anular part of fibrous digital sheath of digits of hand and foot

an·u·lar part of fi·brous dig·i·tal sheath of digits of hand and foot

[TA] one of the five circular fibrous bands or pulleys (A1-A5) of the fibrous sheaths of the fingers and the corresponding structures of the toes attached to the shaft of the proximal and middle phalanges and associated joint capsules. Synonym(s): pars anularis vaginarum fibrosarum digitorum manus et pedis [TA], anular ligament of digits, anular pulley, anulus of fibrous sheath, ligamentum anulare digitorum