Cardiovascular system function in muscle contraction?

The cardiovascular system plays a crucial role in muscle contraction by delivering oxygen-rich blood to the muscles during physical activity. This oxygen is essential for aerobic metabolism, which produces the energy needed for muscle contractions. Additionally, the cardiovascular system helps remove metabolic waste products, such as carbon dioxide and lactic acid, ensuring that muscles can function efficiently and sustain activity. Overall, a well-functioning cardiovascular system supports endurance and performance in muscle activities.