<prompt> Which of the following vessel is not present in subclavian triangle?Suprascapular arteryOccipital arteryIII part of subcavian arteryExternal jugular vein  <response>: Subclavian triangle contains Third part of subclavian artery and subclavian vein Suprascapular artery and vein Commencement of transverse cervical artery and termination of the corresponding vein Lower part of external jugular vein 