Its lateral end is formed by intramembranous ossification while medially it is formed by endochondral ossification. Muscles and ligaments that attach to the collarbone include: A vertical line drawn from the mid-clavicle called the mid-clavicular line is used as a reference in describing cardiac apex beat during medical examination. It consists of a mass of cancellous bone surrounded by a compact bone shell. A doubly curved long bone that forms part of the shoulder girdle. This section was developed for 'speed learning' of medical terminology. Clavicle: The bone extending from the breastbone (sternum) at the base of the front of the neck to the shoulder. MEDICAL TERM Instead of this Term / Phrase LAY TERMINOLOGY Use this Term / Phrase < Less than > Greater than Abdomen Belly, stomach ... Clavicle Collarbone Clinical Pertaining to medical care [6], The earliest tetrapods retained this arrangement, with the addition of a diamond-shaped interclavicle between the base of the clavicles, although this is not found in living amphibians. The lateral third of the shaft has two borders and two surfaces. The resulting compact bone is known as a periosteal collar. n. 1. The compact forms as the layer of fascia covering the bone stimulates the ossification of adjacent tissue. Animation. The clavicle (or collarbone) is a long, thin bone at the base of the neck, located between the shoulder blade (scapula) and the rib cage (sternum). In young athletes, the damage most commonly occurs at the labrum.To stabilize the shoulder after dislocation, a type of surgery known as a Bankart repair can attach the labrum to the joint capsule to hold the ball in place. Martin, A.J. If the bump is located at either end of the clavicle, it could be caused by damage from osteoarthritis (OA Modern medical terms and terminology provides such precision and specificity. Position of collarbone (shown in red). Try to avoid complex medical terms and simplify the information as much as possible. The most common site of fracture is the junction between the two curvatures of the bone, which is the weakest point. In most cases, the direct hit occurs from the lateral side towards the medial side of the bone. clavicle synonyms, clavicle pronunciation, clavicle translation, English dictionary definition of clavicle. Learn more. It is also known as the sternal end. It has a rounded medial end and a flattened lateral end. [4], The left clavicle is usually longer and not as strong as the right clavicle. However, analyses of the clavicle in extant primates suggest that the low position of the scapula in humans is reflected mostly in the curvature of the medial portion of the clavicle rather than the lateral portion. The cancellous bone forms via two ossification centres, one medial and one lateral, which fuse later on. It serves as a rigid support from which the scapula and free limb suspended; an arrangement that keeps the upper limb away from the thorax so that the arm has maximum range of movement. How to use subclavian in a sentence. The cleithrum disappeared early in the evolution of reptiles, and is not found in any living amniotes, but the interclavicle is present in most modern reptiles, and also in monotremes. In these cases, the bones need to be moved and secured in order to heal properly. pg. MedicineNet does not provide medical advice, diagnosis or treatment. There are two clavicles, one on the left and one on the right. The collarbone serves several functions:[3]. CS1 maint: multiple names: authors list (. The shape of the clavicle varies more than most other long bones. [3] The collarbone is a large doubly curved long bone that connects the arm to the trunk of the body. Subclavian definition is - of, relating to, being, or inserted into a part (such as an artery, vein, or nerve) located under the clavicle. The clavicles fused in some theropod dinosaurs to form a furcula, which is the equivalent to a wishbone.[8]. 2. The clavicle first appears as part of the skeleton in primitive bony fish, where it is associated with the pectoral fin; they also have a bone called the cleithrum. This results in the sternocleidomastoid muscle lifting the medial aspect superiorly, which can result in perforation of the overlying skin. STUDY. Together with the shoulder blade, it makes up the shoulder girdle. A doubly curved long bone that forms part of the shoulder girdle. A broken collarbone is a common injury, particularly in children and young adults. The clavicle, or collarbone, is a slender, S-shaped bone approximately 6 inches (15 cm) long bone that serves as a strut between the shoulder blade and the sternum (breastbone). From the roughly pyramidal sternal end, each collarbone curves laterally and anteriorly for roughly half its length. One of the bones that meet at the shoulder is the clavicle, which is also known as the collarbone. Its medial end articulates with the manubrium sterni at the sternoclavicular joint; its lateral end with the acromion of the scapula at the acromioclavicular joint. This part of the bone is similar in A. afarensis and it is thus possible that this species had a high shoulder position similar to that in modern humans. (The medical term for this is a displaced fracture). Arthroscopy for Shoulder Dislocation . The most common source of a lump over the clavicle bone is a healing bone fracture. Clavicle Fractures: Types and Symptoms This article discusses types of clavicle surgery, managing post-surgical pain, and rehabilitation and recovery. The levator claviculae muscle, present in 2–3% of people, originates on the transverse processes of the upper cervical vertebrae and is inserted in the lateral half of the clavicle. Pertaining to free moving joints. [5]. One exception is the clavicle of AL 333x6/9 attributed to Australopithecus afarensis which has a well-preserved sternal end. (2006). Numerous classification systems have been proposed by different authors, but the Edinburg