<prompt> Thyocervical trunk is a branch of1st2nd3rdNone  <response>: Thyrocervical trunk is a sho, wide vessel which arises from the front of the first pa of the subclan aery, close to the medial border of the scalenus anterior, and between the phrenic and vagus nerves. It almost immediately divides into the inferior thyroid, suprascapular and transverse cervical aeries. Ref: BD Chaurasias HUMAN ANATOMY, Volume 3, 4th edition. 