Pronator Teres

• Pronator Teres:

  • Forms medial border cubital fossa
  • Two heads & most lateral of superficial forearm flexors
• O (origin):

  Humeral head:

  • medial supracondylar ridge (lower aspect)
  • adjacent intermuscular septum and common flexor tendon (CFT) on medial epicondyle

  A) Pronator teres

  B) humeral

  
• R (direction):

  • Laterally and downwards

  A) Pronator teres

  
• I (insertions):

  • Middle of lateral surface of radius (flattened oval area)

  A) Pronator teres

  
• A (actions):

  • Pronation of forearm
  • Weak flexor of elbow

  A) Pronator teres

  
• NS (nerve supply):

  • Median nerve (C5 - T1)

  A) Pronator teres

  
• O (origin):

  Ulnar head:

  • pronator ridge inferior to coronoid process on ulna

  A) Pronator teres

  B) ulnar