Cut Off The Source

Question: A 57 year old male undergoes transoral robotic assisted resection of a large tongue base squamous cell carcinoma.  Ipsilateral levels II-IV neck dissection is completed.  In order to prevent postoperative hemorrhage, prophylactic ligation of which two vessels is recommended?

[Answer will be posted with next week's new question]

Answer to last week's question, "Getting On My Nerves" (February 4, 2018)

None of the above. Individual injuries should be rehabilitated, as reanastomosis can lead to synkinesis and aberrant end organ innervation.