clavicle

Examples of clavicle in the following topics:

• Clavicle Fracture

  • A clavicle fracture is a bone fracture in the clavicle or collarbone.
  • A clavicle fracture is a bone fracture in the clavicle or collarbone .
  • Clavicles are the most commonly broken bone in the human body.
  • Children and infants are particularly prone to clavicle fracture.
  • The clavicle consists of a medial end, shaft, and a lateral end.

• Clavicle

  • The clavicle or collar bone is a long, curved bone on the upper portion of the shoulder that connects with the scapula and the sternum.
  • Laterally, the clavicle is flattened and attaches to the acromion process of the scapula forming the acromioclavicular joint.
  • The shaft of the clavicle acts as the origin and attachment point for numerous muscles and ligaments.
  • The clavicle in males is typically thicker and longer in males to account for the larger muscle mass operating through the clavicle.
  • The left clavicle, viewed from above.

• Scapula

  • The scapula, or shoulder bone, is a flat, roughly triangle-shaped bone that connects to the humerus and the clavicle.
  • The scapula articulates with the clavicle trhough the acromion process, a large projection located superiorly on the scapula forming the acromioclavicular joint.

• Muscles of the Shoulder

  • Two other joints make up the shoulder; the acromioclavicular joint of the clavicle and scapula which allows the arm to be raised above the head, and the sternoclavicular joint of the clavicle and sternum which plays an important role in facilitating movements of the upper arm and providing connection between the upper arm and the rest of the skeleton.
  • It attaches to the clavicle and scapula.
  • Intrinsic muscles originate from the scapula or clavicle and attach to the humerus.
  • Attachments – The deltoid muscle originates from the scapula and clavicle and attaches to the lateral surface of the humerus.
  • Attachments – The clavicular region originates from the clavicle and the sternocostal region originates from the sternum and the fascia of the oblique muscles of the abdomen, both attach to the humerus.

• Rib Fracture, Dislocation, and Separation

  • The first rib is rarely fractured because of its protected position behind the clavicle (collarbone).
  • A shoulder separation occurs where the collarbone (clavicle) meets the shoulder blade (scapula).
  • When ligaments that hold the AC (acromioclavicular) joint together are partially or completely torn, the outer end of the clavicle may slip out of place, preventing it from properly meeting the scapula.
  • However, if ligaments are severely torn, surgical repair may be required to hold the clavicle in place.

• Bone Development

  • It is involved in the formation of the flat bones of the skull, the mandible, and the clavicles.
  • All of the bones of the body, except for the flat bones of the skull, mandible, and clavicles, are formed through endochondral ossification .

• Thoracic Cage: Sternum

  • The manubrium is the most superior region of the sternum and articulates with the clavicles or collarbones and the first pair of ribs.

• Veins of the Head and Neck

  • The external jugular vein passes down the neck and underneath the clavicle before draining into the subclavian vein.

• Human Appendicular Skeleton

  • The pectoral girdle bones, providing the points of attachment of the upper limbs to the axial skeleton, consists of the clavicle (or collarbone) in the anterior, as well as the scapula (or shoulder blades) in the posterior .
  • The clavicles, S-shaped bones that position the arms on the body, lie horizontally across the front of the thorax (chest) just above the first rib.
  • (a) The pectoral girdle in primates consists of the clavicles and scapulae.

• Rotator Cuff Injury and Dislocated and Separated Shoulder

  • A separated shoulder occurs where the collarbone (clavicle) meets the shoulder blade (scapula).
  • When ligaments that hold the AC (acromioclavicular) joint together are partially or completely torn, the outer end of the clavicle may slip out of place, preventing it from properly meeting the scapula.
  • However, if ligaments are severely torn, surgical repair may be required to hold the clavicle in place.