What does the cardiovascular system primarily transport?

The cardiovascular system primarily transports oxygen and nutrients to various tissues and organs throughout the body. Blood, which is the main component of this system, carries oxygen from the lungs to the cells, enabling cellular respiration and energy production. In addition to oxygen, the cardiovascular system also delivers essential nutrients absorbed from food, such as glucose, amino acids, and fatty acids, to provide energy and support growth and repair processes within the body. This transportation is crucial for maintaining overall health and facilitating the various physiological functions necessary for life.

While hormones and enzymes are transported through the blood, they are not the primary focus of the cardiovascular system's role. Similarly, carbon dioxide and waste products are indeed transported by the cardiovascular system back to the lungs and kidneys for removal, but the main function revolves around the delivery of oxygen and nutrients to sustain cellular activity.