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 If you want to solidify your knowledge on this topic, start training at www.kenhub.com! We offer you an engaging and guided way to get ready for you next Anatomy exam. It is like having your on personal ANATOMY TUTOR, guiding you every step of the way. See you there!

1. Muscles
of the arm

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3. forearm muscles arm muscles

4. 4
armmuscles
Biceps brachii

5. 4
armmuscles
Biceps brachii
Triceps brachii

6. 4
armmuscles
Biceps brachii
Triceps brachii
Brachialis

7. 4
armmuscles
Biceps brachii
Triceps brachii
Brachialis
Anconeus

8. Biceps brachii
short head
long head
2 heads

9. Long head of the
biceps brachii

10. Long head of the
biceps brachii
LATIN
Tuberculum
supraglenoidale
Supraglenoid tubercle
origin

11. Short head of the
biceps brachii

12. LATIN
Processus coracoideus
Coracoid process
origin
Short head of the
biceps brachii

13. LATIN
Tuberositas radii
Radial tuberosity
Biceps brachii
insertion

14. Biceps brachii
innervation
LATIN
Nervus musculocutaneus
Musculocutaneous
nerve (C5-C6)

15. Triceps brachii
3 heads
lateral head
long head
medium
head

16. The proximal part of the
triceps is partly covered
by the deltoid.

17. Triceps brachii
long head

18. LATIN
Tuberculum
infraglenoidale
Infraglenoid tubercle
origin
Triceps brachii
long head

19. Triceps brachii
medial head

20. origin
Triceps brachii
medial head
LATIN
Corpus humeri
Humerus (shaft)

21. Triceps brachii
lateral head

22. origin
Triceps brachii
lateral head
LATIN
Corpus humeri
Humerus (shaft)

23. Triceps brachii
insertion
Olecranon

24. Radial nerve (C6-C8)
!
LATIN
Nervus radialis
innervation
Triceps brachii

25. “Behind every great
biceps brachii, there s
a great brachialis”.
Brachialis
!
!
Brachialis lies under
the biceps brachii.

26. Brachialis

27. Brachialis
origin
LATIN
Corpus humeri
Humerus (shaft)

28. Brachialis
insertion
LATIN
Tuberositas ulnae
Tuberosity of the
ulna

29. Brachialis
innervation
LATIN
Nervus
musculocutaneus
Musculocutaneous
nerve (C5-C7)
LATIN
Nervus radialis
Radial nerve (C5-C6)
70-80%
of people
double innervation

30. Anconeus

31. Anconeus
LATIN
Epicondylus lateralis
Lateral epicondyle
origin

32. Anconeus
insertion
LATIN
Olecranon ulnae
Olecranon of the ulna

33. LATIN
Nervus radialis
Radial nerve (C6-C8)
Anconeus
innervation

34. Note this:

35. Anconeus Triceps brachii

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