PSYCHOLOGY OF EMOTIONS

Detailed explanation-1: -Breathing is one of the few vital bodily functions that can be controlled consciously, as well as unconsciously. Conscious control of breathing is common in many activities, including swimming and singing. There are limits on the conscious control of breathing, however.

Detailed explanation-2: -Breathing is a bodily act that is the result of the contraction of skeletal muscles, which are generally under conscious control. However, breathing is normally a subconscious act: When you forget to breathe, you are still breathing. The breath can also be directed consciously, which is easy to demonstrate.

Detailed explanation-3: -The medulla, located nearest the spinal cord, directs the spinal cord to maintain breathing, and the pons, a part of the brain very near the medulla, provides further smoothing of the respiration pattern. This control is automatic, involuntary and continuous. You do not have to consciously think about it.

Detailed explanation-4: -Organisms carry out external respiration in various ways depending on their size and environment. For example, exchange of oxygen and carbon dioxide happens directly with the environment through any cell membrane. In human beings and some animals, lungs are the chief organs of breathing.