Question

after running, ollies blood pressure was high. his nervous system sensed this and sent a message to decrease heart rate and blood flow. which system worked together with the nervous system?
o skeletal system
o circulatory system
o respiratory system
o digestive system

Explanation:

During physical activity like running, the circulatory system is responsible for transporting blood, oxygen, and nutrients. It works closely with the nervous system to regulate heart - rate and blood flow. The respiratory system also works with the nervous system to adjust breathing rate for oxygen supply, but in terms of directly dealing with blood - pressure and heart - rate regulation during exercise, the circulatory system is key.

Answer:

circulatory system