| A | B |
|---|
| Respiration | The gaseous exchange between a living organism and its environment |
| External Respiration | Breathing |
| Internal Respiration | Oxygen + Sugar Makes Energy + water+ Carbon Dioxide (takes place in the cells) |
| Respiration Stages | Inhalation and Exhalation |
| Inhalation | Breathing in-Lungs take in air- chest cavity expands-diaphragm flattens-intercostal muscles rise up and out- less pressure |
| Exhalation | Air is pushes out of lungs- chest cavity smaller- more pressure- diaphragm becomes domed shaped |
| Medulla Oblongata | The part of the brain that controls the rate of breathing- involuntary action |
| Nasal Conchae | 3 bones in the nasal cavity |
| The functions of the nose | cilia- filters the air, mucus- moistens the air, blood warms the air |
| Mouth | emergency air inlet |
| Pharynx | Throat |
| tonsils and adnoids | Lymphatic tissue that can become enlarged and infected- located in the pharynx |
| Eustachian Tubes | tubes that lead from the throat to the ears |
