1 / 10

Respiratory System

Respiratory System. Overview of System components Types of respiration. Respiratory System. Overview of System components Types of respiration. Four phases of Human Respiration. Ventilation – the movement of air into and out of the lungs  Inspiration : breathing in

jethro
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 Overview of System components Types of respiration

  2. Respiratory System Overview of System components Types of respiration

  3. Four phases of Human Respiration • Ventilation – the movement of air into and out of the lungs •  Inspiration: breathing in •  Expiration: breathing out

  4. Four phases of Human Respiration • Ventilation – the movement of air into and out of the lungs •  Inspiration: breathing in •  Expiration: breathing out • Externalrespiration – the exchange of O2 and CO2 between the air and the blood in the lungs

  5. Four phases of Human Respiration • Ventilation – the movement of air into and out of the lungs •  Inspiration: breathing in •  Expiration: breathing out • Externalrespiration – the exchange of O2 and CO2 between the air and the blood in the lungs • Circulation – the carrying of dissolved gasses by the blood to and from the body cells • Internal respiration – the exchange of O2 and CO2 between blood and the body cells.

  6. Organs of the Respiratory system nasal cavity nose pharynx (throat) mouth epiglottis larynx trachea cartilage rings bronchus ribs bronchiole tubes lungs diaphragm alveoli

  7. Red blood cell – Evolutionary significance • no nucleus • double concave in shape • compose of haemoglobin units • To increase surface area • so more gases, eg. O2 • and CO2 can be carried • by a single RBC. • To reduce tension and/or • friction when flowing • through capillaries.

  8. Gas Exchange Process Artery– carries O2 (red) Vein – carries CO2 (blue)

  9. Measuring Respiratory Volume Spirometer

  10. Measuring Respiratory Volume Spirometer tracing average of healthy young men:  Tidal Volume (TV) – normal quiet breathing (~500 ml of air)  Inspiratory reserve volume (IRV)– maximum inhaled air (2100–3200 ml)  Expiratory reserve volume (ERV) – maximum exhaled air (~1200 ml)  Residual volume – air in the lungs that cannot be exhaled voluntarily (~1200 ml)  Vital capacity (VC) – total exchangeable air (~4800 ml)

More Related