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Muscles of the Arm | anatomy Kenhub

This is a presentation covering the origins, insertions and innervation of the muscles of the arm. We explain the following muscles:
- Biceps brachii
- Brachialis
- Triceps brachii
- Anconeus

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Muscles of the Arm | anatomy Kenhub

  1. 1. Muscles of the arm
  2. 2. © All illustrations are exclusive property of kenHub GmbH, and are protected by German and international copyright laws. All rights reserved. ! https://www.kenhub.com/
  3. 3. forearm muscles arm muscles
  4. 4. 4 armmuscles Biceps brachii
  5. 5. 4 armmuscles Biceps brachii Triceps brachii
  6. 6. 4 armmuscles Biceps brachii Triceps brachii Brachialis
  7. 7. 4 armmuscles Biceps brachii Triceps brachii Brachialis Anconeus
  8. 8. Biceps brachii short head long head 2 heads
  9. 9. Long head of the biceps brachii
  10. 10. Long head of the biceps brachii LATIN Tuberculum supraglenoidale Supraglenoid tubercle origin
  11. 11. Short head of the biceps brachii
  12. 12. LATIN Processus coracoideus Coracoid process origin Short head of the biceps brachii
  13. 13. LATIN Tuberositas radii Radial tuberosity Biceps brachii insertion
  14. 14. Biceps brachii innervation LATIN Nervus musculocutaneus Musculocutaneous nerve (C5-C6)
  15. 15. Triceps brachii 3 heads lateral head long head medium head
  16. 16. The proximal part of the triceps is partly covered by the deltoid.
  17. 17. Triceps brachii long head
  18. 18. LATIN Tuberculum infraglenoidale Infraglenoid tubercle origin Triceps brachii long head
  19. 19. Triceps brachii medial head
  20. 20. origin Triceps brachii medial head LATIN Corpus humeri Humerus (shaft)
  21. 21. Triceps brachii lateral head
  22. 22. origin Triceps brachii lateral head LATIN Corpus humeri Humerus (shaft)
  23. 23. Triceps brachii insertion Olecranon
  24. 24. Radial nerve (C6-C8) ! LATIN Nervus radialis innervation Triceps brachii
  25. 25. “Behind every great biceps brachii, there s a great brachialis”. Brachialis ! ! Brachialis lies under the biceps brachii.
  26. 26. Brachialis
  27. 27. Brachialis origin LATIN Corpus humeri Humerus (shaft)
  28. 28. Brachialis insertion LATIN Tuberositas ulnae Tuberosity of the ulna
  29. 29. Brachialis innervation LATIN Nervus musculocutaneus Musculocutaneous nerve (C5-C7) LATIN Nervus radialis Radial nerve (C5-C6) 70-80% of people double innervation
  30. 30. Anconeus
  31. 31. Anconeus LATIN Epicondylus lateralis Lateral epicondyle origin
  32. 32. Anconeus insertion LATIN Olecranon ulnae Olecranon of the ulna
  33. 33. LATIN Nervus radialis Radial nerve (C6-C8) Anconeus innervation
  34. 34. Note this:
  35. 35. Anconeus Triceps brachii
  36. 36. To learn anatomy with videos, interactive quizzes, articles and an online atlas ! https://www.kenhub.com

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