1 / 12

Respiratory System

Respiratory System. Chapter 13. Functions. Ventilation -breathing External Respiration –gas exchange within lungs Gas Transport by working with Cardiovascular System Internal Respiration –gas exchange within tissues. Upper Respiratory Passages. Purify air Warm air Humidify air

latham
Download Presentation

Respiratory System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Respiratory System Chapter 13

  2. Functions • Ventilation -breathing • External Respiration –gas exchange within lungs • Gas Transport by working with Cardiovascular System • Internal Respiration –gas exchange within tissues

  3. Upper Respiratory Passages • Purify air • Warm air • Humidify air • Paranasal sinuses lighten cranium, produce mucous

  4. Pleura • Parietal pleura • Pleural cavity • Visceral pleura • Pleura stick together to prevent atelectasis • pleurisy

  5. Pressure Within Lungs

  6. Respiratory Volumes • Tidal Volume (TV) • Inspiratory Reserve volume (IRV) • Expiratory Reserve Volume (ERV) • Residual Volume • Vital Capacity (VC) • TV+IRV+ERV • Dead Space Volume

  7. Respiratory Sounds • Bronchial Sounds • Breathing Sounds • Crackle • Wheezing • Rales

  8. Gas Transport • Higher concentration of O2 in lungs • Higher concentration of CO2 in Tissues • Levels of CO2 change little compared to O2 due to solubility

  9. Gas Transport • Oxygen transported via hemoglobin • Carbon dioxide transported 3 main ways • 70% bound to Bicarbonate ion • 20-30% bound to Hemoglobin • 7-10% in blood plasma • Blood Buffering system keeps pH of blood stable • Hypoxia, cyanotic, CO poisoning http://themedicalbiochemistrypage.org/hemoglobin-myoglobin.php

  10. Control of Respiration • Phrenic nerve • Regulatory centers in Pons and Medulla • Voluntary Control • Emotional Control • Chemical Controls • Amount of CO2, H+, metabolic wastes in blood • Amount of H+ in blood supply to brain

  11. Respiratory Disorders • Hyperventilation • Apnea • COPD • Dyspnea • Chronic Bronchitis • Emphysema • Asthma • SIDS

More Related