PPT-Cardiac Muscle

The third category of muscle is cardiac muscle which makes up most of the heart Like skeletal muscle it is striated Like smooth muscle it can propagate action potentials from cell to cell There . Cycle: . diastole Phase. A heartbeat is a two-part pumping action that takes about a second. . This part of the two-part pumping phase (the longer of the two) is called . diastole. .. Diastole. begins as the ventricles start to relax. Soon the pressures within the aorta and pulmonary artery exceed ventricular pressures, causing the . . Digital . Laboratory. It’s best to view this in . Slide Show . mode, especially for the quizzes.. This module will take approximately . 45 . minutes to complete. .. After completing this exercise, you should be able to. Dr. Ayisha Qureshi . Assistant Professor,. MBBS, MPhil. Location of the Heart:. The Pericardium & the Pericardial Sac: . The . heart is enclosed in the double-walled, membranous . pericardial sac . Pamela BL. Introduction . The cardiac muscle forms the muscular wall of the heart that is it forms the myocardium.. Some of the cardiac muscle is also present in the walls of the aorta, pulmonary vein and superior vena cava.. Skeletal & Cardiac excitation . & contraction. Mike Clark, M.D.. NOTE. Prior to reading this PowerPoint presentation – students may want to review my PowerPoint presentation . General Electrophysiology . By Michael W. Bowers. CK-MB. 3hr, peak 12-24hr lasts 1-3 days. Troponin. 3-12 hrs, peak 12-24hr, lasts 8-21 days Trop-T and 7-14 Trop-I . What is Creatine Kinase?. What is Creatine Kinase?. Creatine kinase is an enzyme . Objectives. Histologically identify and functionally characterize each of the 3 types of muscle tissues.. Describe the organization of the sarcomere as seen in light and electron microscopy.. Identify the . Histology Lecture . Series. Larry . Johnson, Professor. Veterinary Integrative Biosciences. Texas A&M University. College Station, . TX 77843. Muscle. – Introduction. Contractivity. is one of the . 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.. Muscles and Muscle Fiber. Structure.     . Muscles are composed of many fibers that are arranged in bundles called FASCICLES. Individual muscles are separated by FASCIA, which also forms tendons. Prof. Dr. . Anna L. Kiss . Department. of . Anatomy. , . Histology. and . Embryology. Semmelweis University. Budapest . 2021. Muscle. . tissue. Function. : . contraction. Origin. : . mesoderm. Structure. . Symaptholytics. Sensitivity of receptors. Two Families:. Alpha and Beta. Based on affinity to adrenergic agonists. Alpha affinity:. epinephrine. ≥norepinephrine. >> . isoproteranol. Beta affinity:. Dr.Divya. E M. Introduction. The heart is actually two separate pumps: . . right heart. that pumps blood through the lungs. . left heart. that pumps blood through the peripheral organs. . . . . failure of the heart to pump blood adequately. Cardiac failure is manifested by two ways---. 1) . C.O.. 2) . C.O.. . . .