There are a number of factors that can cause confusion, from serious health problems to vitamin deficiencies. Alcohol intoxication is a common cause of confusion. Other causes include: A concussion is a brain injury that occurs as a result of head trauma.
The space under the lungs can be called as Lung Volume whereas force exerting by the atmosphere over an area is known as Air Pressure When Contraction occurs in lungs, Volume of lung decreases, and as we know, volume is inversely proportional to Pressure, pressure inside lung increases, and expiration occurs [ Removal of gas from lungs to atmosphere ] Now, when relaxation occurs, volume increases, pressure decreases, and inspiration occurs [ air travels from atmosphere to lungs ]
Lung volumes are directly measured; Lung capacities are inferred from lung volumes. The average total lung capacity of an adult human male is about 6 litres of air, but only a small amount of this capacity is used during normal breathing.Tidal breathing is normal, resting breathing; the tidal volume is the volume of air that is inhaled or exhaled in only a single such breath.pecific changes in lung volumes also occur during pregnancy. Functional residual capacity drops 18â20%, typically falling from 1.7 to 1.35 litres, due to the compression of the diaphragm by the uterus.