Use Table 2 to answer the following questions: (a) (i) Identify the part of the body that receives the most blood during exercise - OCR - GCSE Physical Education - Question 22 - 2020 - Paper 1

At rest, the part of the body that receives the most blood is the liver, which receives 25% of the blood.

The redistribution of blood during exercise primarily increases blood flow to the active muscles while reducing flow to organs that are less active, such as the liver and kidneys. This ensures that working muscles receive more oxygen and nutrients needed for energy production, while waste products like carbon dioxide are removed more efficiently. Additionally, this redirection supports enhanced performance by optimizing physical capabilities and allowing for sustained exertion.

During a cross-country race, red blood cells play a crucial role in transporting oxygen from the lungs to the muscles. They bind with oxygen in the lungs and release it in the muscles where it is needed for aerobic energy production. This is vital for maintaining stamina and performance during long-distance activities.

1. The skeleton provides support and structure to the body, allowing for an upright posture necessary for running.
2. It protects vital organs, such as the heart and lungs, which are essential for endurance activities.
3. The bones serve as attachment points for muscles, facilitating movement and force generation during a race.