query: What is the largest artery in the human body?
passage: Largest body part
The longest bone in the human body is the femur.[20] The largest artery is the aorta[21] and the largest vein is the inferior vena cava.[22] The largest internal organ is the liver.[23] It is also the heaviest organ, with an average of 1.6 kilograms (3.5 pounds).[24] The largest external organ, which is also the largest organ in general, is the skin.[25] The longest muscle is the sartorius muscle in the thigh.[26] The longest single nerve is the sciatic nerve in the thigh, counting its branches and axons.
passage: Thyroid ima artery
The artery is only present in approximately 3–10% of the population. Thyroid ima artery is of surgical importance; due to its relatively small size and infrequent presence it can cause complications such as severe bleeding in surgery of the thorax, trachea, thyroid or parathyroid glands. Knowledge of occurrence of the artery is especially important during tracheostomy and thyroidectomy. Because the artery is smaller than the other thyroid vessels, and having an origin from one of the bigger vessels, a brisk cut while performing the surgery may cause complications such as severe hemorrhage and significant blood loss. The artery, if dissected, may draw back into the mediastinum and further complicate the condition by causing hemorrhage and clots in the thoracic cavity.