expail regulation of respiration
Answers
Explanation:
Respiration Centres Of The Brain
The neuronal signals transmitted between respiratory centres of the brain and the muscles in the chest and diaphragm modulate respiration. There are three main centres of the brain that regulate breathing. They are present in the medulla and the pons region of the brain. They regulate breathing by stimulating the contraction of the intercostal muscles and the diaphragm. Let’s take a closer look at these different centres.
Browse more Topics under Breathing And Exchange Of Gases
Respiratory Organs
Mechanism of Breathing
Exchange and Transport of Gases
Disorders of Respiratory System
In Medulla
Respiratory Rhythm Centre
Inspiration is followed by expiration, thus creating a regular, oscillating cycle of breathing. This is the respiratory rhythm. A special centre in the medulla region of the brain is primarily responsible for regulating respiratory rhythms. This is the ‘Respiratory Rhythm Center’. This centre produces rhythmic nerve impulses that contract the muscles responsible for inspiration (diaphragm and external intercostal muscles).
Normally, expiration happens when these muscles relax. However, in case of rapid breathing, this centre stimulates the muscles responsible for expiration (internal intercostal muscles and abdominal muscles).