The aortic arch gives out three arteries viz. __________.

The aortic arch gives off three major branches which supply blood to the head, neck, and upper limbs.

These three branches, in order from right to left, are:
1. Brachiocephalic artery (also known as the innominate artery)
2. Left common carotid artery
3. Left subclavian artery

The brachiocephalic artery further divides into the right common carotid and right subclavian arteries.

Answer: brachiocephalic, left common carotid and left subclavian