Clavicles

Definition

The clavicles, also known as collarbones, are long bones located horizontally across the top of the chest. They connect the sternum to the scapulae and play a crucial role in shoulder movement and stability.

5 Must Know Facts For Your Next Test

1. The clavicles provide structural support and protection to neurovascular structures passing from the neck to the upper limb.
2. Each clavicle has a sternal end that articulates with the manubrium of the sternum and an acromial end that connects with the acromion of the scapula.
3. Clavicles are essential for transmitting mechanical force from the upper limbs to the axial skeleton.
4. They serve as attachment points for several muscles, including the pectoralis major, deltoid, and trapezius.
5. Fractures of the clavicle are common injuries, often resulting from falls on an outstretched hand or direct trauma.

Review Questions

Related terms

sternum:

A flat bone located in the center of the chest that connects with ribs via costal cartilages.

scapula: A flat triangular bone located in the upper back that forms part of each shoulder joint.

acromion: The bony process on top of the scapula that forms a joint with the clavicle.