The Respiratory System: Vocabulary

 the release of energy in cells by the combination of food and oxyge

organs used by water animals to obtain oxygenfrom the water

holes along the abdomen of insects used totake in oxygen

a gaseous waste product of respirationwhich is exhaled from animals

a sticky substance produced by the nose tomoisten the inhaled air and trap dust and bacteria

microscopic hairlike structures that help move mucus and other substances in the respiratory track

the tube leading to the stomach from thethroa

the tube that leads to the lungs from the throat

a flap that covers the trachea while food isswallowed; this prevents food from going into the tracheaand lungs

the part of the throat that contains the voicebox or vocal cords

the main branches of the respiratory tract leading into the lung

tiny sacs at which gas exchange takes place inthe lungs

a muscle on the underside of the lungs;when it contracts and relaxes, it sets up the conditions oflow and high air pressure that permit air to be inhaled andexhaled from the lungs