If 2 clenches produced the exact same force of contraction, would the EMG recording also have to be exactly the same? Why or why not?
Q: 3. If 2 clenches produced the exact same force of contraction, would the EMG recording also have to…
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Q: Does the EMG represents the AP of the muscle or the AP reached to the muscle by the nerve ? *
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Q: condi
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Q: In EMG measurement what does needle electrode measure ? * The action of the muscle
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Q: if 2 clenches produce a reponse the excat same force of contration would the emg reoding also have…
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- 3. If 2 clenches produced the exact same force of contraction, would the EMG recording also have to be exactly the same? Why or why not? 4. Assume that the force generated by 2 different arms was exactly the same. If the EMG for Arm 1 was larger than the EMG for Arm 2, what would you conclude about which muscles are stronger or weaker? Explain your rationale for your choice using what you know about what the EMG is actually recording. ent he fo er to veach m1. What are the two types of muscle movement categories? Give an example for both. 2. Describe Swammerdam's experiment and Galvani's experiment with frog legs. What did they tell us abc ard contraction? 3. What is the sliding-filament model for muscle contraction? Describe the role of actin and myosin of sarcc the model (be specific). 4. Describe how an action potential triggers muscle contraction. Know the specific molecules involved. 5. Describe the structural and functional differences between smooth, cardiac and skeletal muscles. What are ardings ine E- three types of skeletal muscle fibers and how do they differ in structure and function? Library arly Alert « Previous Next MacBook ProThe discharge from Golgi tendon organs initiated by excessive stretch ofa skeletal muscle produces :-a- inhibition of α -motor neurons of antagonistic musclesb- inhibition of γ-motor neurons of antagonistic musclesc- inhibition of α -motor neurons of the same muscled- stimulation of γ-motor neurons of the same muscle
- 5. State the structure and function of each of the following parts of a muscle fiber. (See pg. 13 of Filled In BIOL 2401 Comp Obls.) Practice with this interactive online card activity. W Sarcolemma Sarcoplasm sarcoplasmic reticulum transverse tubules ish (United States) ● Definition Platelets that cross the cell which has a lots of acetylcholine receptors ● Platelets that cross the cell which has a lots of acetylcholine receptors 6. Identify each of the following structures when given images of skeletal muscle fibers such as the one below. an entire muscle fiber myofibril myofilaments SEP 9 Function Regulates what crosses the cells that has lots of acetylcholine receptors · (smooth ER) - stores Ca+2 ions sarcoplasmic reticulum transverse tubules . cisternae MacBook Air 0 Focus1. What are the two types of muscle movement categories? Give an example for both. 2. Describe Swammerdam's experiment and Galvani's experiment with frog legs. What did they tell us about muscle contraction? 3. What is the sliding-filament model for muscle contraction? Describe the role of actin and myosin of sarcomeres in the model (be specific). 4. Describe how an action potential triggers muscle contraction. Know the specific molecules involved. 5. Describe the structural and functional differences between smooth, cardiac and skeletal muscles. What are the three types of skeletal muscle fibers and how do they differ in structure and function? « Previous Next MacBook Pro6. Explain what how the muscles cell maintains resting membrane potential and explain the two main parts of an action potential. Include type of channels and pumps 7. Describe the events at the neuromuscular....
- 2. You cut the axon of a single motor neuron innervating the biceps muscle. Which of the following is true?a. The biceps muscle will no longer be able to contractb. Only one muscle fiber in the biceps will be unable to contractc. All muscle fibers in the biceps innervated by that motor neuron will no longer be able to contractd. There will be no effect since each muscle fiber is innervated by multiple motor neurons 3. Which of the following will produce the LARGEST force of twitch contraction? Explain your answer.a. Stimulation of all alpha motor neurons in a muscleb. Stimulation of all alpha motor neurons plus all gamma motor neurons in a musclec. Both stimulations will cause a similar force of twitch contraction 4. A patient, like Ian Waterman, who has lost all muscle proprioceptor neurons. Which reflexes will be absent inthis patient? 5. You have found a new type of sensory neuron that senses ammonia. If this sensory neuron worked like thesensory neurons we studied in class, how…1. Identify the longest muscles in the body and outline the two major joint it crosses 2. In terms of ions and charges, with a well label diagram describe: a. Polarization b. Depolarization c. Repolarization 3. Name these parts of the neuromuscular junction: a. The membrane of the muscle fiber b. The end of the motor neuron c. The space between neuron and muscle cell3. There are three types of skeletal muscles we discussed in class. a. List all 3 b. All of these skeletal muscle types utilize Ca²+ at some point during excitation, excitation contraction coupling, and contraction. Describe the role of Ca²+ in stimulation to skeletal muscle excitation to contraction. c. List at least 2 other features of skeletal muscle types that you can compare across all three types. OC
- assume that the force generated by 2 different arms was exactly the same. if the EMG for arm 1 was larger than the emg for arm 2, what could you conclude about which muscles are stronger or weaker? explain your rationale for your choice using what you know about what the emg is actually recording.if 2 clenches produce a reponse the excat same force of contration would the emg reoding also have to be the same response. Why or why not21. Summarize the events that occur during the Excluation-Contraction Coupling Phase in a skeletal muscle. Practice by drawing in circled numbers in the images below to match the steps I have summarized below. Excitation-Contraction Coupling Phase: 1. When the end plate potential at the knob opens enough nearby Na VGCS on the sarcolemma, this stimulates an action potential (AP) on the sarcolemma. 2. This AP spreads down the sarcolemma and t-tubules. 3. When the AP reaches the cisterna, it twists a voltage sensitive protein called the dihydropyridine receptor (DHP receptor). The twisting physically opens a Ca*² channel called a ryanodine receptor (RyR receptor). 4. Ca¹² ions flow through the ryanodine receptor channel, out of the cisterna, and into the sarcoplasm (the cytoplasm of the skeletal muscle fiber) where they then diffuse and bind to troponin to begin the first step of muscle contraction. English (United States) CHE