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 ]
Breathing and Lung Mechanics. Ventilation is the exchange of air between the external environment and the alveoli. Air moves by bulk flow from an area of high pressure to low pressure. All pressures in the respiratory system are relative to atmospheric pressure (760mmHg at sea level).