It reaches all parts of the body because it is transported there by the 'Cardio vascular system' , a network of pipes (the arteries and veins) and a pump (the heart).
By veins
Oxygen reaches all parts of an animal's body when it enters the lungs and is carried by the circulatory system, specifically hemoglobin in red blood cells. The oxygen is then delivered to tissues and cells through blood vessels, where it is used in the process of cellular respiration to produce energy.
Your heart pumps blood to all parts of the body.
Blood supplies oxygen and nutrients to all parts of the body.
pumps blood to all body parts
all parts
to carry blood all parts of the body
The blood in our heart is carried to all parts of our body. The heart pumps the blood, and the blood is carried by veins. The veins are all over our body. They have a system; out to our body, and back to the heart.
The Aorta, it takes the oxygenated blood to all the other parts of the body,
to carry blood all parts of the body
Blood from all parts of the body except the lungs goes to the vena cava. Blood vessels that carry blood towards the heart are veins.
Blood carries oxygen to all other body parts.