Question

name of exceptional vein and artery

Answer 1

The correct answer is - the Pulmonary artery and the Pulmonary vein.

The arteries are blood vessels that carry purified and oxygenated blood from the heart to different body parts. Similarly, veins are blood vessels that carry the impure or deoxygenated or impure blood from the body parts to the heart for oxygenation or purification.

However, the exceptions in this category are the Pulmonary artery and the Pulmonary vein. They are also called as the 'Exceptional arteries and exceptional veins'.

The Pulmonary artery is known to carry the deoxygenated or the unpurified blood to the lungs from the heart for oxygenation. The Pulmonary vein is known to carry the purified or the oxygenated blood to the heart.

Answer 2

The answer to this question is "Pulmonary Artery and Pulmonary Vein".
Explanation:
There are two types of blood vessels in the circulatory system of human body. Arteries that carry oxygenated blood from heart to all parts of the body and Veins that carry blood to the heart for purification. 
Pulmonary Artery:
Pulmonary arteries are the exceptional arteries that are one pair in number and take away blood from heart to lungs of respective side. Wall of pulmonary artery is thick and elastic and carries deoxygenated blood from right ventricle of the heart.
Pulmonary Vein:
Pulmonary veins are two pair in number, one for each lung and drain blood from lungs to the heart. Walls of pulmonary veins are comparatively thinner and carry oxygenated blood towards left autricle of the heart.