Question

Total Lung Capacity Of Human Beings Is?

Answer 1

The lungs are two spongy, air-filled organs that are located on either side of the chest (thorax). The trachea (windpipe) transports inhaled air to the lungs via tubular branches known as bronchi.

Complete answer:
The primary function of the lungs is the gas exchange process known as respiration (or breathing). During respiration, oxygen from the incoming air enters the blood, while carbon dioxide, a waste gas from metabolism, exits the blood. A decrease in lung function indicates a decrease in the ability of the lungs to exchange gases.

Lung volume is also referred to as respiratory volume. It is the amount of gas in the lungs at any given point in the respiratory cycle. Lung capacities are calculated by adding together different lung volumes. An adult male's total lung capacity is approximately 6 litres of air. The measurement of lung volumes is an essential component of the pulmonary function test.

These volumes vary according to respiratory depth, ethnicity, gender, age, body composition, and certain respiratory diseases. Spirometry can measure several lung volumes, including tidal volume, inspiratory reserve volume, and expiratory reserve volume.

Tidal breathing is normal, resting breathing; the tidal volume is the amount of air inhaled or exhaled in a single breath. At birth, the average human respiratory rate is 30–60 breaths per minute, decreasing to 12–20 breaths per minute in adults.

Note: The volume of gas in the lung at the end of a full inspiration is referred to as total lung capacity (TLC). It is calculated using either TLC = RV+IVC or TLC = FRC+IC; the latter is the preferred method in body plethysmography. The radiologic technique can also be used to measure it directly.