PPT-Would you expect type 1 or type 2 fibers in heart muscle?

Adjustments to stroke volume What is a heart attack what are short and long term causes of heart attacks Heart disease Myocardial infarction Coronary arteries nourish cardiac cells Blockage due to plaques . Fast or Slow?. Skeletal muscles contain two main types of fibers, which differ in the primary mechanisms they use to produce ATP, the type of motor neuron innervation, and the type of myosin heavy chain expressed. The proportions of each type of fiber varies from muscle to muscle, from animal to animal, and from person to person.. Physiology of Training. PE 254. Muscle Physiology. Muscles consist of many . muscle fibers (cells). connected in bundles . Muscle fibers are made up of . myofibrils. Strength training increases the number of myofibrils and the size of muscle fibers = . Adjustments to stroke volume. What is a heart attack, what are short and long term causes of heart attacks?. Heart disease. Myocardial infarction. Coronary arteries nourish cardiac cells. Blockage due to plaques, embolisms, vascular spasm. Diana Mnatsakanova. Clinical Vignette. HPI/Prolonged hospitalization. 11 . day old full-term neonate . presented from OSH on 7/22/15 for heart transplant evaluation. Born at 39 weeks via elective . c-section. Skeletal – striated & voluntary. Smooth – involuntary. Cardiac - heart. The word “striated” means striped. Skeletal muscle appears striped under a microscope. . Muscles and Muscle Fiber. Muscle Fibers. Muscles are made of many individual cells called fibers. The . Fascia. connects the individual fibers to form a muscle and it separates muscles from each other. . Muscles have 3 layers of C.T.. Skeletal – striated & voluntary. Smooth – involuntary. Cardiac - heart. The word “striated” means striped. . Muscles and Muscle Fiber. Structure.     . Muscles are composed of many . Action Potentials: The Role of Motor Neurons. Motor neurons . produce motion by interacting . with skeletal muscle.. Electric signals called . action potentials. are sent along nerve cells to muscle fibers.. perfomance. enhancing drugs?. 2. Would . you consider supplements such as . Creatine. to be a performance enhancing drug? Why or why not?. The Muscular System. A&P Fall 2016. I. Overview of Muscle Tissues. Contractile. Made of contractile proteins. Cells are called fibers. Skeletal Muscle. 40% of body weight. Under voluntary control; attached to skeleton. Striated, or banded, appear. ance. Cells have multiple nuclei. Understandings. U.D.4.1: structure of cardiac muscle cells allows propagation of stimuli through the heart wall. . U.D.4.2: signals from the sinoatrial node that cause contraction cannot pass directly from atria to ventricles.. papillary muscle by scanning electron microscopy,MATERIAL AND METHODSus scrofain 4% buffered formaldehyde and dissected to expose theleft ventricle cavity. It was excised 24 papillary muscles withfor  . An introduction to myopathies and muscular dystrophy. Pathology. Dr.Amany. . Fathaddin. Objectives: . At the end of this lecture, the students should be able to:. Understand the structure of the various types of muscle fibers.. The muscular . tissue consists . of all the muscles of the body. These make up . almost 42. % of total body weight, and are composed of . long cells . known as fibers. The fibers are different lengths and vary in color from white to deep red.