Slideshow: Clavicle

Slideshow: Clavicle

The Funky Professor videos can be viewed here;
http://publishing.rcseng.ac.uk/journal/video?doi=10.1308%2Fvideo.2016.1.10&videoTaxonomy=FUNK

1. The Clavicle

2. The Clavicle is a long bone
It is horizontally placed

3. The Clavicle is a long bone
It is horizontally placed

4. The medial end of the Clavicle articulates with the
manubrium at the Sternoclavicular Joint

5. The lateral end of the Clavicle articulates with the
acromion of the scapula at the Acromioclavicular Joint

6. The Clavicle is divided into thirds along its length
Undersurface of Right Clavicle

7. Lateral Third
The lateral third is flattened and expanded
Undersurface of Right Clavicle

8. Medial Third
The medial third is rounded
Undersurface of Right Clavicle

9. The Clavicle is curved convex forwards at its medial end
Lateral
Medial
Posterior
Anterior

10. The Clavicle is concave forwards at its lateral end
Lateral
Medial
Posterior
Anterior

11. There are a number of impressions on the undersurface
Lateral
Medial
Posterior
Anterior

12. This area gives attachment to the Trapezoid ligament
Lateral
Medial
Posterior
Anterior
This is one of the two coracoclavicular ligaments that
stabilise the acromioclavicular joint

13. This area gives attachment to the Conoid ligament
Lateral
Medial
Posterior
Anterior
This is one of the two coracoclavicular ligaments that
stabilise the acromioclavicular joint

14. This area gives attachment to the costoclavicular ligament that
arises from the first costal cartilage and first rib
Lateral
Medial
Posterior
Anterior
It stabilises the sternoclavicular joint

15. Sternoclavicular Joint

16. Manubrium
Clavicle
Manubrium
Costoclavicular Ligament anterior fibres

17. Manubrium
Clavicle
Manubrium
Costoclavicular Ligament posterior fibres

18. Manubrium
Clavicle
Manubrium
Anterior Sternoclavicular Ligament

19. Manubrium
Clavicle
Manubrium
Interclavicular Ligament

20. Manubrium
Clavicle
Manubrium
Interclavicular Ligament

21. Manubrium
Clavicle
Manubrium
Section through Sternoclavicular Joint

22. Manubrium
Clavicle
Manubrium
Section through Sternoclavicular Joint

23. Manubrium
Clavicle
Manubrium
Section through Sternoclavicular Joint
Articular Disc

24. Muscles that attach to the Clavicle

25. Muscles that attach to the Clavicle
Lateral
Medial
Posterior
Anterior
Deltoid

26. Muscles that attach to the Clavicle
Lateral
Medial
Posterior
Anterior
Pectoralis Major

27. Muscles that attach to the Clavicle
Lateral
Medial
Posterior
Anterior
Subclavius

28. Muscles that attach to the Clavicle
Lateral
Medial
Posterior
Anterior
Trapezius

29. Muscles that attach to the Clavicle
Lateral
Medial
Posterior
Anterior
Sternohyoid

30. Summary of Muscles that attach to Clavicle
Deltoid
Pectoralis Major
Subclavius
Sternohyoid
Sternocleidomastoid
Trapezius

31. Lateral Chest Wall
Deltoid
Origin Lateral third of clavicle,
acromion, and spine of scapula
InsertionDeltoid tuberosity on lateral
shaft of humerus
Action Anterior part: flexes and
internally rotates arm; Middle
part: abducts arm; Posterior
part: extends and externally
rotates arm
Nerve SupplyAxillary nerve (C5 and C6)
Blood SupplyDeltoid branch of
thoracoacromial artery

32. Anterior Chest Wall
Pectoralis Major
Origin Clavicular head: anterior
surface of medial half of
clavicle; Sternocostal head:
anterior surface manubrium &
sternum, superior 6 costal
cartilages, and aponeurosis of
external oblique muscle
Insertion Lateral lip of bicipital groove of
humerus
Action Clavicular head: flexes &
adducts arm
Sternal head: adducts &
internally rotates arm
Nerve SupplyLateral and medial pectoral
nerves (C5, C6, C7, C8, and T1)
Blood Supplypectoral branch of
thoracoacromial trunk

33. Subclavius
Origin Costochondral junction 1
st

rib
Insertion Subclavian groove inferior
surface middle clavicle
Action Depresses clavicle
Nerve SupplyNerve to subclavius C5, 6
Blood SupplyClavicular branch of
thoraco-acromial artery
and suprascapular artery
Anterior Chest Wall

34. Posterior Chest Wall
Trapezius
Origin Medial third of superior nuchal
line; external occipital
protuberance, nuchal ligament,
and spinous processes of thoracic
vertebrae
Insertion Lateral third of clavicle, acromion,
and spine of scapula
Action superior fibers elevate, middle
fibers retract, and inferior fibers
depress scapula
Nerve SupplySpinal root of accessory nerve (CN
XI) (motor) and cervical nerves (C3
and C4) (pain and proprioception)
Blood SupplyTransverse cervical artery