Histology Laszlo Vass‚ Ed.D. Version 42-0013-00-01 Lab RepoRt assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions‚ diagrams if needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor.
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There are many different things that contribute to the elasticity of muscles‚ but the focus of Aboodarda and colleagues is specifically on myofascia‚ the irregular dense connective tissue that connects and encompasses every muscle and organ in the body‚ as it is the component that is thought to have responsibility for the elasticity of muscle tissues. As a response to injury‚ among other factors‚ myofascia may bond to abutting structures and contract‚ which may cause adhesions. These adhesions may
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Experiment 2: Skeletal Muscle ABSTRACT Frog skeletal muscle is used as an animal model to study muscle contraction. The objectives of this experiment is to demonstrate the physiological responses of skeletal muscle to electrical stimuli using frog gastrocnemius‚ to understand twitch‚ summation‚ tetanus and fatigue‚ to investigate the relationship between initial tension and force of contraction‚ to explore the differences between human and frog skeletal muscle. The threshold voltage is 0.4V. The
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The atria receive blood returning to the heart from the body and the ventricles pump blood from the heart to the body. Valves allow blood to flow in one direction between the chambers of the heart. The Heart Wall The heart is composed of cardiac muscle which enable the heart to contract and allow the synchronization of the heart beat. The heart wall is divided into three layers: the epicardium‚ myocardium‚ and endocardium. * Epicardium - outer protective layer of the heart. * Myocardium
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contraction in skeletal muscle is caused by specialized intracellular thin and thick filaments‚ actin and myosin‚ sliding past each other. Contraction and relaxation of skeletal muscle bring about body movements. These body movements are voluntary and facilitated by the somatic nervous system. Near contact between somatic motor neurons and the muscle fibers are referred to as neuromuscular junctions. It is at the neuromuscular junctions that neurons are able to transmit a signal to the muscle fibers causing
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Chapter 9: Muscles and Muscle Tissue‚ Lecture Outline: I. Overview of Muscle Tissues (pp. 276–278; Table 9.1) A. Types of Muscle Tissue (p. 277; Table 9.1) 1. Skeletal muscle is associated with the bony skeleton and consists of large cells that bear striations and are under voluntary control. 2. Cardiac muscle occurs only in the heart and consists of small cells that are striated and under involuntary control. 3. Smooth muscle is found in the walls of hollow organs and
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Introduction “Eat That Frog!: 21 Great Ways to Stop Procrastinating and Get More Done in Less Time” by Brian Tracy‚ is the book I want to recommend‚ which provides 21 effective methods of conquering procrastination and accomplishing more. The reason why I choose this book is that I always want to improve my productivity. This book teaches methods in-depth details how to improve people’s efficiency in order to achieve their goals. I would first give a brief summary of the concepts and ideas brought
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There are many different muscles groups that are used during exercise. Some of the main muscle groups are hamstrings‚ quads‚ glutes‚ and pectoral muscles. There are different muscle within each muscle group. In the hamstring muscles‚ there are three main muscles: semitendinosus‚ semimembranosus‚ and biceps femoris. In the quad muscles there are four main muscles: rectus femoris‚ vastus lateralis‚ vastus intermedius‚ and vastus medialis. There are three main muscles in the glutes: gluteus maximus
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Cardiac This is an involuntary muscle‚ found solely in the walls of the heart‚ as well as in the walls of the blood vessels. This sort of muscle has similarities with the skeletal muscles‚ because it is striated. Furthermore‚ it has slight similarities to the smooth muscles‚ because its contractions are not under conscious control. On the other hand this type of muscle is highly specialised. It is under the control of the autonomic nervous system‚ however‚ even without nervous imput contractions
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Muscle Test #1 Study Guide 1. What are the primary functions of muscles? What are skeletal muscles made of? Five Skeletal Muscle Functions 1.Produce movement of the skeleton •By pulling on tendons that then move bones 2.Maintain posture and body position 3.Support soft tissues •With the muscles of the abdominal wall and the pelvic floor 4.Guard entrances and exits •In the form of sphincters 5.Maintain body temperature •When contraction occurs‚ energy is used and converted to heat
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