1.3.2. The Clavicle Flashcards

1
Q

What is the Clavicle more commonly known as?

A

The Collar Bone

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2
Q

Where does the Clavicle extend between?

A

The Sternum and the Acromion of the Scapula

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3
Q

What type of bone is the Clavicle classed as?

A

A long bone

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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
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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
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6
Q

What are the 3 divisions of the Clavicle?

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

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

A

articulation with the manubrium ofsternum (at the sternoclavicular joint)

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8
Q

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

A

rough oval depressions for costo-clavicular ligament

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9
Q

What is the function of the Shaft of the Clavicle?

A

It acts as a point of Origin and Attachment for muscles

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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
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11
Q

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

A

A Small Facet

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12
Q

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

A

allows articulation between acromial end of clavicle and acromion of scapula
(The Acromioclavicular Joint)

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13
Q

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

A
  1. Conoid Ligament

2. Trapezius Ligament

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14
Q

Where does the Conoid Ligament attach onto the Clavicle?

A

The Conoid Tubercle

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15
Q

Where is the Conoid Tubercle located?

A

The Medial part of the Coracoclavicular Ligament

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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

very strong structure which effectively suspends 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