The cardiovascular system.
The cardiovascular system.
The Circulatory System
it is an organ, it doesn't belong to any other organs in the body but it does belong to a system in the body the digestive system.
The bicep is in the muscular body system.
The circulatory system, responsible for distributing nutrients in blood through the entire body. Capillaries are the smallest blood-carrying "tube" in the body. Please note that every system in the human body is directly related to one or more other systems. Capillaries also work with the Respiratory system in which they carry oxygen and carbon dioxide to trade with cells.
Capillaries - they are the smallest vessels that serve as arteries and veins.
Respiratory System
nervous system
reproductive system
The immune system
the digestive system
to move nutrients to the individual cells of the body