system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
First rib is not related to ?
assistant
The correct answer is  Ans. is `d' i.e., T2 NerveAnteriorly, the neck of the first rib is related to (from medial to lateral) :- (1) Sympathetic chain, (ii) Ist posterior intercostal vein, (iii) Supeior intercostal aery, and (iv) 1st thoracic nerve. These structures are between neck of first rib (posteriorly) and apex of lung (anteriorly).Following are attached to first rib :- Scalenus anterior, scalenus medius, subclavius, serratus anterior ( lst digitation), costo-clavicular ligament and suprapleural membrane.