Introduction: In this lab‚ I will study how muscles contract‚ what makes muscles contract‚ different types of muscle contraction‚ and learn about how resistance affects muscle contraction. I will define Key Terms that describe what will occur in the experiments; I will conduct an experiment for each Activity and provide all resulting Data as well as answer Questions from each Activity. I will then provide a short Summary for what I learned in each Activity. Key Terms: Recruitment (or Multiple
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enzyme activity in skeletal muscle‚ particularly the activity of lactate dehydrogenase (LDH). LDH is a glycolytic enzyme which converts pyruvate to lactate in the following equation: LDH Pyruvate+ NADH ------------ Lactate + NAD The reaction above can move in both directions‚ forward (favored by Type II skeletal muscle) and reverse (favored by Type I skeletal muscle and the heart). Enzyme
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Virtual lab 9 Activity 2: Determining the Latent Period 1. How long is the latent period? 2.78 msec. 2. What occurs in the muscle during this apparent lack of activity? Ca++ is being released from the sacroplasmic reticulum and filament movement is taking up slack. Activity 3: Investigating Graded Muscle Response to Increased Stimulus Intensity 1. Use your graph to answer and note that the dot in the graph turns red when you select that line in the table. What is the minimal‚ or threshold
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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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Influence of dietary state and insulin on myocardial‚ skeletal muscle and brain [18F]fluorodeoxyglucose kinetics in mice Michael C Kreissl1‚2*‚ David B Stout3‚ Koon-Pong Wong1‚ Hsiao-Ming Wu1‚ Evren Caglayan4‚ Waldemar Ladno3‚ Xiaoli Zhang1‚ John O Prior1‚5‚ Christoph Reiners2‚ Sung-Cheng Huang1 and Heinrich R Schelbert1 Abstract Background: We evaluated the effect of insulin stimulation and dietary changes on myocardial‚ skeletal muscle and brain [18F]-fluorodeoxyglucose (FDG) kinetics and
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Worksheet No. 1 Parts of the Skeletal System 1. ____________________ 2. ____________________ 3. ____________________ 4. ____________________ 5. ____________________ 6. ____________________ 7. ____________________ 8. ____________________ 9. ____________________ 10. ___________________ Worksheet No. 2 Injury to the Skeletal System Accidents may happen. There are some activities that you do which can cause injury to the Skeletal System. 1. What accidents
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Samantha Meyer BIOL 303 Systems Lesson Plan Title: Skeletal System Grade Level: 2nd Grade Purpose: The purpose of this activity is to learn about the skeletal system and where the bones are located in the body. Objective: Students will be able to create their own model of the skeletal system and label a model of the skeletal system. Materials: Real life skeleton model Smart board www.brainpop.com (skeleton) Skeleton diagram worksheet (1 per student) Skeleton model project cut outs (1 per
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The Skeletal System provides us with many important functions. It provides us with the shape and form for our bodies as well as supporting‚ protecting‚ allowing our body to move freely‚ producing blood for the body‚ and storing minerals. The Skeletal System is the system of our body that gives our body its physical shape and with the help of the Muscular System it keeps us moving and makes us able to do tasks that we don’t think about like raising our leg to kick a football or using our legs to boost
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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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Exercise 2: Skeletal Muscle Physiology Worksheet Single Stimulus Activity 1: Identifying the Latent Period 1. How long is the latent period? 2.78 msec 2. Does the latent period change with different stimulus voltages?No Activity 2: Identifying the Threshold Voltage 1. What do you see in the Active Force display?I saw a very slight peak at .8 2. What is the threshold voltage? .8 V 3. How does the graph generated at the threshold voltage differ from the graphs generated
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