The respiratory system controls and regulates breathing. The lungs are subconscious muscles which works constantly, however, we do have direct control over the lungs through conscious thought. The purpose of the lungs is to bring oxygen into the body. The oxygen is received by the blood and oxygenated. The oxygenated blood is transported around the body via the intrinsic vein system and back to the heart, to be oxygenated again. This cycle continues infinitely. When we exercise, or fuelled with adrenalin, or generally ‘out of breath’ our lungs and heart work faster in order to pump oxygenated blood around the body faster as the body needs it quicker in order to function.
The lungs are composed of the bronchus, alveoli and bronchiole. Oxygen travels past the mouth, down the trachea and into the two lungs. The muscles of the lung draw the contraction of the diaphragm. When oxygen is inhaled the diaphragm extends and upon exhaling it reduces. The little air sacks within the lungs, the alveoli, take in the oxygen. There are over 700 million of them. The bronchus and bronchiole are the tiny tubes and pipes within the lungs that allow oxygen to travel there.
The two female figure studies are taken from reference from ArtsyPoses. Image_01, Image_02.
Lucy Anna Lowe 