Answer:
Your heart changes its rate due to the limited oxygen it receives and in response, the heart tries to increase 02 and C6H12O6 rich blood flow being delivered to the muscles. When your resting and the muscles don't need increased amounts of 02 and glucose your heart rate slows, the nervous system neuron cells monitor changes in blood flow and send their report to the The ventrolateral medulla, once there the vlm decides on the appropriate blood flow and relays them to the cardiovascular system. In some scenarios, the body uses Cellular respiration
Step-by-step explanation: