Respiration 🫁 Flashcards
How much O2 per 100 ml of blood ?
20 ml
How much O2 is delivered per 100 ml of blood in normal conditions
5 ml
How much oxygen is delivered per 100 ml of blood in vigorous condition?
15 ml
How many times a healthy human breathes in 1 minute ?
12 - 16 times
Instrument for measuring the volume of oxygen in breathing?
Spirometer
Cartilage rings are present up to
Initial bronchiole
Part of the respiratory area
Respiratory bronchiole , alveolar ducts , alveoli
Total thickness between the exchange membranes ( alveolar and endothelium )
Less than a milimeter
Chemosensitive areas for regulation of co2 and H+ ions are present in
Carotid artery, aortic arc , near rhythm centre.
Important thing about emphysema?
Alveolar wall damage , decreased surface area for gas exchange.
Important point about asthma
Wheezing
Bronchi bronchioles swell
Imp point about occupational respiratory disease
Fibrosis
Value of IRC
2500 - 3000 ml
Value of ERC
1100- 1000 ml
Value of residual volume
1000 - 1200 ml