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Unformatted text preview: Ch. 2-Anatomy and Physiology of Body Systems 1 Anatomical Terminology Anatomical
The terms of position include Anatomical position —The victim is standing erect, arms down to the sides, palms facing you. “Right” and “left” refer to the victim’s right and left. Supine position —The victim is lying face up (on the back) Prone position —The victim is lying face down (on the stomach) Lateral recumbent position —The victim is lying on the left or right side. This is also known as the recovery, or coma, position. 3 The Body’s Framework The Skull Spinal Column Thorax Pelvis Lower Extremities Upper Extremities Joint Movements The Muscular System The
1. Skeletal muscle, or voluntary muscle, is under a person’s conscious control. 2. Smooth muscle, or involuntary muscle, is muscle over which a person has little or no conscious control. 3. Cardiac muscle forms the walls of the heart and is made up of a cellular mesh. The Respiratory System The ventilation The act of breathing air into and out of the lungs inhalation The act of breathing in (inspiration), or the drawing of air or other gases into the lungs inspiration The act of breathing in (inhalation) Nervous System Nervous central nervous system The part of the nervous system that consists of the brain and the spinal cord peripheral nervous system Structures of the nervous system (especially nerve endings) that lie outside the brain and spinal cord Functional divisions: voluntary nervous system influences voluntary movements throughout the body autonomic nervous system, a system not directly under the influence of the brain, influences the involuntary muscles and glands. sympathetic nervous system parasympathetic nervous system The Skin The Protects internal organs from injury Prevents dehydration Protects against invasion by microorganisms Regulates body temperature Aids in elimination of water and various salts Acts as the receptor organ for touch, pain, heat, and cold Epidermis contains cells that give the skin its color Dermis the second layer, contains the vast network of blood vessels ...
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This note was uploaded on 02/17/2011 for the course HK 280 taught by Professor Trembath during the Fall '07 term at Purdue University.
- Fall '07