Great job once again on answering the question about how muscle action relates to the movement. I think maybe I took it to the extreme‚ I went on about agonist‚ synergist‚ and antagonist muscles. I wasn ’t sure if I should add the levers too. It appears as though you explained every type of muscle movement and gave an example of each. I went into flexion at the elbow and discussed that the agonist is the main muscle mover‚ the antagonist does the opposite‚ and the synergist is the helper. However
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hysioEx 9.0 – Exercise 2: Skeletal Muscle Physiology Name: Chart 1: Latent Period Results Voltage Active force (g) Latent period (msec) 0.0 0.00 XXXXXXXXXX 3.0 1.04 XXXXXXXXXX 4.0 1.32 2.40 6.0 1.65 2.40 8.0 1.81 2.40 10.0 1.81 2.40 Chart 2: Effect of Stimulus Voltage on Skeletal Muscle Contraction Voltage Active force (g) 0.0 0.00 0.2 0.00 0.8 0.02 1.0 .15 1.5 .43 2.0 .66 2.5 .87 3.0 1.64 3.5 1.19 4.0 1.32 4.5 1.42 5.0 1.51 5.5 1.59 6.0 1.65 6.5 1.70 7.0 1.74 7
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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? Leveled line 2. What is the threshold voltage? .8 V 3. How does the graph generated at the threshold voltage differ from the graphs generated at voltages below the threshold? They were Level Activity
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Exercise 4: Endocrine System Physiology: Activity 1: Metabolism and Thyroid Hormone Lab Report Pre-lab Quiz Results You scored 100% by answering 6 out of 6 questions correctly. 1. Which of the following statements about metabolism is false? You correctly answered: d. All of the energy from metabolism is ultimately stored in the chemical bonds of ATP. 2. Thyroxine is You correctly answered: c. the most important hormone for maintaining the metabolic rate and body temperature. 3. Thyroid-stimulating
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EXERCISE 2: Skeletal Muscle Physiology Student Name: ___________________________ Student ID#: _____________________ Student instructions: Follow the step-by-step instructions for this exercise found in your lab manual and record your answers in the spaces below. Submit this completed document by the assignment due date found in the Syllabus. Rename this document to include your first and last name prior to submitting‚ e.g. Exercise2_JohnSmith.doc. Please make sure that your answers
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REVIEW SHEET EXERCISE 2 Skeletal Muscle Physiology NAME: LAB TIME/DATE: Electrical Stimulation 1. Name each phase of a typical muscle twitch‚ and‚ on the following line‚ describe what is happening in each phase. a. b. c. 2. In Activity 2‚ how long was the latent period? __________ msec Describe the chemical changes that are occurring during this period. The Graded Muscle Response to Increased Stimulus Intensity 3. From Activity 3‚ describe the effect of increasing
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Review Sheet Exercise 5 Cardiovascular Dynamics NAME LAB DATE/TIME Vessel Resistance The following questions refer to Activity 1: Studying the Effect of Flow Tube Radius on Fluid Flow. 1. At which radius was the fluid flow rate the highest? 6.0 mm 2. What was the flow rate at this radius? 1017.4 mmHg 3. Describe the relationship between flow rate and radius size. It was direct 4. What happens to blood vessels in the body if increased blood flow is needed? They
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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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Review Sheet Exercise 3 Neurophysiology of Nerve Impulses Eliciting (Generating) a Nerve Impulse 1. Why don’t the terms depolarization and action potential mean the same thing? They require different things. Action potential requires depolarization and repolarization. Depolarization doesn’t require anything. 2. What was the threshold voltage in Activity 1? 3.0V 3. What was the effect of increasing the voltage? How does this change correlate to changes in the nerve? The action potential
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Physiology Exercise 3 Activity 1 1. Explain why increasing extracellular K+ reduces the net diffusion of K+ out of the neuron through the K+ leak channels. Your answer: By increasing the extrecellular K+ the net diffiusion of K+ out the neuron through the eak channels is reduced. This is caused by the flow of ions following the concentration gradient of traveling from an area of high concentration to areas of low concentration. The higher concentration gradient would result in a reduced diffusions
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