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3D - Muscles of the antebrachial region

Pronator teres

Pronator teres

Pronunciation

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Other Terms:
Musculus pronator teres, Muscle rond pronateur


Muscle parts
Humeral head; Ulnar head
Latin name
Musculus pronator teres
Latin muscle parts
Caput humerale; Caput ulnare
Group
Antebrachial muscle – anterior compartment – superficial group
Etymology
The muscle’s name in English is the rounded, or cylindrical, muscle that turns the hand palm downward. The word pronator comes from the Latin pronus, which means “inclined forward or lying face downward.” The word teres is Latin for “rounded or cylindrical.”
Origin
Slightly proximal to the medial epicondyle of humerus and from the common flexor tendon (humeral head); medial aspect of the coronoid process of the ulna (ulnar head)
Insertion
Lateral surface of radial shaft near its midpoint
Action
Pronation (it is the weaker of the two pronator muscles, only active during rapid, forcible pronation); weak flexor of elbow joint
Nerve supply
Median nerve (C6 and C7)
Blood supply
From proximal to distal, the muscle receives blood supply from the anterior ulnar recurrent artery, muscular branches from the ulnar artery, and muscular branches from the radial artery near its distal attachment.
Latin
Musculus pronator teres
French
Muscle rond pronateur

Structural Label Key

  1. Abductor digiti minimi on the hand
  2. Abductor pollicis brevis
  3. Abductor pollicis longus
  4. Adductor pollicis
  5. Anconeus
  6. Annular ligament
  7. Anterior antebrachial muscles
  8. Anterior brachial muscles
  9. Articularis Cubiti
  10. Biceps brachii
  11. Bones of the hand
  12. Brachial muscles
  13. Brachialis
  14. Brachioradialis
  15. Capitate
  16. Carpometacarpal joints
  17. Collateral interphalangeal ligaments
  18. Collateral metacarpophalangeal ligaments
  19. Common flexor sheath of upper limb
  20. Deep group of the ant. antebrachium
  21. Distal phalanges - hand
  22. Dorsal carpometacarpal ligaments
  23. Dorsal intercarpal ligaments
  24. Dorsal interossei of the hand
  25. Dorsal metacarpal ligaments
  26. Dorsal radiocarpal ligament
  27. Dorsal ulnocarpal ligament
  28. Elbow joints and ligaments
  29. Extensor carpi radialis brevis
  30. Extensor carpi radialis longus
  31. Extensor carpi ulnaris
  32. Extensor digiti minimi
  33. Extensor digitorum
  34. Extensor expansions of hand
  35. Extensor indicis
  36. Extensor pollicis brevis
  37. Extensor pollicis longus
  38. Extensor retinaculum
  39. Fibrous sheaths of digits of hand
  40. Flexor carpi radialis
  41. Flexor carpi ulnaris
  42. Flexor digiti minimi brevis - hand
  43. Flexor digitorum profundus
  44. Flexor digitorum superficialis
  45. Flexor pollicis brevis
  46. Flexor pollicis longus
  47. Flexor retinaculum of wrist
  48. Hamate
  49. Hand muscles
  50. Humerus
  51. Hypothenar muscles
  52. Intermetacarpal joints
  53. Intermetacarpal muscles
  54. Interosseous intercarpal ligaments
  55. Interosseous membrane of forearm
  56. Interosseous metacarpal ligaments
  57. Interphalangeal joints of hand
  58. Joint capsule
  59. Joints and ligaments
  60. Joints and ligaments of the carpal bones
  61. Joints and ligaments of the radius and ulna
  62. Lateral group of the post. antebrachium
  63. Lumbricals of hand
  64. Lunate
  65. Metacarpal 1
  66. Metacarpal 2
  67. Metacarpal 3
  68. Metacarpal 4
  69. Metacarpal 5
  70. Metacarpophalangeal joints
  71. Middle phalanges - hand
  72. Muscles - developmental approach
  73. Oblique cord
  74. Opponens digiti minimi
  75. Opponens pollicis
  76. Palmar aponeurosis
  77. Palmar carpometacarpal ligaments
  78. Palmar intercarpal ligaments
  79. Palmar interossei
  80. Palmar interphalangeal ligaments
  81. Palmar metacarpal ligaments
  82. Palmar metacarpophalangeal ligaments
  83. Palmar radiocarpal ligament
  84. Palmar ulnocarpal ligament
  85. Palmaris brevis
  86. Palmaris longus
  87. Pisiform
  88. Pisiform joint
  89. Pisohamate ligament
  90. Pisometacarpal ligament
  91. Posterior antebrachial muscles
  92. Posterior brachial muscles
  93. Pronator quadratus
  94. Pronator teres
  95. Proximal phalanges - hand
  96. Quadrate ligament
  97. Radial collateral ligament in the elbow joint
  98. Radial collateral ligament of the wrist joint
  99. Radial group of the post. antebrachium
  100. Radiate carpal ligament
  101. Radius
  102. Scaphoid
  103. Superficial flexor retinaculum
  104. Superficial group of the ant. antebrachium
  105. Supinator
  106. Tendon sheath of abductor pollicis longus and extensor pollicis brevis
  107. Tendon sheath of extensor carpi radialis longus an...
  108. Tendon sheath of extensor carpi ulnaris
  109. Tendon sheath of extensor digiti minimi
  110. Tendon sheath of extensor digitorum and extensor i...
  111. Tendon sheath of extensor pollicis longus
  112. Tendon sheath of flexor carpi radialis
  113. Tendon sheath of flexor pollicis longus
  114. Tendon sheaths of digits of hand
  115. Thenar muscles
  116. Trapezium
  117. Trapezoid
  118. Triceps brachii
  119. Triquetral
  120. Ulna
  121. Ulnar collateral ligament in the elbow joint
  122. Ulnar collateral ligament of the wrist joint
  123. Upper limb - bones of
  124. Upper limb joints and ligaments
  125. Upper limb muscles
  126. Wrist joint and ligaments