Thumb

The thumb is the first digit of the hand, next to the index finger.[upper-alpha 1] When a person is standing in the medical anatomical position (where the palm is facing to the front), the thumb is the outermost digit. The Medical Latin English noun for thumb is pollex (compare hallux for big toe), and the corresponding adjective for thumb is pollical.

Thumb
Bones of the thumb, visible at far left
Details
ArteryPrinceps pollicis artery
VeinDorsal venous network of hand
NerveDorsal digital nerves of radial nerve, proper palmar digital nerves of median nerve
LymphInfraclavicular lymph nodes[1]
Identifiers
Latinpollex
digitus I manus
digitus primus manus
MeSHD013933
TA98A01.1.00.053
TA2151
FMA24938
Anatomical terminology

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