| Dogs Circulatory Systems Why the heart rate | | | | circulatory and respiratory system during exercise |
| increases during exercise? From the graph it | | | | and during rest. In the dogs body the circulatory |
| shows that the heart rate of the dog increases | | | | and respiratory system work hard making sure |
| during exercise, while the dog is exercising the | | | | that what the dog needs is getting around the |
| heart pumps faster getting blood to the moving | | | | body, for the respiratory system the dog is |
| joints, making the dog breath faster to get the | | | | breathing much harder and faster then normal |
| needed oxygen around the body. The dog also | | | | taking in more oxygen, making the lungs work |
| gets adrenalin which also makes the heart work | | | | quicker and harder. For the circulatory system, as |
| harder and making the dog excitable. Why does it | | | | the dog runs around it makes the heart work |
| take a while to return to normal? It takes a while | | | | faster pumping oxygenated blood around the |
| for the heart rate to return to normal after | | | | body, to the areas that need it. After exercise |
| exercising because the dog still had adrenalin | | | | bother systems slow down slowly, the heavy |
| around the body and it takes awhile for the heart | | | | breathing gets softer, less oxygen is taken in and |
| to stop pumping faster and for the breathing to | | | | the fast heart rate slows down, less blood is |
| go back to normal this is because the adrenalin | | | | pumped around making it go back to normal. |
| needs to wear-down in the system. The dog's | | | | |