External&Internal Respiration

RESPIRATION INTERNAL AND EXTERNAL www.freelivedoctor.com

INTERNAL RESPIRATION ,[object Object],[object Object],[object Object],www.freelivedoctor.com

EXTERNAL RESPIRATION ,[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

EXTERNAL AND INTERNAL RESPIRATION HEART TISSUE CELL O 2 + FOOD CO 2 + H 2 O + ATP LUNGS ATMOSPHERE PULMONARY CIRULATION SYSTEMIC CIRCULATION www.freelivedoctor.com

THE RESPIRATORY SYSTEM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

Alveoli ,[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

Alveoli and Pulmonary Capillaries www.freelivedoctor.com

RESPIRATION The Mechanics of Breathing www.freelivedoctor.com

PRESSURES AT REST ,[object Object],[object Object],[object Object],www.freelivedoctor.com

BAROMETRIC PRESSURE Mercury Hg VACUUM WEIGHT OF COLUMN OF AIR = FORCE FORCE/AREA = PRESSURE Sea Level 760 mm www.freelivedoctor.com

REST PRESSURES 760 MM Hg 756 mmHg Lungs Intrapleural pressure Airways Atmosphere Pleural Sac Thoracic Wall www.freelivedoctor.com

THE TRANSMURAL PRESSURE GRADIENT INFLATES THE LUNGS ,[object Object],[object Object],[object Object],www.freelivedoctor.com

AIR IS A COMPRESSABLE GAS WHICH OBEYS BOYLE’S LAW ,[object Object],[object Object],[object Object],www.freelivedoctor.com

INSPIRATION ,[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

INSPIRATION 760 mm Hg 754 mmHg Lungs Intrapleural pressure Airways Atmosphere Pleural Sac Thoracic Wall 759mm Hg www.freelivedoctor.com

EXPIRATION ,[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

EXPIRATION 760 mm Hg 756 mmHg Lungs Intrapleural pressure Airways Atmosphere Pleural Sac Thoracic Wall 761 mm Hg www.freelivedoctor.com

MUSCLES OF INSPIRATION ,[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

MUSCLES OF EXPIRATION ,[object Object],[object Object],www.freelivedoctor.com

AIRWAY RESISTANCE ,[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

Resistance and Disease ,[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

LUNG VOLUMES ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

LUNG VOLUMES www.freelivedoctor.com

LUNG VOLUMES: RELATIONSHIPS ,[object Object],[object Object],[object Object],[object Object],www.freelivedoctor.com

External&Internal Respiration

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External&Internal Respiration