Ged Test Audio Lessons, Audio Ged Prep Project

Life Science: Anatomy and physiology Nervous system The nervous system is made up of the brain, the spinal cord, and the nerves. Electrical impulses are sent from the brain, travel down the spinal cord, and are sent out to the nerves. There are different kinds of nerves, those that control conscious motions and those that control unconscious processes. The nerves are what sense pain as a defense mechanism for your brain. They can sense a variety of sensations, such as hot and cold, pressure, and movement, all of which help the brain process information. It is important to care for the nervous system, because once damaged, nerves cannot be repaired. Skeletal and muscular system The skeletal and muscular system work together in order to give the body shape and structure and to allow the body to move. The human body has over 200 bones, which are made up of a hard outer part and a softer inner part called marrow, which is responsible for red blood cell production and other functions of the immune system. Th