The thyrocervical trunk is a branch of which part of subclavian artery?
A1st part
B2nd part
C3rd part
D4th part
Superior sulcus tumor of the lungs characteristically presents with:
ABreathlessness
BHemoptysis
CPancoast syndrome
DHorner's syndrome
Which of the following structures is NOT innervated by the phrenic nerve?
ADiaphragm
BMediastinal pleura
CSerratus anterior
DPericardium
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