What does not deliver deoxygenated blood to the heart?

Pulmonary veins

Explanation:

In the circulatory system, the heart is responsible for for pumping oxygenated blood throughout the body and deoxygenated blood to the heart.

Normally all veins carry deoxygenated blood. However the pulmonary vein is the only vein that carries oxygenated blood.

They carry oxygenated blood from the lungs to the heart.

However the Superior and inferior vena cava are responsible for delivering deoxygenated blood to the heart.

it's the cell cycle, but cytokines is when the cell divides.

theres 3 stages interphase,mitosis,and cytokines.

interphase prepares the cell for division.

mitosis is the process of dividing the cell,it has 4 parts interphase,anaphase,metaphase,and telophase.

lastly there's cytokines,that's when the cell divides into 2 daughter cells

the match lol