All of the following structures pass through the superior aperture of thorax except -: (A) Right recurrent laryngeal nerve, (B) Left common carotid artery, (C) Left sympathetic trunk, (D) Thoracic duct
Answer is A. Ans. is 'a' i.e., Right recurrent laryngeal nerve Superior aperture of thorax * The narrow upper end of the thorax, which is continuous with the neck is called the superior aperture or the inlet of the thorax.Structures passing through the inlet of thoraxVisceraVesselsNervesMuscles* TracheaLarge vessels* Right and left* Sternohyoid* Oesophagus* Brachiocephalic artery onphrenic nervessternothyroid and* Apices of the lungsright side* Right and leftlongus colliwith pleura* Left common carotidvagus nerves * Remains of theartery and left subclavian* Right and left thymusartery on the left side.sympathetic * Thoracic ductRight and left brachiocephalic veinsSmaller vesselsRight and left internal thoracic arteriesRight and left superior intercostal arteriesRight and left first posterior intercostal veinsInferior thyroid veinstrunks.* Right and left first thoracic nerves as they as