The kidneys sense that the oxygen levels in the blood are low. The kidney sends a hormone signal to the bone marrow to make more red blood cells. The number of red blood cells increases, so more oxygen is carried in the blood.
W. Wright, Biology student, Biology student, Astoria
Answered Feb 18, 2021
Going by the information provided in this question, this is a negative feedback loop. While there are two major types of feedback loops, negative and positive feedback loops, negative feedback loops are very common. The reason for this is to stabilize the body system and keep it at equilibrium. Negative feedback loops are biological reactions that occur in response to certain stimuli.
They work by causing a decrease in the function of a particular organ. For instance, when there is a decrease in the blood's oxygen levels, the kidneys detect this by secreting a hormone known as erythropoietin. That causes the stimulation of red blood cells.
The hormone secreted by the kidneys causes the bone marrow to produce more red blood cells. An increase in the production of red blood cells automatically increases the amount of oxygen in the blood. Unlike a negative feedback pool, a positive feedback loop will cause the reaction to occur until the stimulus disappears.
The feedback loop is going to be considered as a negative feedback loop. When you say negative feedback loop, you are referring to the process wherein the product of a reaction will also have a decrease in the reaction that it is supposed to get.
A lot of times, the negative feedback loop will make it possible for homeostasis to become reached easier. Some people would refer to the negative feedback loop as an “inhibitory loop.” This means that it will be able to regulate its own system. This will be responsible for the different types of hormone regulation that may happen in the body.
The kidneys play an essential role in our bodies' functioning. They perform waste excretion, water level balancing, blood pressure regulation, acid regulation, and red blood cell regulation. When the kidneys sense that your blood is in a hypoxic state, they send feedback through a negative loop or a distress signal by releasing an erythropoietin hormone.
Hypoxemia can be caused by heart conditions, asthma, emphysema, and sleep apnea. This hormone stimulates the bone marrow to produce more oxygen-carrying red blood cells. These cells come to the kidneys from the abdominal aorta, the oxygen is used, and then the blood leaves the kidneys toward the inferior vena cava and then on to the heart for reoxygenation. A person's kidneys receive about 1.2 liters of blood each minute, and they are an integral part of your body's performance.
This is a negative feedback loop. This is because the kidneys are creating more oxygen in the blood. This is caused, of course, by the chemicals that the kidneys release to signal more blood flow. If the loop were going to be a positive feedback loop, the oxygen level in the blood would continue to drop, and eventually this person would die of oxygen deprivation. That’s the difference between kidneys functioning properly and not in this case. Of course, there are other examples of both positive and negative feedback loops in a body. However, let’s focus on the differences for a moment.
Positive feedback will continue the trend, usually accelerating it. Referring back to the question, this would mean greater oxygen loss in the blood, as mentioned earlier. A negative feedback, on the other hand, will reverse the trend - perhaps by increasing blood flow.