click below
click below
Normal Size Small Size show me how
respitory system 1
| Question | Answer |
|---|---|
| Respiration | oxygen is obtained from environment and delivered to cells. C02 transported outside in reverse order |
| Pulmonary ventilation | phase of respiration. Exchange of air between atmosphere and Aveoli (air sacs) |
| External exchange of gases (diffusion) | 02 from air sacs to blood. C02 from blood to air sacs. |
| Diffusion | partical gases from high concentration to low. |
| Internal exchange of gases | Transport of O2 to cells and C02 away from cells by way of circulating blood |
| Cellular respiration | O2 into cells used to break down nutrients and release energy. |
| Cellular respiration (Co2) | released as waste product. |
| Respiratory regulation controls | Nervous and Chemical controls |
| Nervous control | located in medulla and pons of brain stem |
| Medulla | regulates pattern of respiration |
| Pons | normalizes levels of O2 and Co2 |
| Medulla travels to | Motor nerve fibers |
| Motor nerve fibers go to | Spinal Chord |
| Spinal Chord goes to | Phrenic nerve |
| Phrenic nerve does what? | Regulates diaphram |
| chemical control receptors are found in? | Carotid and aortic bodies |
| Chemical control responds to? | increase Co2 and decrease O2 |
| The more CO2 we have the more we want to... | Breathe |
| The less CO2 we have the less we want to | Breathe |
| Adult resp. Rate | 12-20 |
| Child RR | 20-40 |
| Infant RR | 40-60 |