clavicle
Sign in to saveThe clavicle, collarbone, or keybone is a slender, S-shaped long bone approximately long that serves as a strut between the shoulder blade and the sternum (breastbone). There are two clavicles, one on each side of the body. The clavicle is the only long bone in the body that lies horizontally. Together with the shoulder blade, it makes up the shoulder girdle. It receives its name from Latin clavicula 'little key' because the bone rotates along its axis like a key when the shoulder is abducted. The clavicle is the most commonly broken bone. It can easily be fractured by impacts to the shoulder
AI overview
Your clavicle, also called your collarbone, is a slender S-shaped bone that connects your shoulder blade to your breastbone and is the only long bone in your body that runs horizontally. Because of its position and the way it rotates when you move your arm, it's particularly vulnerable to breaking from impacts to the shoulder, making it the most commonly fractured bone in the body.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Bone.Name
- Clavicle (collarbone)
- Bone.Latin
- clavicula
- Bone.Image
- Female_clavicle.jpg
- Bone.Caption
- Human collarbone
- Bone.Image2
- Clavicle - anterior view.png
- Bone.Caption2
- Collarbone (shown in red)
via Wikipedia infobox
Article
17 sectionsContents
- Structure
- Medial end
- Lateral end
- Shaft
- Lateral region of the shaft
- Development
- Variation
- Functions
- Muscle
- Clinical significance
- Collarbone fracture
- Other animals
- In dinosaurs
- Additional media
- See also
- References
- External links
The clavicle, collarbone, or keybone is a slender, S-shaped long bone approximately long that serves as a strut between the shoulder blade and the sternum (breastbone). There are two clavicles, one on each side of the body. The clavicle is the only long bone in the body that lies horizontally. Together with the shoulder blade, it makes up the shoulder girdle. It receives its name from Latin clavicula 'little key' because the bone rotates along its axis like a key when the shoulder is abducted. The clavicle is the most commonly broken bone. It can easily be fractured by impacts to the shoulder from the force of falling on outstretched arms or by a direct hit.
==Structure== The collarbone is a thin doubly curved long bone that connects the arm to the trunk of the body. Located directly above the first rib, it acts as a strut to keep the scapula in place so that the arm can hang freely. At its rounded medial end (sternal end), it articulates with the manubrium of the sternum (breastbone) at the sternoclavicular joint. At its flattened lateral end (acromial end), it articulates with the acromion, a process of the scapula (shoulder blade), at the acromioclavicular joint.