hypothenar eminence hypothenar eminence the hypothenar muscles are a group of three muscles of the palm that control the motion of the little finger. carpal tunnel and thenar and hypothenar eminences hypothenar eminencethe mucous sheaths of the tendons on the front of the wrist and digits. (hypothenar eminence labeled at center right.)transverse section across the wrist and digits. (muscles of little finger labeled at upper right.)detailsinsertion5th metacarpal and proximal phalynxarteryulnar arterynervedeep branch of ulnar nerveactionscontrol movement of the 5th digitidentifierslatineminentia hypothenarista98a01.2.07.024ta2307fma61523anatomical terms of muscle the three muscles are: abductor digiti minimi flexor digiti minimi brevis opponens digiti minimi structure the muscles of hypothenar eminence are from medial to lateral: opponens digiti minimi flexor digiti minimi brevis abductor digiti minimi the intrinsic muscles of hand can be remembered using the mnemonic, "a of a of a" for, abductor pollicis brevis, opponens pollicis, flexor pollicis brevis (the three thenar muscles), adductor pollicis, and the three hypothenar muscles, opponens digiti minimi, flexor digiti minimi brevis, abductor digiti minimi. clinical significance "hypothenar atrophy" is associated with the lesion of the ulnar nerve, which supplies the three hypothenar muscles. hypothenar hammer syndrome is a vascular occlusion of this region.