Where Does the Left Phrenic Nerve Pierce the Diaphragm

The right phrenic nerve passes over the right atrium. The left phrenic nerve passes over the pericardium of the left ventricle and pierces the diaphragm separately.

Does the phrenic nerve pass through the diaphragm?

The phrenic nerve passes through the diaphragm. In the intact mediastinum, the phrenic nerve runs here, just beneath the pleura. On the left side, the course of the phrenic nerve is similar: in its course in the mediastinum it passes over the aorta, the pulmonary trunk, and the left ventricle.

Where is the left vagus nerve?

The left vagus nerve enters the thorax between left common carotid artery and left subclavian artery and descends on the aortic arch. It gives rise to the left recurrent laryngeal nerve which hooks around the aortic arch to the left of the ligamentum arteriosum and ascends between the trachea and esophagus.