Which joint? head of the femur bone & acetabulum of hip bone= hip joint. Medial and Lateral Condyle of the Femur + Tibia =tibiofemoral joint. Patellar Ligament of Femur + patella=patellofemoral joint.
I think you did some activity where you kept track of your heart rate and based on your knowledge of the circulatory and respiratory system you need to explain how your heart rate changed and why your heart rate changed.
Maintain your regular exercise program
Answer:
can you clearfiy what you want?
Explanation: