PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
False
|
|
|
True
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -The respiratory system takes up oxygen from the air we breathe and expels the unwanted carbon dioxide. The main organ of the respiratory system is the lungs. Other respiratory organs include the nose, the trachea and the breathing muscles (the diaphragm and the intercostal muscles).
Detailed explanation-2: -Just as our heartbeat is controlled by pacemaker cells in the heart, our breathing is regulated by a cluster of a few thousand cells in the brainstem known as the preBötzinger Complex, or preBötC. Discovered in 1991, these cells are the center of breathing regulation.
Detailed explanation-3: -Nervous System Control of Respiration: The nervous system controls breathing by sending motor commands to the muscles responsible for respiration. The primary muscle of respiration is the diaphragm, which contracts to expand the space in the thoracic cavity.