A Cosmic Gift â Hologram // Limited Edition of 100 âCosmic Hazeâ & 300 Black Vinyl LPs / 3D Holographic Etchings / SlyVinyl Exclusive!
1 (The nose and mouth make up the first part where air enters your body. 2  The trachea, or windpipe, is the second part and it delivers air to the lungs. 3  Your lungs are the third part where oxygen is absorbed by the blood, which brings it to the rest of the body. 4  Finally, the diaphragm is the fourth part.
MAJOR HUMAN BODY SYSTEMS. Respiratory System Your respiratory system provides the energy needed by cells of the body. Air is breathed in through the nasal cavity and/or mouth and down through the throat (the pharynx). The throat has three parts-the nasopharynx, the oropharynx, and the laryngopharynx.our digestive system consists of organs that break down food into components that your body uses for energy and for building and repairing cells and tissues. Food passes down the throat, down through a muscular tube called the esophagus, and into the stomach, where food continues to be broken down.