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free120/Block 2/Question#24 (21.0 difficulty score)
A 33-year-old man undergoes a radical ...
Branch of the thyrocervical trunk🔍
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hTsi ieoqsunt si kgnisa rfo het uclavsra lppysu fo hte iatpaohdryr lgsdan. aTth loudw eb het irfiorne yihtdor sertreia, cwhih riaes rofm eht coryhitclrave utknr.

weenathon  I originally chose vein because I was thinking maybe the hormone release couldn't be carried to the body anymore, but looking back the working of "moderate hemorrhaging" and vessels requiring ligation is what implies it's an artery. Just throwing that out there in case you thought like I did. +  



Why high PTH 200pg/ml (normal <60)? it should be primary hypoparathyroidism!




 +1  upvote downvote
submitted by niboonsh(280),

external carotid branch supplies the superior parathyroid glands as well........?

yng  Yes the superior part supplied by superior thyroid gland which is a branch of external carotid branch. +  
llamastep1  No they do not, parathyroids are supplied by the inferior thyroid arteries. https://teachmeanatomy.info/neck/viscera/parathyroid-glands/ +8  
suckitnbme  Superior thyroid artery does supply some blood to the parathyroids through anastomoses but the main vascular supply is from the inferior thyroid artery. +  



 +1  upvote downvote
submitted by t123(11),

PMID 8165531

Both superior thyroid (ext carotid) and inferior thyroid (thyrocervical) supply the parathryoids. Bad q...