What controls how fact you breathe?
(2 points)
Responses

level of oxygen in the body
level of oxygen in the body

level of carbon dioxide in the body
level of carbon dioxide in the body

temperature of the body
temperature of the body

blood pressure in the body
The level of oxygen and carbon dioxide in the body both control the rate of breathing.
How can you lower the blood pressure for the virtual person in this experiment?
(2 points)
Responses

Constrict the blood vessels (make them smaller)
Constrict the blood vessels (make them smaller)

Close the blood vessels
Close the blood vessels

Increase respiration
Increase respiration

Dilate the blood vessels (make them wider)
Dilating the blood vessels (making them wider) can help lower the blood pressure for the virtual person in this experiment.
How can you cool the body in this experiment through perspiration settings?
(2 points)
Responses

Increase blood pressure dilation
Increase blood pressure dilation

Decrease perspiration
Decrease perspiration

Decrease heart rate
Decrease heart rate

Increase perspiration
Increasing perspiration can help cool the body in this experiment.
The level of carbon dioxide in the body controls how fast you breathe.
The correct answer is the level of carbon dioxide in the body.
To understand why, let's break down the process of breathing. Breathing is controlled by a region in the brain called the medulla oblongata, which is responsible for regulating basic bodily functions, including respiration. The medulla oblongata receives signals from sensors called chemoreceptors that detect the levels of oxygen and carbon dioxide in the blood.
When the carbon dioxide levels in the body increase, the chemoreceptors in the medulla oblongata send signals to increase the rate and depth of breathing. This helps to remove excess carbon dioxide and maintain a favorable balance within the body. Conversely, when the carbon dioxide levels decrease, the chemoreceptors signal to decrease the breathing rate.
Although oxygen plays a crucial role in respiration, it is the level of carbon dioxide that primarily controls our breathing rate. Oxygen levels in the body are important for overall health, but they do not directly influence the breathing reflex.