Breathing and the Respiratory System

The Respiratory Sytem - Key Parts Trachea Also known as the windpipe. It is kept open by rings of cartilage Alveoli Tiny air sacs that are surrounded by capillaries, where gas exchange takes place Bronchi two short branches located at the lower end of the trachea that carry air into the lungs. Bronchioles smallest branches of the bronchi, these extend into the alveoli Gas Exchange The exchange of oxygen and carbon dioxide, via diffusion, between the alveoli and capillaries How Does Breathing Happen? Press the boxes under inhalation and exhalation to select the correct word. x Inhalation Exhalation Diaphragm Muscles Contracts Relaxes Diaphragm Moves Downwards Upwards Ribcage Up and outwards Down and inwards Volume of Thorax Increases Decreases Pressure in the thorax Decreases Increases Air moves In Out Match up the two columns for Diffusion that takes place at the cells of the body and at the alveoli. Diffusion between cells in the body and capillaries (before respiration in cells) Blood contains high concentration of oxygen. Oxygen moves into the cells Cells contain high concentration of carbon dioxide. Carbon dioxide moves into the blood Diffusion takes place between a cell membrane and capillary Diffusion between the alveoli and the capillaries Oxygen moves into the blood Carbon dioxide moves out of the blood Blood contains a high concentration of carbon dioxide Diffusion takes place between alveoli and capillary (after respiration from the cells)Blood contains low concentration of oxygen Quickly match up the words to the write description! Label the image below using the following keywords:Trachea, alveoli, diaphragm, bronchi, bronchiole Trachea bronchiole bronchi diaphragm alveoli