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Q: What is the first thing that changes when the oxygen demand increases heart rate or respiratory rate and why?
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What are the short terms on the respiratory system?

There is an increase in the breathing rate, this is due to the demand for oxygen from the working muscles. •The Respiratory Volume increases, this is due to the increase of Tidal Volume and breathing rate whilst meeting the demand of oxygen for the working muscles.


Why do you think the speed of the heart changes?

When you exert, the cells need more oxygen. The heart delivers blood that carries oxygen, so as the demand for oxygen increases the heart rate (and the volume of blood delivered on each beat) increases.


What are the normal changes that occur in the respiratory system during exercise?

respiratory system change with more exercise because it is related to our cardiovascular and respiratory system.when we do exercise our heart rate increases cardiac output increases and oxygen is more utilizing and more energy is required.These all cause effect on respiratory system


Why does oxygen diffusion rate increase?

Oxygen diffusion increases as the need increases. It is a matter of supply and demand.


Does blood oxygen levels influence respiratory rate?

Yes. Oxygen is a stimulant - it increases the heart rate.


Air temperature changes as altitude increases because of?

it is awesome this answer is gravities pull on oxygen


How does the respiratory system affect the cardiovascular system?

Aerobic exercise strengthens the ability of the cardiovascular and respiratory systems to provide oxygen to body tissues efficiently. In the short term, aerobic exercise increases heart and respiratory rates.


Why is there a venous reserve of oxygen in the blood?

Venous reserve is available to maintain tissue oxygenation if either systemic oxygen demand increases or arterial content falls.


What kind of respiratory pigment does a man have?

The respiratory pigment is a molecule that increases the oxygen-carrying capacity of the blood. In man this is the hemoglobin. Hemoglobin is bright red when its been oxygenated, and a red-purple when it is deoxygenated.


Do fish gills move faster when they're excited?

The breathing rate of all creatures increases as demand for oxygen increases and fish are no different. This demand can be caused by many situations and a state of excitement or fright would be expected to cause panting.


A patient has an 80 percent blockage of his left anterior descending coronary artery Describe what occurs in terms of myocardial oxygen supply and demand if his sympathetic nervous system is stimulate?

Increased myocardial contractility increases the oxygen demand for the myocardial cells. If the demand of oxygen exceeds the supply, death of myocardial tissue can occur.


What is a benefit for better cardio respiratory endurance?

the body's ability to exchange oxygen effectively with the muscles