Presentation on theme: "Respiratory System. Peter Colat, 38 – February 2010 A Swiss man has broken the world record for holding one's breath underwater -- staying down for 19."— Presentation transcript:
Peter Colat, 38 – February 2010 A Swiss man has broken the world record for holding one's breath underwater -- staying down for 19 minutes, 21 seconds.
Respiratory System Lungs & Air passages Responsible for taking in oxygen and removing carbon dioxide (CO 2 ) 4 – 6 minute supply of oxygen Includes: nose, pharynx, larynx, trachea, bronchi, alveoli, and lungs
Nose 2 nostrils Nasal septum Nasal cavities –Lined with a mucous membrane –Rich blood supply –Air is warmed, filtered, and moistened
Nose Nasal cavities –Mucous helps trap pathogens and dirt –Cilia Tiny hairlike structures in nasal cavity Also trap dirt and pathogens as they enter nose so they can be pushed toward the esophagus and be swallowed –Olfactory receptors –Nasolacrimal ducts drain tears from the eye into the nose to provide additional moisture for the air
Sinuses Cavities in the skull around the nasal area Connected to the nasal cavity by short ducts Lined with mucous membrane that warms and moistens air Also provide resonance for the voice
Larynx Voice box (Adam's apple) Lies between the pharynx and trachea Vocal cords –Opening between cords is called the glottis –Vocal cords vibrate and produce sound –Tongue and lips act on the sound to produce speech
Activity Do NOT do this activity if you have asthma!!!!!! Blow up a balloon as much as possible with only one breath. Measure how big around everyone’s balloon is with the tape measure and write down the numbers next to the person’s name. Let air out of balloons and repeat two more times. Take an average of three tests.
Who was able to blow the most air into their balloon?