1.3.2. The Clavicle Flashcards Preview

3rd Year - MSK Upper Limb Anatomy > 1.3.2. The Clavicle > Flashcards

Flashcards in 1.3.2. The Clavicle Deck (19)
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1
Q

What is the Clavicle more commonly known as?

A

The Collar Bone

2
Q

Where does the Clavicle extend between?

A

The Sternum and the Acromion of the Scapula

3
Q

What type of bone is the Clavicle classed as?

A

A long bone

4
Q

What are the 3 main functions of the Clavicle?

A
  1. Attaches the Upper Limb to the Trunk
  2. Protects the underlying Neurovascular structures supplying the Upper Limb
  3. Transmits force from the Upper Limb to the Axial Skeleton
5
Q

What shape is the Clavicle?

A

An “S” shape, facing forward:

  1. The Medial Aspect is Concave
  2. The Lateral Aspect is Convex
6
Q

What are the 3 divisions of the Clavicle?

A
  1. The Sternal (Medial) End
  2. The Shaft
  3. The Acromial (Lateral) End
7
Q

What is the function of the Large Facet, on the Sternal (Medial) End of the Clavicle?

A

Articulation with the Manubrium of the Sternum (at the Sternoclavicular Joint)

8
Q

What is the Inferior Surface of the Sternal (Medial) End of the Clavicle marked by?

A

Rough Oval Depressions for the Costo-Clavicular Ligament (A ligament of the Sternoclavicular Joint)

9
Q

What is the function of the Shaft of the Clavicle?

A

It acts as a point of Origin and Attachment for muscles

10
Q

What muscles are attached onto the Shaft of the Clavicle?

A
  1. Deltoid
  2. Trapezius
  3. Subclavius
  4. Pectoralis Major
  5. Sternocleidomastoid
  6. Sternohyoid
11
Q

What does the Acromial (Lateral) End of the Clavicle house?

A

A Small Facet

12
Q

What is the function of the Small Facet, housed in the Acromial (Lateral) End of the Clavicle?

A

It allows articulation between:
1. The Acromial (Lateral) End of the Clavicle
2. The Acromion of the Scapula
(The Acromioclavicular Joint)

13
Q

What 2 Ligaments attach onto the Acromial (Lateral) End of the Clavicle?

A
  1. Conoid Ligament

2. Trapezius Ligament

14
Q

Where does the Conoid Ligament attach onto the Clavicle?

A

The Conoid Tubercle

15
Q

Where is the Conoid Tubercle located?

A

The Medial part of the Coracoclavicular Ligament

16
Q

Where does the Trapezoid Ligament attach onto the Clavicle?

A

The Trapezoid Line

17
Q

Where is the Trapezoid Line located?

A

The Lateral part of the Coracoclavicular Ligament

18
Q

What is the function of the Coracoclavicular Ligament?

A

This is a very strong structure which effectively suspending the weight of the upper limb from the Clavicle

19
Q

Where is the weakest point in the Clavicle? (most common place of fracture during falls)

A

Between the Middle and Lateral 1/3’s of Clavicle

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