Lab 4: Skeletal Muscle Function Exercise 5: The Length-Tension Relationship Materials and Methods In this experiment I used a frog anesthetized with ms222. The frog’s skin is cut and removed from both the legs‚ the Achilles tendon is cut and the tendon and calf muscle are removed from the lower legs. The femur muscle is also cut. Attached to the legs are femur clamps which are connected to the transducer arm‚ stimulation electrodes are then positioned against the muscle. I plugged the output
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Introduction: In this lab‚ we measured the acid-base strengths of seven separate organic compounds. The lab was painless to perform‚ it consisted of adding a small amount of one of the organic compounds to a well‚ and testing the pH via testing paper. The color of the paper was then analyzed to determine what the pH of the compound was. The structures were benzenesulfonic acid‚ benzoic acid‚ benzyl alcohol‚ benzylamine‚ p-cresol‚ and p-toluidine. My initial hypothesis about the acidity/basicity
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NAME LAB TIME/DATE _ Microscopic Anatomy and Organization of Skeletal Muscle Skeletal Muscle Cells and Their Packaging into Muscles 1. Use the items in the key to correctly identify the structures described below. g; perimysium c; fascicle Key: a. b. c. endomysium epimysium fascicle fiber myofibril myofilament perimysium sarcolemma sarcomere sarcoplasm tendon 1. 2. 3. 4. 5. 6. 7. connective tissue ensheathing a bundle of muscle cells bundle of muscle cells contractile unit of muscle
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Lab Report - Tensile Strength Date : 24-Feb-2013 Experimental Data Cold Work Steel (CWS) – Specimen 1 Width (mm) Thickness (mm) I II III Average I II III Average Before 10.029 10.04 10.02 10.0297 3.06 3.07 3.07 3.0667 After 9.09 9.00 - 9.045 2.60 2.40 - 2.50 Annealed Steel (As) – Specimen 2 Width (mm) Thickness (mm) I II III Average I II III Average Before 10.24 10.13 10.10 10.16 3.07 3.08 3.09 3.08 After 8.11 8.08 - 8.095 2
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know alot about the balls grip and how it affects the length. I think i will help out football players like Qb’s to know if a better grip will help it go farther. The shape of the football‚ has an important part with the effects of how far it will go. The football is not a sphere but it has a shape of an egg.
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Muscle fatigue occurs when a muscle has a diminished ability to continue to produce force‚ usually occurring due to extensive use of those muscles‚ such as when performing extraneous activity. On a molecular level‚ there are a number of things that happen that prevent the muscle from performing more action‚ ultimately to prevent any damage from being afflicted on the muscles cells. One particular effect that most people are likely familiar
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tissue in a muscle. Epimysium (sheet of connective tissue that covers a muscle as a whole)‚ endomysium (delicate connective tissue membrane covering the highly specialized skeletal muscle fibers) ‚( perimysium (tough connective tissue surrounding fascicles) 2. Myofibrils are composed primarily of two protein filaments called _____________actin__________ and ___myosin_______________________. 3. What is a motor unit? Functional unit composed of a single motor neuron with the muscle cells it innervates
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kidshealth.org/kid/htbw/muscles.html 1. What are some examples of functions of your muscles? Lifting things 2. What are muscles made of? Elastic tissue 3. What are the 3 types of muscles? Smooth cardiac and skeletal 4. What is the difference between voluntary and involuntary control of muscles? Involuntary you have control and voluntary it does it for you 5. What are smooth muscles? Where are they found? What do they do in these areas? Are they under voluntary or involuntary
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Muscle In this experiment‚ you will explore how muscles work. You will also examine some of the properties of muscle fatigue. In this experiment‚ you will electrically stimulate the nerves in the forearm to demonstrate recruitment‚ summation‚ and tetanus. Written by staff of ADInstruments. Background The skeleton provides support and articulation for the body. Bones act as support structures and joints function as pivot points. Skeletal‚ or striated‚ muscles are connected to the bones
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Alison Heuchan 1003022301 KPE 161 Laboratory 1: Measurement of Muscular Force and Power TA: Victor Chan A) Hand Grip Dynamometer Analysis Table 1: Hand grip dynamometer results Trial 1 Trial 2 Trial 3 Peak Force (kg) Left Hand 30 kg 30 kg 26 kg 30 kg Right hand 32 kg 32 kg 30 kg 32 kg Discussion 1. In completing this test you did repeated trials. Why might scores on a test improve as you do repeated trials? One reason that test scores might improve as you do repeated trials is that there
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