Trachea front and sides of the trachea to protect and maintain the airway. In front of the rings lies connective tissue and skin. Several other structures pass or sit over it; the jugular arch, which joins the two anterior jugular veins, sits in front of the upper part of the trachea. The sternohyoid and sternothyroid muscles stretch along its length, and the thyroid gland sits below this; with the isthmus of the gland overlying the second to fourth rings. The first tracheal ring is broader than the rest, and often divided at one end; it is connected by the cricotracheal ligament
History of beliefs about the human body muscular and focuses on the exterior of the body, what can be see and felt. This was the standard of beauty of humans and continues to be the ideal body of European traditions. There is no Vitruvian women. Eastern ideologies of the body explain what can be detected, not only felt and examined. This comes from the idea that there is not only what can be physically seen and touched but what can't be. Energy or more aptly the means by which your body can manifest itself in the world can't be seen but, was thought to be able to