EVERYDAY SCIENCE

Detailed explanation-1: -The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.

Detailed explanation-2: -The system that contains the heart and the blood vessels and moves blood throughout the body. This system helps tissues get enough oxygen and nutrients, and it helps them get rid of waste products.

Detailed explanation-3: -The heart is the most important part of the circulatory system because without it blood would not be pumped throughout the body. The blood vessels are the most important part as they carry the blood with nutrients and oxygen to the cells.

Detailed explanation-4: -3.1. RBCs play a critical role transporting oxygen from the lungs to other tissues in the body via the circulatory system.

Detailed explanation-5: -To transport nutrients, gases and waste products around the body. To protect the body from infection and blood loss. To help the body maintain a constant body temperature (’thermoregulation’) To help maintain fluid balance within the body.