Date______________ Period____ Tissues Lab Directions: This lab is broken down into three sections: Epithelial Tissue‚ Connective Tissue‚ and Muscle & Nerve Tissue. For each section‚ read the background and answer any questions before you come to class‚ then in class sketch the specimens listed under each sketch circle. For your sketches‚ include the total magnification under which you viewed the specimen and be very detailed in your sketch. Epithelial Tissue Background Functions of Epithelium
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related. 7.3 Explaining the effects of aging on joints. Competency 8: The Muscular System Upon successful completion of this course‚ the student will be able to understand the muscular system by: 8.1 Describing the location‚ function(s)‚ and characteristics of each type of muscle tissue: smooth‚ cardiac‚ and skeletal. 8.2 Explaining the major events that occur during muscle fiber contraction. 8.3 Describing the sources of ATP and oxygen necessary for muscle contraction. 8.4 Describing
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REVIEW SHEET EXERCISE 2 Skeletal Muscle Physiology NAME: LAB TIME/DATE:9pm.. 4.8.11 Electrical Stimulation 1. Name each phase of a typical muscle twitch‚ and‚ on the following line‚ describe what is happening in each phase. a. Latent-stage from rest to muscle tension begins b. Contraction-At this stage the muscle reaches its peak in contraction c. Relaxation- muscle is shortened‚ returns to zero and back initial length. 2. In Activity 2‚ how long was the latent period? ___2
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The Muscular System: Skeletal Muscle Tissue 1. Fill in the characteristics of the three muscle types: Muscle Type Cardiac Shape of cell Skeletal branching chains of cells single‚ long cylindrical # of nuclei 15 um in diamter‚ small Striations yes‚ has myofibrils and sarcomers Control involuntary 100 um in size‚ big Smooth single‚ spindle shape cells 2-10 in diameter‚ medium yes‚ presences of myofibrilsno presence of myofibrils and sarcomeres voluntary
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T I V I T Y 3 Effect of Increases in Stimulus Intensity 3. Observe your tracings. How did the increases in voltage affect the peaks in the tracings? They increased with each increase in voltage. How did the increases in voltage affect the amount of active force generated by the muscle? The force increased. What is the voltage beyond which there were no further increases in active force? Maximal voltage: ____8.5____ V Why is there a maximal voltage? What has happened to the muscle at this voltage
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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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Warming Up to Improve Your Range Vocal warm up exercises follow the same principles as warm up exercises for any other physical activity that will require the intensive use of your muscles. All athletes know that an effective warm up is essential for optimal athletic performance. Many people love to sing but have a hard time hitting notes that may be out of their range and very singer has a range that is the most natural for them to sing in. With practice and vocal exercises‚ it is possible to
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A warm‚ safe‚ and caring environment allows students to “influence the nature of the activities they undertake‚ engage seriously in their study‚ regulate their behavior‚ and know of the explicit criteria and high expectations of what they are to achieve” (Queensland Department of Education‚ 2005). According to Wilen et al.‚ (2004)‚ part of building a supportive climate for learning involves teachers sharing their expectations concerning learning of content‚ achievement‚ and social behavior with
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Chapter 4 Study Guide Bio 169 • Individual body cells are specialized -Each type performs specific functions that help maintain homeostasis • Tissues are groups of cells that are similar in structure and perform a common function • Histology – study of tissues PRIMARY TISSUE TYPES: 1) Epithelial Tissue (or epithelium) is a sheet of cells that covers a body surface or lines a body cavity Forms boundaries Occurs in the body as covering and lining epithelium and glandular epithelium
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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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