Respiratory System Your system for breathing Nose Nose

Respiratory System Your system for breathing

Nose

Nose Function: • Inhales Oxygen (O 2) and Exhales Carbon Dioxide (CO 2) • Uses nose hair (Cilia) to filter dust and germs from entering the lungs • Moistens the air • Warms air Evidence: • Sneezing • Boogers • Nose Hair (cilia)

Mouth

Mouth Function: • Allows more air to come into the body Evidence: • Exercise and out of breath = breathe through your mouth • Sick and nose is clogged = breathe through your mouth

Trachea

Trachea Function: • Brings Oxygen from nose/mouth to the lungs and removes Carbon Dioxide • Lined with cartilage to keep it open and protect it. Evidence: • X-Ray • Tracheotomy

Larynx

Larynx Function: • Air vibrates the vocal cords to make noise (talking) • Voice box Evidence: • Put two fingers on voice box and hear and feel it vibrate

Diaphragm

Diaphragm Function: • A muscle that moves up to force air out of the lungs when you exhale • Contracts and moves down to let extra space in when you inhale Evidence: • Lung model • Big deep breathe • Video from station 1

Epiglottis

Epiglottis Function: • Small flap that covers the trachea when you swallow so food does not get into your lungs Evidence: • X-ray video • Coughing when something goes down the wrong pipe

Pharynx

Pharynx Function: • It is your throat • Lets air go down to your trachea • You also swallow food and water with Evidence: • Picture • Sore throat

Bronchi

Bronchi Function: Tubes to take O 2 to alveoli and remove CO 2 from alveoli to exhale Evidence: Bronchitis Animation video station 1

Alveoli

Alveoli Function: • Small sacs that send oxygen (O 2) to the cells and removes carbon dioxide (CO 2) from cells. • Where gas exchange takes place. Evidence: Animation Class demonstration