M09_ZAO2177_01_SE_CH09.QXD 3/4/11 2:08 AM Page 143 R E V I E W S H E E T EXERCISE NAME ________________________________ LAB TIME/DATE _______________________ A C T I V I T Y 1 9 Renal System Physiology The Effect of Arteriole Radius on Glomerular Filtration 1. What are two primary functions of the kidney? ____________________________________________________________ __________________________________________________________________________________________________ 2. What are the components
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1. Discuss the relationship between distribution of muscle fiber type and performance. How might exercise training modify or change a person’s fiber-type distribution? Skeletal muscles contain multiple fiber types that are distinguished by their different myosin ATPase speed‚ and the development of their SR. The two main fiber types are type I and type II fibers. Type II fibers have a faster ATPase and a more developed SR than type I fibers. Type II fibers are also part of a larger motor unit‚
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Review Sheet Exercise 11 Blood Analysis NAME LAB DATE/TIME Hematocrit Determination The following questions refer to Activity 1: Hematocrit Determination. 1. List the following values from Chart 1: Hematocrit value for healthy male living at sea level in Boston = 48 Hematocrit value for healthy female living at sea level in Boston = 44 2. Were the values listed in question 1 within normal range? YES 3. Describe the difference between the male and the female hematocrit
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A&P muscles Study Guide What is the role of tropomyosin in skeletal muscles? Which muscle cells have the greatest ability to regenerate? The strongest muscle contractions are normally achieved by ________. What would be recruited later in muscle stimulation when contractile strength increases? Excitation-contraction coupling requires what substances? What is the function of myoglobin and where is it found? What structure in skeletal muscle cells functions in calcium storage
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Anatomy Review: Skeletal Muscle Tissue Graphics are used with permission of: Pearson Education Inc.‚ publishing as Benjamin Cummings (http://www.aw-bc.com) Page 1. Introduction • Skeletal muscle cells have unique characteristics which allow for body movement. Page 2. Goals • To compare and contrast smooth muscle cells‚ cardiac muscle cells‚ and skeletal muscle cells. • To review the anatomy of skeletal muscle. • To examine the connective tissue associated with the skeletal muscle. • To
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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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The muscle physiology of skeletal muscle was observed by using electrical‚ physical‚ and neural stimulations of an isolated gastrocnemius muscle from Rana pipiens. The gastrocnemius receives signals from the action potentials of the sciatic nerve. The muscle contraction is caused by the binding of a neurotransmitter once the action potential reaches the neuromuscular junction. Stimulation of the muscle and the sciatic nerve allows for recording and measuring of these properties. We observed twitch
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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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Lab 3 – Skeletal Muscle Physiology Introduction Skeletal muscles are composed of hundreds to thousands of individual cells‚ each doing their share of work in the production of force. As their name suggests‚ skeletal muscles move the skeleton. Skeletal muscles are remarkable machines; while allowing us the manual dexterity to create magnificent works of art‚ they are also capable of generating the brute force needed to lift a 100-lb. sack of concrete. When a skeletal muscle from an experimental
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Topic 1 - Muscular System: Anatomy Review: Skeletal Muscle Tissue 1. Fill in the characteristics of the three muscle types: Muscle Type Cardiac Skeletal Smooth Shape of cell Branching Long‚ cylindrical Elongated # of nuclei Uninucleate Multinucleate Uninucleate Striations Yes Yes No Control Involuntary Voluntary Involuntary 2. What attaches muscles to bone? Tendons. 3. The whole muscle is composed of muscle cells (fibers) grouped in bundles called fascicles. 4. Name the connective
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