Respiratory System

Across

• 1. The name given to the high pitched sounds heard when the trachea is obstructed (6)
• 3. The site in th elungs where gas exchange occurs (7)
• 4. The bluish colouration of skin caused by lack of oygenation of the blood. (8)
• 6. This type of respiration takes place when gases are exchanged between the lungs and the blood vessels (8)
• 7. A condition when breathing is difficult and laboured (8)
• 9. The muscle that separates the thoraic cavity from the abdominopelvic cavity (9)
• 10. A condition in which there is inadequate oxygen avaiable to the tissues. (7)