Definitions

Capacity	Description	Average
Vital capacity/forced vital capacity	Volume that can be exhaled after maximum inspiration (to maximum expiration)	4.5L
Inspiratory capacity	Volume breathed in from quiet expiration to maximum inspiration	3L
Functional residual capacity	Volume remaining after quiet expiration	3L

1

What is the maximum amount of air exhaled following a maximum inhalation?

Vital Capacity(VC) It is the total amount of air exhaled after maximal inhalation. The value is about 4800mL and it varies according to age and body size. It is calculated by summing tidal volume, inspiratory reserve volume, and expiratory reserve volume.

What is the maximum amount of air a person can breathe out after a forced inspiration?

The maximum amount of air which can be breathed out through forceful expiration after a forceful inspiration is called Vital Capacity (VC). It is sum total of Tidal Volume (TV), Inspiratory Reserve Volume (IRV) and Expiratory Reserve Volume (ERV). The value for vital capacity is about 3.4 – 4.8 litres.

What is the maximum amount of air that can be inspired?

The inspiratory capacity (IC), about 3,600 mL, is the maximum amount of air that can be inspired (IC = TV + IRV).

What is the maximum volume of air a person can exhale after a maximum inspiration quizlet?

The maximum volume to which the lungs can be expanded with the greatest possible inspiratory effort; it is equal to the vital capacity plus the residual volume and is approximately 5,800 mL.

When 1200 mL air is left in the lungs it is called?

Residual Volume (RV): Volume of air remaining in the lungs even after a forcible expiration. This averages 1100 mL to 1200 mL.

What percentage of the air we breathe out is carbon dioxide?

Inhaled air is by volume 78% nitrogen, 20.95% oxygen and small amounts of other gases including argon, carbon dioxide, neon, helium, and hydrogen. The gas exhaled is 4% to 5% by volume of carbon dioxide, about a 100 fold increase over the inhaled amount.

How much amount of air always remain present in the lungs even after a possible expiration?

– Residual volume (RV) is the volume of air that remains in the lungs even after the forceful expiration. It is about 1100 mL to 1200 mL.

What is the maximum amount of air that can be expired after a maximum inspiration called?

Vital capacity (VC): Maximum volume able to be expired after maximal inspiration. Total lung capacity (TLC): Volume of air in the lungs after maximal inspiration. Forced expiratory volume (FEV1): Volume that can be expired in 1 second of maximum forced expiration.

What is the amount of air that can be maximally inspired after a normal expiration quizlet?

the maximum amount of air that can be inspired after a normal expiration. the maximum volume of air that can be inspired after a maximum expiration. the amount of air in the lungs after a maximum inspiration. -equals 6000mL in men and 4200mL in women.

Is the maximum amount of air that can be expired after a maximum inspiratory effort?

– The greatest quantity of air that can be expired after a maximum inspiration is known as Vital capacity. -Tidal Volume(TV) is the amount of air during one respiratory cycle that can be inhaled or exhaled.

What lung volume or capacity is equal to IC Irv?

Inspiratory capacity is the volume of air that can be inspired following a normal, quiet expiration and is equal to tidal volume + inspiratory reserve volume.

What is the volume of air in a normal breath called?

Tidal volume (TV) is the amount of air breathed in with each normal breath. The average tidal volume is 0.5 litres (500 ml).

How does total obstruction of the airway lead to atelectasis?

Atelectasis can happen when there is an airway blockage, when pressure outside the lung keeps it from expanding, or when there is not enough surfactant for the lung to expand normally. When your lungs do not fully expand and fill with air, they may not be able to deliver enough oxygen to your blood.