If a wind starts at the north pole and blows towards the equator, in which direction will the wind be moving when it leaves the pole? when it has moved halfway to the equator?

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.