As your heart rate increaes, so does your breathing. Make a correlation between the two?

Answer 1

Your heart rate and your stroke volume, together with your respiratory rate, are three of the four controlling mechanisms of the cardiovascular/pulmonary system, and ensure (as far as possible) that "supply" and "demand" are equated.

That is, for any given 'demand' level of blood flow, the brain ensures that the cardiac output is correct, and supplied at a pressure (mean arterial) just right to ensure proper flow, -having regard to the extent of dilation of the arteries and other blood vessels. The oxygen content of the ejected blood is also controlled, and an overall equilibrium established.

When the body is subject to additional, that is 'elevated' stress, FIVE things happen:-

(1) Pulse rate rises
(2) Stroke volume rises
(3) Vasodilatation occurs
(4)Breathing RATE rises
(5)Respiration DEPTH increases.

So, the available oxygen forced through the downstream blood vessels (capillaries) is greatly increased, allowing greater take-up.

Does this answer your question? - If not, then do ask and I'll try to expand on it for you.

("THE_ONLY": - don't be such a supercilious prig. Either answer the Question, or pass.

Answer 2

The circulatory system and the respiratory system are inter connected and depend on each other.

Answer 3

you need to do your own homework, asking for answers like this only results in a poorly educated healthworker.