Major Components

The heart pumps blood through are bodies, it also keeps oxygen and nutrients moving to are cells. Your heart is located in between you lungs in the left center or your chest. Your heart is never not doing it's job,it is always pumping blood and nutrients. This organ is very important because without it the cells would die and we would die. 

Main parts of the heart:

• Right atrium

• Left atrium

• Valves 

• Right ventricle 

• Left ventricle

Blood vessels are tiny tubes that circulate blood throughout the body. They run throughout our whole body and are constantly working day and night to transport oxygen, nutrients, and waste through the body. Our body contains billions of blood vessels, which fall into three main types:

•  Arteries 

• Veins

• Capillaries

The blood's main purpose within the body is to transport nutrients and supply oxygen to our cells. The blood also has the job of transporting antibodies and hormones throughout the body. 

Components of blood:

• Plasma 

• Red blood cells 

• White blood cells