Thanks to the members, staff, volunteers and FANS who joined us for the big announcement this morning. And thanks to each and every one of you who voted and helped make Wonders of Wildlife the Number One Best New Attraction in America! 40K Views Wonders of Wildlife updated their cover photo.
Functions of Organs in Respiratory System. Respiration begins when oxygen enters into the body through the nose and the mouth. The oxygen then travels through the trachea and pharynx where the trachea divides into two bronchi.
Anatomy of the Respiratory System. The lungs are the body's major organs of breathing (respiration). The lungs are located on each side of the chest within the rib cage. They are separated by the heart and other contents of the mediastinumâthe tissues and organs of the middle chest (e.g., large blood vessels, windpipe). The lungs are shaped like an upside-down butterfly. The top of each lung (called the apex) extends into the lowest part of the neck, just above the level of the first rib. The bottom, or base, of each lung extends down to the diaphragm, which is the major breathing-associated muscle that separates the chest from the abdominal cavity.