Sympathetic nervous system

Biology Chapter 46 Homework Xitlali Sedano P.3 4/12/12 Biology Muscle Tissue Is composed of cells that contract Every function that muscle tissue performs- from creating a facial expression to keeping the eye in focus- is carried out by groups of muscle cells that contract in a coordinate fashion There are three types of muscle tissues Skeletal Muscle Moves the bones in your trunk, limbs and face Smooth Muscle Handles body functions that you cannot control consciously such as the movement of food through your digestive system Cardiac Muscle Is found in your heart It pumps blood through your muscles Nervous Tissues Contains cells that receive and transmit messages in the form of electrical impulses Makes up the human brain, spinal cord and nerves