<prompt> Which of the following is a branch of 3rd part of subclavian artery?Thyrocervical trunkDorsal scapular arteryVertebral arteryInternal thoracic artery  <response>: Ans. B Dorsal scapular arteryRef: Netters Clinical Anatomy, 3rd ed. pg. 504 Dorsal scapular artery is a branch of 3rd part of subclavian artery. 