For most normal individuals the hypothalmus is is the origin of central chemoreceptors. These chemoreceptors are very sinsitive to elevation or drops in pH (or amount of free Hydrogen Ion in the blood). The equation: H + HCO2 = H2O + CO2
Shows how CO2 in the bloodstreem effects the amount of free H ion in the blood; in other word the more CO2 in the blood the more acidic it is and has a lower pH. The lower the pH of the blood is the more stimulation is given to the central chemoreceptors in the hypothalmus thus stimulating the phrenic nerve among others to raise the respiratory rate and blow off the excess CO2.
This process is very different for individuals who are suffering from chronic CO2 retention (Like in COPD). These indeviduals can not use the central chemoreceptors due to the excessive CO2 in the blood is a norm for them! These individuals must now depend on their peripheral chemoreceptor located through out their body. These peripheral chemoreceptors are sensitive to O2 levels in the blood, and are sitmulated by a drop in O2 concentration. This is why it could be dangerous to give excessive supplimental oxygen to a person with COPD. If there is no drop in O2 levels (because your giving them O2) in their blood what stimulates them to breath? Nothing !!!!! Scary huh? Dont smoke!!!
The brainstem is the respiratory rhythm generator. It is involved in involuntary breathing. Within the brainstem, the ventral respiratory group and the dorsal respiratory group are responsible for generating breathing rhythm and the pontine respiratory group regulates the pattern of that rhythm.
The respiratory center of the medulla is responsible for dictating the respiratory rate and rhythm.
medullary respiratory centers
The part of the brain that controls respiratory rhythm (and other involuntary actions) is known as the medulla oblongata.
The three characteristics of a respiratory rate are rate, depth, and rhythm.
the medulla and pons
The rhythm of respiration is controlled by the brain. The specific area of the brain is called the respiratory center.
Hyperventilation occurs when the respiratory system is not functioning properly. Hyperventilation is when the breathing rhythm is not proper, shorter breathes, and too much carbon dioxide becomes present.
Respiration is controlled by the brain stem. The rhythm itself is controlled by an area called the pons.
medulla and pons
The Apneustic center of the Pons Varoli
The answer is Ventral Respiratory Group or VRGIt contains the rhythm generators "whose output drives respiration".Hoehn, Marieb Human Anatomy & PhysiologyEighth Edition pg. 835
An EKG or ECG (electrocardiogram), calculates heart heart and rhythm. This diagnostic procedure is not associated with a respiratory rate.
The- respiratory group within the madulla oblongata regulates the basic rhythm of breathing.
the medulla oblongata
The Medulla Oblongata
Pons and Medula in the brain stem.
The medulla oblongata, the lower part of the brain stem is responsible for controlling, among many other things, heart rate, blood pressure, respiratory rhythm, coughing, and sneezing.
there is a specific group of cells found in the medula (part of the brain stem) which regulate the rhythm of breathing, hence the name (of this cellular formation) the Medulary Rhythmicity Center.
medulla oblangata .....:>
The corticol motor will activate stimulating the pontine centers to modify VRG breathing rhythm. The VRG will make adjustments to the stimulus going to the respiratory centers