1 / 13

Physiology of Respiratory System

Physiology of Respiratory System. Respiration. Pulmonary ventilation Breathing- air movement in and out of body External respiration Oxygen loading and Carbon dioxide loading Respiratory gas transport Gases transported via bloodstream Internal respiration

zurina
Download Presentation

Physiology of 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. Physiology of Respiratory System

  2. Respiration • Pulmonary ventilation • Breathing- air movement in and out of body • External respiration • Oxygen loading and Carbon dioxide loading • Respiratory gas transport • Gases transported via bloodstream • Internal respiration • Exchange between capillaries and tissue cells

  3. Breathing • Inspiration • Diaphragm flattens creates a vacuum pulling air into the lungs • Expiration • Muscles relax and push air out of the lungs

  4. Respiratory Volumes and Capacities • Tidal Volume (TV)- volume of air moved into and out of the lungs each breath • Inspiratory reserve volume (IRV)- amount of air you can forcibly be taken in • Expiratory reserve volume (ERV)- amount of air that can be forcibly expelled

  5. Respiratory Volumes and Capacities • Residual Volume- air that cannot be expelled from the lungs • Vital capacity (VC)- total amount of exchangeable air TV + IRV + ERV • Dead Space volume- the amount of air that doesn’t make it to the lungs in a breath

  6. External Respiration • Gas exchange at the lungs • Oxygen into blood and CO2 removed from blood

  7. Gas Transport in the Blood • Oxygen forms oxyhemoglobin with hemoglobin molecules • CO2 in transported via bicarbonate in plasma

  8. Internal Respiration • Exchange of gases between blood and tissue cells • Oxygen unloaded and CO2 loaded

  9. Hypoxia • Inadequate supply of oxygen to the body tissues • Causes skin to become cyanotic

  10. Carbon Monoxide Poisoning • CO binds to the binding site that oxygen binds to on hemoglobin preventing gas transport of oxygen

  11. Respiratory Terms • Eupnea- normal respiratory rate • Hyperpnea- increased respiratory rate (exercising) • Apnea- stopped breathing • Dyspnea- difficult breathing

  12. Hyperventilation • Body’s reaction to increased levels of carbon dioxide or acids in blood

  13. Smoker’s Lungs Versus Healthy Lungs

More Related