The work of all members of the respiratory tract in a coherent and consistent and regular and frequent are under the influence of the nervous system that contains special centers to breathe in the bulb Asiaúah In hump in the bridge of the brain is involved several parts nervous and chemical in the formation of the nervous system regulating breathing a receptors and neurons respiratory sensory The brain centers breathing and respiratory motor nerves.
1. Respiratory receptors:
It is a chemical sensory receptors are found on the walls of the aorta and carotid artery. And affected by chemical changes in the body such as the decrease or increase the percentage of oxygen or carbon dioxide increase the pH (decrease the pH number).
2. The respiratory sensory neurons:
It neurofibers issued receptors and centers Altkhuyh centers Alntkh in the lungs, and the receptors on the smooth muscle in the airways to reach centers upper respiratory in the brain. فيصدر of receptors carotid artery nerve carotid sinus and up to centers sniffling in onion Asiaúah and issue of receptor aorta inhibitory nerve. And up to the center of inspiration in the bulb, where he works there intertwined nervous sensory and continues walking to the top to reach the center of tuberous finisher in the tuber in the bridge, located directly above the bulb Asiaúah and Taatasb lungs and trachea nerve Ha'ir (vagus) that reaches the bulb.
3. Brain respiratory centers:
No breathing centers in:
A. Cerebral cortex, a senior centers
B. Bulb the Asiaúah:
1. Inspiratory center: raise the center leads to shrinking or contraction of all the muscles sniffling and if they continue raising for a long time lead to death due to the accumulation of carbon dioxide in the blood by which he put to the outside.
2. Center exhale: raise this occur زفيرا center long lasts from two to three minutes does not result in raising continuing to die where he once high rate of carbon dioxide in the blood alert center sniffling and begin work immediately and occur inspiration. What must be noted that the exciting centers together occur constricting Shahykie and relate with each other nerves connected mutually.
C. Camber (bridge)
1. Deep inspiration Center: This center sends alerts to the center of inspiration in the bulb to prolong the period of inspiration and this influence is organized in two ways: i . Vagal (Drifter) ii . Center tuberous Nahi which inhibits inspiratory center
2. Center tuberous Nahi it receives alerts from the center of the sniffling and sends its effects and Tenbahath to exhale raising center in order to stop sniffling.
4. Respiratory motor nerves:
Some of these nerves emanating from the cerebral cortex and some issues from the area of the bridge and work intertwined last in the spinal cord to give neurons final up breathing muscles to move them orders to respond. Valasb phrenic that innervate the diaphragm works Entanglement second cervical vertebrae former, while intercostal nerve that innervate muscle intercostal between the ribs second Entanglement works in the first paragraph bra, while skeletal muscle Vtaatasb nerves coming from the brain.
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respiratory device