Podcast
Questions and Answers
What is unique about the clavicle compared to other long bones?
What is unique about the clavicle compared to other long bones?
Which part of the clavicle articulates with the acromion process?
Which part of the clavicle articulates with the acromion process?
What type of ossification process occurs in the clavicle?
What type of ossification process occurs in the clavicle?
What feature distinguishes the inferior surface of the medial portion of the clavicle?
What feature distinguishes the inferior surface of the medial portion of the clavicle?
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At what stage of development does the clavicle first begin to ossify?
At what stage of development does the clavicle first begin to ossify?
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Study Notes
Clavicle Overview
- Collarbone, located horizontally
- No medullary cavity
- Membrocartilaginous ossification
- May be pierced by a cutaneous nerve (intermediate supraclavicular nerve)
Clavicle Parts
- Two ends (medial/sternal & lateral/acromial)
- Shaft
Clavicle Shaft
- Curved (medial 2/3rd round & convex, lateral 1/3rd flattened & concave)
- Flattened inferior surface
- Subclavian groove in middle third
Clavicle Medial/Sternal End
- Saddle-shaped articular surface
- Sternoclavicular joint with the manubrium
- Fibrous attachment
- Articulation disc
- Interclavicular ligament
Clavicle Lateral/Acromial End
- Flattened, downward facing
- Oval facet articulates with medial margin of acromion
- Acromioclavicular joint
- Fibrous capsule attachment
Clavicle Additional Features
- Subcutaneous throughout
- First to ossify, last to completely ossify at about 25 years old
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Description
This quiz covers the anatomy and features of the clavicle, also known as the collarbone. Learn about its structure, including the two ends, shaft, and its various articulations. Test your knowledge on the unique characteristics and ossification of this essential bone.
