Subsidiary respiratory centers, also known as secondary or auxiliary respiratory centers, refer to specialized regions within the central nervous system that contribute to the regulation of the breathing process. These centers work in conjunction with the primary respiratory centers located in the brainstem to control and coordinate respiratory functions.
The subsidiary respiratory centers act as backup systems, providing a redundant mechanism to support respiration in case the primary centers are dysfunctional or damaged. They are primarily located in the pons, a region in the brainstem, although some may also be found in other areas of the central nervous system.
These centers play a crucial role in maintaining respiration by detecting changes in blood gas levels, such as oxygen and carbon dioxide, and sending signals to adjust breathing accordingly. They receive sensory input from various sources, including chemoreceptors that monitor blood gas levels, as well as other sensory receptors in the lungs and airways.
When necessary, the subsidiary respiratory centers can modify the rate and depth of breathing, ensuring appropriate gas exchange to meet the body's metabolic demands. They work in coordination with the primary respiratory centers to maintain vital functions, such as sustaining oxygen supply, removing carbon dioxide, and maintaining acid-base balance.
In summary, subsidiary respiratory centers are specialized regions within the central nervous system that support and supplement the primary respiratory centers in regulating breathing. They provide a redundant system to ensure the continuity and effectiveness of respiration, optimizing gas exchange and maintaining overall homeostasis in the body.
