Anatom3DInfraclavicular nodes
Nodi infraclaviculares (deltopectorales) · Podklíčkové uzliny
Lymphatic & immune
Looks like
A few lymph nodes in the groove between the deltoid and the pectoralis major, beside the cephalic vein.
What it does
Filter lymph from the thumb side of the arm and pass it to the apical axillary nodes.
Keeping it well
A lump below the collarbone can be one of these nodes; if hard or growing it needs a doctor.