MUSCULAR SYSTEM CHAPTER 8. Muscles l 3 types: l Skeletal –We will concentrate mostly on this one. l Smooth l Cardiac l All three are composed of more.
Functions of the Muscular System Muscles are organs composed of specialized cells that use chemical energy stored in nutrients to contract.
Electrical Activity of Heart Presentation by: Tarique Ahmad John Frost Grant Post Ian Osborne.
Anatomy and Physiology 2211K - Lecture 4. Slide 2 – Cytology of a muscle fiber.