Deoxygenated blood is a darker red color compared to oxygenated blood. This is because of the lower levels of oxygen and higher levels of carbon dioxide present in deoxygenated blood.
The lungs have this blood flow pattern. Low oxygen levels (hypoxia) cause vasoconstriction to redirect blood flow to well-ventilated areas of the lung, while high oxygen levels (hyperoxia) cause vasodilation to optimize oxygen exchange.
blood vessels
Red blood cells carry oxygen from the lungs to the muscles, which is essential for energy production during exercise. Athletes with higher red blood cell counts can deliver more oxygen to their muscles, improving endurance and performance. This can be especially important for endurance athletes like marathon runners or cyclists.
The pulmonary circulation is the organ system that exhibits this pattern. Low oxygen levels in the blood cause vasoconstriction in the pulmonary arteries, directing blood flow towards better oxygenated areas. Conversely, high oxygen levels trigger vasodilation, allowing for increased blood flow to areas that need less oxygen.
If the patient blood levels fall (maybe due to hemorrhage), the oxygen that the RBCs are carrying is lost with the blood. The person will feel 'out of breath'.
Yes it does monitor blood oxygen levels and it is located in the brain stem.
Low oxygen levels causing vasoconstriction would typically occur in the pulmonary circulation, where the body constricts blood vessels in response to low oxygen levels (hypoxia) to redirect blood flow to well-ventilated areas of the lungs. High oxygen levels causing vasodilation can occur in systemic circulation, where increased oxygen levels trigger blood vessel relaxation to optimize oxygen delivery to tissues.
Oxygen levels in the blood are measured with a pulse oxymeter that measures by shining a light through the finger tip, with or blood gas tests run in a laboratory. Lab could be venous or arterial, usually arterial.
chemoreceptors
Yes, low blood oxygen levels can trigger an increase in respiratory rate to help the body compensate and improve oxygen delivery to tissues. Conversely, high blood oxygen levels typically have a lesser effect on respiratory rate as the body adjusts to maintain balance.
Carbon dioxide is at high levels and oxygen at low levels in blood that is being pumped from the heart to the lungs.