Atlas of Skeletal Dysplasias

Abstract

This book is a study guide to the anatomy and actions of human skeletal muscles. It is designed for use by students of physical therapy, chiropractic, medicine, nursing, phys- ical education, and other health-related fields. It also serves as a compact reference for the practicing professional. The first chapter presents labeled line drawings of the skeleton, which include all structures that are used in de- scribing origins and insertions in the later chapters. A master numbering system is used so that each structure is labeled with the same number in all drawings. The second chapter describes the various movements of the body. In chapters three through nine the origin, insertion, action, and innervation of the skeletal muscles are de- scribed and each muscle is presented on a separate page with a line drawing. The spinal cord level of the nerve fibers that innervate each muscle are included in parentheses after the name of each nerve. The drawings include the following important features: 1. Bones and cartilage containing muscle attachment sites are shaded 2. Adjacent structures are shown 3. Muscle fibers are drawn by direction 4. Muscle fibers are shown on the undersurface of bone and cartilage as dashed lines 5. Tendons and aponeuroses are shown These features aid in visual orientation and under- standing of the action of the muscles. Since our primary goal is to describe the muscles moving the skeleton we have not described the muscles of the perineum, eye, tympanic cavity, tongue, larynx, pharynx, or palate.