Respiratory Center


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Related to Respiratory Center: Dorsal respiratory group, pontine respiratory center

respiratory center

[′res·prə‚tȯr·ē ¦sen·tər]
(physiology)
A large area of the brain involved in regulation of respiration.

Respiratory Center

 

several groups of nerve cells (neurons) located in various sections of the central nervous system, primarily in the reticular formation of the medulla oblongata. The continuous coordinated rhythmic activity of these neurons ensures the initiation of respiratory movements and their regulation in conformity with changes occurring in the body.

Impulses from the respiratory center enter the motor neurons of the anterior horns of the cervical and thoracic sections of the spinal cord, from which the excitation is transmitted to the respiratory musculature. The activity of the respiratory center is regulated humorally—that is, by the composition of the blood and interstitial fluid that bathe it. Its activity is also regulated by reflexes, in response to impulses entering from receptors in the respiratory, cardiovascular, motor, and other systems, as well as from the higher sections of the central nervous system. When entry of nerve impulses into the respiratory center is blocked, the respiratory center maintains its activity by so-called automatism of the respiratory center and is capable of ensuring respiratory movements.

References in periodicals archive ?
Controls are located in the respiratory centers of the central nervous system.
Animal studies indicate that leptin improves ventilation by stimulating the respiratory center in the brain and by improving the distensibility of the lungs.
increased depth and rate of breathing triggered by the respiratory center in response to hypercapnia).
Since Water Street's investment in Sarnova in 2008, the company has grown to become the nation's leading specialty health care distributor, offering more than 100,000 products to thousands of emergency medical providers and acute care respiratory centers across the country.
Respiratory centers were affected, as were vegetative nucleates of the medulla oblongata (Figure 1).
This devastating syndrome is believed to result from the extensive damage of bulbar vasomotor and respiratory centers (Figure 1).
This phase is, in fact, a complex reflex combining cranial nerves IX, X, and XII, the reticular formation of the medulla, the respiratory centers of the brainstem, and probably the cerebral cortex itself.
This dorsoventral arrangement parallels that of the respiratory centers in the brainstem.
However, antidepressants or other drugs aimed at altering the activation of the respiratory centers in the brain and CPAP therapy or apnea surgery aimed at correcting the anatomical problems involved in sleep-disordered breathing have had inconsistent or results.