Carotid sheath sternum. The four major structures contained in the carotid sheath are: The carotid artery lies medial to the internal jugular vein, and the vagus nerve is situated posteriorly between the two vessels. In the upper part, the carotid sheath also contains the glossopharyngeal nerve (IX), the accessory nerve (XI), and the hypoglossal nerve (XII), which pierce the fascia of the carotid sheath. The ansa cervicalis is embedded in the anterior wall of sheath. It is formed by "descendens hypoglossi" (C1) and "descendens cervicalis" (C2-C3). The three major fascial layers in the neck contribute to the carotid sheath: the investing fascia,
Dynamism of a Human Body: Boxer in any type of motion or fixed presence, but rather in such a way that it would "decompose according to the tendencies of its forces". Despite the abstractness of the painting, the viewer can make out movement by view of the contours and bundles of muscles. In general, the series of Boccioni's dynamisms attempt to document progressive movement through its various elements. The work was part of a forty-six drawing series. These drawings were displayed in the spring of 1914 at Florence. Dynamism of a Human Body: Boxer Dynamism of a Human Body: Boxer is a dynamism drawing created by