First rib is not related to ?
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.
Sympathetic chain
Scalenus anterior
Suprapleural membrane
T2 Nerve