Abductor Digiti Minimi

• Abductor Digiti Minimi:

  • Most superficial of hypothenar muscles

  
• O (origin):

  • Pisiform
  • pisohamate and pisometacarpal ligaments
  • tendon of Flexor carpi ulnaris

  A) Abductor Digiti Minimi

  
• R (direction):

  • Distally

  A) Abductor Digiti Minimi

  
• I (insertion):

  • Medial side of proximal phalanx of 5th finger and Dorsal Digital Expansion

  A) Abductor Digiti Minimi

  
• A (action):

  • Abducts the 5th finger
  • assists flexion of 5th metacarpophalangeal joint

  A) Abductor Digiti Minimi

  
• NS (nerve supply):

  • Deep branch ulnar nerve (C7 - T1)

  A) Abductor Digiti Minimi