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medulla oblogata
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∙ 11y ago
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How does the respiratory system control carbonic acid concentration and pH?
when there is to much carbonic acid the body increases rate and depth of respiration to reduce the co2, which reduces the carbonic acid,(water in the plasma + co2 = h2co3 . when the co2 level goes down below normal levels, respirations slow and become more shallow to retain co2 which increases the carbonic acid, and adjusts the blood ph.
Why is there a higher percentage of CO2 in the air exhaled than inhaled?
The air we inhale comes from the athmosphere; the percentage of CO2 in the athmosphere is next to insignificant. The air we exhale comes from the cellular environment; cells give off CO2 as part of their metabolism, thus CO2 venous blood concentration is high
If the pH of blood drops what should one expect?
If your blood pH drops too low, the medulla oblongata in the brain panics and sends out a signal to your diaphragm to contract, which gets rid of excess CO2 in your blood.
What influences respiration?
Breathing is controlled by the build up of CO2 in the body. The brain detects this and stimulates the thoracic movements which result in the influx and efflux of air from the lungs. During strenuous exercise, anaerobic respiration may occur, building up lactate and an 'oxygen debt'. Deep breathing occurs after exercise to alleve this oxygen debt.
What element is transported by your red blood cells?
Iron..Part of hemoglobin in red blood cells ; transports oxygen
Does the breathing control center in the brain monitor the rising CO2 levels in the blood?
Quite so. The brain stem detects high levels of carbon dioxide and triggers breathing.
How does the brain control breathing?
there's a part of this brain called the respiratory system and if i am not mistaken it is located in a part of the brain called pons and the medulla oblongata. the brain controls the rate of breathing by monitoring the level of carbon dioxide in the blood. CO2 by the way is the main stimulus for breathing. without it, you just stop breathing at all (so CO2 is not at all that bad). anyway, when CO2 levels in the blood is high a condition known as respiratory acidosis develops. as a compensatory mechanism the brain causes us to hyperventilate to get rid of that extra CO2. when the CO2 level is low on the other hand, respiratory alkalosis develops. as a result the brain will cause us to hypoventilate which allows for the accumulation of CO2 in the blood. CO2 is maintained at a normal range which is 35 - 45 mmHg.
What does the brain give the blood?
It gives it CO2 (carbon dioxide) and waste
What happens to the pH of blood as the CO2 level in the blood increases?
Decrease - as co2 is acidic Just think about those soft drink, as you just open and drink, its full of gases and acidicly sweet but after those gases gone, you drink like sugar water
How does the respiratory system control carbonic acid concentration and pH?
when there is to much carbonic acid the body increases rate and depth of respiration to reduce the co2, which reduces the carbonic acid,(water in the plasma + co2 = h2co3 . when the co2 level goes down below normal levels, respirations slow and become more shallow to retain co2 which increases the carbonic acid, and adjusts the blood ph.
What is the science behind the using Carbon Dioxide Detectors?
the co2 Detectors detects co2 and in the thing they should be about 0.03 co2 if not they something living in there
Intracranial pressure in presence of hyperventilation?
Goes down. Hyperventilation "blows off" carbon dioxide (CO2), lowering the blood CO2 levels; this causes vasoconstriction (narrowing of the blood vessels) resulting in a lower blood volume in the brain and a slight drop in intracranial pressure. It is a temporary measure, however, and even though it lowers intracranial pressure it may make brain injury worse, because it reduces cerebral perfusion (the flow of blood to the brain.)
What substance is the most important vasodilator of cerebral blood vessels?
Carbon dioxide (CO2). The arteries in your brain are designed to dilate (get bigger) when they sense more carbon dioxide and constrict (get smaller) when they sense less carbon dioxide. This is why you will pass out of you hyperventilate: when you consciously increase your breathing rate, you are blowing off more and more of your CO2. Less CO2 => blood vessels in your brain constrict => less blood flow to your brain => you feel lightheaded and will pass out if you continue breathing too fast. This is also why the remedy is to breathe into a paper bag - your CO2 will build up in the bag, you will maintain CO2 levels in your blood, and you will not pass out. Fun fact: for people with serious head trauma, you are very worried about brain swelling, since this can be lethal. One thing doctors do in this situation to buy them some time is to purposefully hyperventilate the patient. This decreases the patient's blood CO2 levels, which cause the blood vessels in the brain to constrict, and this can relieve some of the swelling. Unfortunately, this trick only works for 4 hours, but should be enough time to get other treatment started and/or get the patient to neurosurgery.
Which gas stimulates us to breathe?
breathing is controlled by the level of co2 in the blood, (not due to the fact that there may be low amounts of o2), there are chemoreceptors that measure the pH level of the blood, remember that co2 can be transported in the blood as carbonic acid, thus this acid lowers the pH. if a low pH is detected, it sends nerve impulses to our brain, that stimulates us to breathe in an effort to get rid of the co2.
How does the body control respiratory rate?
there's a part of this brain called the respiratory system and if i am not mistaken it is located in a part of the brain called pons and the medulla oblongata. the brain controls the rate of breathing by monitoring the level of carbon dioxide in the blood. CO2 by the way is the main stimulus for breathing. without it, you just stop breathing at all (so CO2 is not at all that bad). anyway, when CO2 levels in the blood is high a condition known as respiratory acidosis develops. as a compensatory mechanism the brain causes us to hyperventilate to get rid of that extra CO2. when the CO2 level is low on the other hand, respiratory alkalosis develops. as a result the brain will cause us to hypoventilate which allows for the accumulation of CO2 in the blood. CO2 is maintained at a normal range which is 35 - 45 mmHg.
Why is there a higher percentage of CO2 in the air exhaled than inhaled?
The air we inhale comes from the athmosphere; the percentage of CO2 in the athmosphere is next to insignificant. The air we exhale comes from the cellular environment; cells give off CO2 as part of their metabolism, thus CO2 venous blood concentration is high
If the pH of blood drops what should one expect?
If your blood pH drops too low, the medulla oblongata in the brain panics and sends out a signal to your diaphragm to contract, which gets rid of excess CO2 in your blood.
