cardiovascular system

Your heart, blood, and blood vessels make up your _, which transports blood around your body.

The _ is a group of organs and tissues that collet the fluid that leaks from blood and returns it to the blood.

The fluid that leaks from the blood is called _.

_ are small, bean-shaped organs that remove pathogens and dead cells from lymph.

The _ atrium receives oxygen-poor blood from the body.

An _ is a blood vessel that carries blood away from the heart.

A _ is a tiny blood vessel that allows these exchanges between body cells and the blood.

_ blood cells help keep you healthy by fighting pathogens such as bacteria and viruses.

(a)  

This blood vessel carries oxygen rich blood around the body.

What does the word cardio mean?