REVIEW SHEET EXERCISE 4 Endocrine System Physiology NAME: LAB TIME/DATE: Metabolism The following questions refer to Activity 1: Determining Baseline Metabolic Rates. 1. Which rat had the fastest baseline metabolic rate? The normal rat had the fastest baseline metabolic rate. 2. Compare the baseline metabolic rates for the thyroidectomized rat and the normal rat and explain your results. The normal rat’s baseline metabolic rate was faster than that of the thyroidectomized rat’s
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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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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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AP-2 Lab 01 – Lab Report Name: Shamika C. Dent Section: AP 2 – 131 – Fall 2010 Laboratory Report: Exercise 1: The Endocrine System Purpose: What is the purpose of this exercise? Is there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. 1. Identify the major endocrine glands and other organs containing endocrine cells on models and diagrams (glands listed below). 2. Identify the major endocrine glands in the cat (glands
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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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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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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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Exercise 10: Acid-Base Balance: Activity 1: Hyperventilation Lab Report Pre-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The fastest compensatory mechanism for maintaining pH homeostasis in the human body is You correctly answered: c. the chemical buffering system. 2. An increase in hydrogen ion concentration would You correctly answered: d. decrease pH. 3. The amount of carbon dioxide in the blood is measured in You correctly answered: b. mm Hg. 4. The reaction
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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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MUSCLE PHYSIOLOGY Exercise 11 Acuesta‚ Patrisha Afalla‚ Antonette Hanns Beo‚ Jellie Ayz Bustamante‚ Jemimah Keziah Soriano‚ Jhon Cris Introduction • Muscle Contraction - the shortening of the muscle as a result of tension generated by muscle fibers; -Regulated by the production of calcium ions‚ stimulated via thermal‚ chemical‚ mechanical‚ and electrical stimuli Objectives BE ABLE TO: 1. Make a muscle-femur preparation; Set up Kymograph; Demonstrate muscular contraction; Differentiate
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