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What is Carina is situated at which level ? and explain in detail?
Ans. is '13' i.e., T4Trachea bifurcates at carina, at the level of lower border of 7'4 or T4- Ts disc space.Structure Cervico thoracic levelTracheal bifurcation T4-T5Arch of aoa Begins and ends at T4Xiphoid process T9Splenic axis Along 10th ribCarotid bifurcation, Hyoid bone C3Upper border of thyroid cailage C4 Level of cricoids cailageLumbar levelCeliac trunk T12 - L ISuperior mesenteric aery LlTranspyloric plane Lower border of Ll