The brachiocephalic trunk is a major artery in the human body that branches off from the aorta. It is responsible for supplying blood to the right arm and the head and neck. The trunk divides into two main arteries: the right common carotid artery and the right subclavian artery. This artery is crucial for maintaining proper blood flow to vital areas. It is located on the right side of the body and is shorter than the left common carotid artery and left subclavian artery, which arise directly from the aorta.