market as well‚ this supplement talks about decreasing the level of fat in the body by increasing the metabolic
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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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