the muscles it innervates. Each muscle will respond to one motor nerve which contains axons that can have up to 100’s of neurons that branch into terminals that form NMJ with ONE fiber. When a motor neuron sends an action potential‚ it will cause all of the connected muscle fibers to contract. The number of muscle fibers per motor unit varies from thousands to only a few‚ and the size varies based on the type of control that muscle has. Muscles that exert fine control‚ such as the muscles controlling
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the patient be instructed on the importance of a high fiber diet. A high fiber diet keeps the stool soft and adds bulk allowing it to pass easily. Since many people may not know what foods are high in fiber‚ the recovery room nurse should be aware and be able to educate them on how to make good choices‚ and foods to add increased fiber to their diet. This also can benefit the physician by nursing staff providing this valuable education. Some fiber rich foods include fruits such as berries‚ apples and
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(a.) The region of a myofibril between two successive Z discs is a sarcomere. It averages 2 micrometers long and is the smallest contractile unit of a muscle fiber. It contains an A band flanked by half an I band at each end. Within each myofibril‚ the sarcomeres align end to end like boxcars in a train. (b) In a relaxed muscle fiber‚ the thin and thick filaments overlap only at the ends of the A band. The sliding filament model of
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evidence. When they got back to the crime lab‚ they gave the apple in an evidence bag to the forensic scientist. Then they left and the scientist looked over the apple. She took it out of the bag while wearing gloves‚ and noticed some hairs and/or fibers on it when she looked at it under the microscope. She then looked at the list of suspects and the name of the victim that she was handed earlier by a CSI agent. The names of the suspects were Bashful‚ Doc‚ Dopey‚ Happy‚ Sleepy‚ Sneezy‚ Grumpy‚ The
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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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Chapter 10 Review -Know the functions and characteristics Skeletal Muscle Tissue. -Know and understand the anatomy of skeletal muscle tissue‚ example: fascicles and muscle fibers‚ sarcoplasm‚ SR‚ sarcomere‚ etc. -Know the types of connective tissue components of skeletal muscle. -Know where each connective tissue component is located. -Know the difference between tendons and aponeurosis. -Understand the Blood vessels and nerves of skeletal muscle tissue. -Understand the difference between
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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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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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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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• 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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