Talk:Angular vein

Anatomy: Gross Mid‑importance

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Valves in facial, angular, supraorbital, supratrochlear, and ophthalmic veins

While it is commonly held that veins in the "Triangle of Death/Danger" do not have valves, this reference from the page Danger triangle of the face,

Zhang J, Stringer MD (July 2010). "Ophthalmic and facial veins are not valveless". Clin. Experiment. Ophthalmol. 38 (5): 502–10. doi:10.1111/j.1442-9071.2010.02325.x. PMID 20491800.

indicates that these veins do generally have valves, and appears to provide other reasons for why this is a dangerous region of the face.

I suggest the article be edited to remove the statement about these veins not having valves. Smedley7 (talk) 07:56, 16 February 2017 (UTC)[reply]

Hi Smedley7! Whilst WP:MEDMOS generally prefers secondary sources to primary sources, this particular study is directly relevant to the article. I have put Template:Citation needed by all valve claims in the article - if you want to include the study, I would suggest removing the current mentions of the lack of valves (as the study has nothing to say on valves in the angular vein). Thanks! Bibeyjj (talk) 12:47, 30 November 2021 (UTC)[reply]