Epimysium- covers the entire muscle Perimysium- covers..? Endomysium- covers the individual muscle fibers Sarcomere- smallest contractile element of muscle fiber‚ extends from z-line to z-line Myofilament- responsible for contraction Striated- the color variations on the muscle fiber. Has to do with the amount of protein and the way it reflects light. Myosin- globular protein Bulb like heads come in contact with the active sites on actin Active sites are not exposed when in the resting position
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9. Describe the arrangement of muscle fibers to make a muscle. Cell membrane called sarcolemma and cytoplasm called sarcoplasm. Arranged with their long axes in parallel. Each fiber is sheath in connective tissue with groups of adjacent fibers bundled together in units called fascicles. 10. Define the terms sarcolemma‚ sarcoplasm‚ myofibrils‚ sarcoplasmic reticulum‚ terminal cisternae‚ t-tubules. Sarcolemma is the cell membrane of a muscle fiber‚ sarcoplasm is the cytoplasm‚ myofibrils
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LABORATORY REPORT Activity 2: Twitch Contractions and Summation PREDICTIONS Effect of Muscle Fiber Length on Contraction 1. As muscle fiber length increases: contraction force increases‚ becoming maximum at an optimal length‚ then decreasing at longer lengths. Effect of Stimulation Frequency on Contraction 2. As the frequency of stimulation increases‚ the force of contraction: increases. MATERIALS AND METHODS Measurement of Threshold Stimulus 1. Dependent Variable: contraction force
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Manufacturing Polyester fibers‚ the synthetic fibers‚ are long chain polymers derived from coal‚ air‚ water‚ and petroleum. They are formed through chemical reaction between an acid and alcohol. In this reaction‚ two or more molecules combine to make a large molecule whose structure repeats throughout its length. These molecules are very stable and strong. There are variations in the compositions and therefore in the properties of polyester fibers. Types of Polyester The polyester fibers are generally
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Understanding Your Fats and Fiber There are four major dietary fats that we in the foods that we may eat‚ transfats‚ saturated fats‚ monounsaturated fat and polyunsaturated fat. Eating some of these fats may raise the cholesterol in our bodies. The fats that are considered to be bad fats that we eat are trans fats and saturated because they raise the bad cholesterol (LDL) in our bodies. Monounsaturated fats and polyunsaturated fats are know to be the good fats and are know to help reduce bad
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• Cost and Ease of Installation • Resistance to Environmental Conditions 4 :Categories • Bounded/Guided Media • Unbounded/Unguided Media 5.Bounded/Guided Media • Coaxial Cable • Twisted Pairs Cable • Fiber Optic Cable 6.Conclusion TRANSMISSION MEDIUM Transmission medium is the physical path between transmitter and receiver in a data transmission system.The characteristics
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a particular paint chip Critical Thinking Questions 1. What are some of the challenges for forensic scientists in dealing with fiber evidence? A challenge for forensic scientists in dealing with fiber evidence is that they have to narrow down the likely source of the fibers in order for the fiber evidence to become important. It is often impossible to link a fiber found at a crime scene with the specific item that it came from‚ since there is a mass production of goods today‚ and since
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stratified squamous B) transitional C) simple cuboidal D) simple squamous 5. Which of these is not considered connective tissue? A) adipose B) blood C) muscle D) cartilage 6. Matrix is composed of ________. A) fibers and ground substance B) cells and fibers C) all organic compounds D) ground substance and cells 7. The first step in tissue repair involves ________. A) proliferation of fibrous connective tissue B) formation of scar tissue C) inflammation D) replacement
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suppressed. Optical amplifiers are important in optical communication and laser physics. There are several different physical mechanisms that can be used to amplify a light signal‚ which correspond to the major types of optical amplifiers. In doped fiber amplifiers and bulk lasers‚ stimulated emission in the amplifier’s gain medium causes amplification of incoming light. In semiconductor optical amplfiers (SOAs)‚ electron-hole recombination occurs. In Raman amplifiers‚ Raman scattering of incoming
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• Recorded intake of protein‚ carbohydrates‚ and lipids Protein day 1: 108 grams - Carbohydrates day 1. 102 - Lipids Protein day 2: Protein day 3: o Which foods in your recorded daily intake provide protein? Which provide carbohydrate? Which provide lipids? The foods that I recorded in the last three days that include protein are Eggs‚ Bacon‚ Tomatoes‚ Kale‚ Fish‚ Broccoli‚ protein bar and protein shakes. The foods that provided Carbohydrate are‚ Eggs‚ Tomatoes‚ fish oil dietary
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