1. Dr. ANAND SRINIVASAN

2.  Collection of muscle fibers supported by connective tissue  Made of actin & myosin  Mesodermal origin  Special terms:  Plasma membrane  sarcolemma  Cytoplasm  sarcoplasm  Smooth endoplasmic reticulum  sarcoplasmic reticulum  Mitochondria  sarcosomes

3. MUSCLE SkeletalCardiacSmooth

4.  Three connective tissue layers :  Epimysium  Perimysium  Endomysium

5.  Each muscle fiber is an elongated unbranched cylindrical cell.  Has many flat nuclei located beneath sarcolemma.  Has alternative dark A and light I bands with Z line intersecting I band.  Each muscle fiber made of myofibrils.

9.  Non striated, elongated and spindle shaped  Found in the walls of hollow viscera e.g. GIT, blood vessels, uterine tube etc.,

10.  Presence of cross striations & branching pattern  Nuclei in the center.  Presence of “intercalated discs”

12.  Myasthenia Gravis  Reduction in the number of Acetyl Choline receptors.  Duchenne Muscular Dystrophy  Mutation of “Dystrophin” protein located in the sarcolemma

13.  Chapter 6 – Microanatomy Workbook, RAKMHSU