Cardiac muscle

The heart is the most important cardiac muscle in the body. The heart is located right under the rib cage, right between your lungs and to the left of the breast bone. The heart is made up of four chambers, there are two upper chambers called atria, and two lower chambers called ventricles. The right side of your heart receives oxygen poor blood and the left side of your heart receives oxygen rich blood. Your blood flows through your heart and lungs in four different stages, each stage is beneficial

differences between the cardiac and skeletal muscle. One of the main similarities is the fact both muscles are categorized as striated muscles. Striations are the main key to identifying the skeletal and cardiac muscle. The striated muscles are attached to the bone of the cells in which they produce all the movement in the body. Another similarity is that they can be electrically conducted because they both contain t-tubules. The t-tubules are the plasma membrane of both muscles. They allow depolarization

Effects of Different Stresses on Frog Cardiac Muscle Brett Cashion Laboratory Partners: Michael Comisac, Haylee Kaushaar, Jessica Self, and Kaitlyn Strosnider April 22, 2015 Department of Biological and Environmental Sciences California University of PA BIO 318, Human Physiology Introduction: The heart is made up of cardiac muscles that are striated, involuntary, and contains intercalated disks which consist of gap junctions that send electrical signals to the heart. In order for

Brief: Skeletal Muscle, Cardiac Muscle & Smooth Muscle Image 1.0 Anatomy Of Smooth Muscle Table – Basic Muscle Comparison 5 Note: See Appendix For Further Detail. Image 1.1 Muscle Cell Variations Image 2 Stimulus Transmission Image 3 Axon Junction 6 Events At The Neuromuscular Junction And Of A Synaptic Transmission Skeletal Muscle In More Detail Including: Fascia Epimysium, Perimysium, Endomysium, Aponeurons 7 Periosteum Image 4: Structure Of A Muscle Fibre Myofibres

Activity 1: Investigating the Refractory Period of Cardiac Muscle Results: Briefly describe what happened when you applied the electrical stimuli to the heart. (1 mark) RESULTS: Applying single shocks in succession or multiple stimuli to deliver shocks at 20 stimuli/sec led to the formation of successive double peaks with a period of pause between them. This doublet is the normal systole closely followed by the extrasystole resulting from external stimulation, and then compensatory pause so the heart

specialty in sports medicine and have been asked to prepare a 6-8 page document explaining normal and pathological cardiac muscle hypertrophy in athletes for the Canadian Olympic Committee. Be sure to indicate the difference between LV Hypertrophy (Athlete’s Heart) and Hypertrophic Cardiomyopathy as it relates to the underlying causes and the possible pathophysiological consequences to cardiac function. 1. http://onlinelibrary.wiley.com/doi/10.1111/j.1440-1681.2007.04585.x/epdf 2. Zak, Radovan, ed. Growth

consists of three different kinds of muscles: skeletal, cardiac and smooth muscle. Skeletal muscle, which is the primary focus of this lab, is made up of much smaller muscle fibers. These muscle fibers have smaller units called myofibrils followed by the smallest contractile unit of a muscle fiber called the sarcomere. Furthermore, the sarcomere is composed of two filament types- thick filaments, called myosin and thin filaments called actin. In order for muscle contraction to occur, these two filaments

SELETAL, CARDIAC, AND SMOOTH MUSCLE: Skeletal Muscle Structure: skeletal muscles cells are like long fiber structures, That contain many nuclei and are subdivided into smaller structures that are called “myofibrils”. The “Myofibrils” are created of two kinds of “myofilaments”. Thin filaments are made of two strands of the protein-actin and one strand of a regulatory protein coiled with each other. Thick filaments are staggered arrays of “myosin molecules”. * Organization Units of skeletal muscle. Filaments

Cardiomyocytes or cardiac muscle cells are vital for the heart function despite their numbers being considerably lower than other types of cells in cardiac tissue. The loss of cardiomyocytes and its insufficient regeneration is the major contributor in the pathogenesis of many cardiovascular diseases, including myocardial infarction, cardiac fibrosis and heart failure (Bergmann et al., 2009; Porrello et al., 2011b; Mollova et al., 2013). In fact, the injury induced adult myocardial tissue remodeling

A heart is made from Cardiac muscles which are only found in the heart, this muscles share similarities with skeletal muscles, but they also have special properties which include automaticity and unlike skeletal muscles, the heart does not have to be stimulated by nerves to contract. This is because action potentials begin spontaneously in the pacemaker region in the right atrium and spread through the ventricles in an automatic, rhythmic cycle in the heart all cardia cells can depolarise and repolarise