Question

what are the main organ of circulatory systems ​

Answer 1

Respuesta:

1. Blood
2. The heart
3. Arteries
4. Veins

Explicación

Blood consists of:

Red blood cells – to carry oxygen

White blood cells – that make up part of the immune system

Platelets – needed for clotting

Plasma – blood cells, nutrients and wastes float in this liquid

The heart pumps blood around the body.

Oxygenated blood is pumped from the heart along arteries, which are

muscular

veins carry deoxygenated blood from the body to the heart, where it can be sent to the lungs.