classification proposed by Robinson CM (1998) has been adopted for classification of, In radiological examination, there was a lesion on the head of right, Similarly XSITRAY-FE, XSITRAY-CL, XSITRAY-EA, XSITRAY-EH and XSITRAY-KN consists of 12 Femur, 28, Thoracic outlet syndrome usually targets the structures near the, In athletes, either professional or amateur [8],[9],[10] restoration of the, In regard to the neuronal anatomy and clinical experience, the combined interscalene-cervical plexus block seems to be an effective block and may be a promising method for sufficient surgical anesthesia in, Closed reduction with a clamp was attempted, but grasping the, In a previous study [7], two out of thirty-seven (5.4%) cases had cephalic vein crossed anteriorly and above the lateral third of the, He was indicated for repeat operative intervention and underwent a revision open right distal, The precipitating event is typically a direct to the lateral shoulder (being thrown over the handlebars); however, this mechanism more commonly causes A joint injuries and, Moreover, we investigated the effect of tunnel positions on the quality of AC joint reduction by standardizing the various tunneling points on the, In 1972 Weaver and Dunn first described the treatment of AC dislocations through excision of the lateral border of the, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, FUNCTIONAL OUTCOME OF DISPLACED MIDSHAFT FRACTURE OF CLAVICLE USING LCP RECONSTRUCTION PLATE 3.5, Enostosis of Clavicle Causing Severe Dyspnea by Compressing the Trachea Externally: Case Report, XSITRAY: A Database for the Detection of Osteoporosis Condition, Inervacion del Musculo Subclavio: Un Estudio Anatomico, Flexible intramedullary nailing for fixation of displaced midshaft clavicle fractures, Ultrasound-Guided Combined Interscalene-Cervical Plexus Block for Surgical Anesthesia in Clavicular Fractures: A Retrospective Observational Study, Bipolar Dislocation of the Clavicle: A Report of Two Cases with Different Injury Patterns and a Literature Review, A Rare Anatomical Variation of the Termination of Right and Left Cephalic Veins, Diffuse Idiopathic Skeletal Hyperostosis (DISH) as a Cause of Failure Following Distal Clavicle Excision: A Case Report and Review of the Literature, The forgotten coracoid: A case report of a coracoid fracture in a male cyclist. Even though it is classified as a long bone, the collarbone has no medullary (bone marrow) cavity like other long bones, though this is not always true. The collarbone is long, thin, and located at the base of … Clavicle bone synonyms, Clavicle bone pronunciation, Clavicle bone translation, English dictionary definition of Clavicle bone. The collarbones are sometimes partly or completely absent in cleidocranial dysostosis. The sternum articulates (comes together) with the cartilages of the first … This type of fracture is fairly common—accounting for about 5 percent of all adult fractures. Reproductive Health Medical Definition of clavicle. At its lateral end it articulates with the acromion, a process of the scapula (shoulder blade), at the acromioclavicular joint. The shaft is divided into the medial two-thirds and the lateral one third. Define clavicle. Clavicle (collar bone) fractures are the most common injury sustained by newborns during birth. Definition and Overview. The clavicle, also referred to as the collar bone, is an elongated, S-shaped bone that sits between the shoulder and sternum at the top of the ribcage. Diagram of the human shoulder joint, front view, Diagram of the human shoulder joint, back view, Plain bone of short length that serves as a strut between the scapula and the sternum. In the medical history document for an insurance, the term collarbone might be used instead of clavicle. Most heal well with ice, pain relievers… A separated shoulder is an injury to the ligaments that hold your collarbone (clavicle) to your shoulder blade. It is a touchable bone, and in people who have less fat in this region, the location of the bone is clearly visible, as it creates a bulge in the skin. In a mild separated shoulder, the ligaments might just be stretched. See additional information. [6], Though a number of fossil hominin (humans and chimpanzees) clavicles have been found, most of these are mere segments offering limited information on the form and function of the pectoral girdle. However, it is one of the last bones to finish ossification at about 21–25 years of age. medical term clavicle. It receives its name from the Latin clavicula ("little key"), because the bone rotates along its axis like a key when the shoulder is abducted. A fractured clavicle is the medical term used when the collarbone is broken. It is occasionally pierced by a branch of the supraclavicular nerve. Arthroscopically Assisted Coracoclavicular Fixation Using a Single Flip Button Device Technique: What Are the Main Factors Affecting the Maintenance of Reduction? A direct hit to the collarbone will also cause a break. Most clavicle fractures occur when a fall onto the shoulder or an outstretched arm … Each clavicle runs transversely and forms a joint with the sternum on its medial end and the scapula on its lateral end. [7], In dinosaurs the main bones of the pectoral girdle were the scapula (shoulder blade) and the coracoid, both of which directly articulated with the clavicle. The medial part is thicker than the lateral. A shoulder dislocation injury occurs when the ball of the shoulder joint comes out of the socket.. Introduction to the Study of Dinosaurs. It then forms an even larger posterior curve to articulate with the acromion of the scapula. It is a touchable bone, and in people who have less fatin this region, the location of the bone is clearly visible, as it creates a bulge in the skin. These surface features are attachment sites for muscles and ligaments of the shoulder. ... or advice of a legal, medical… (in humans) either of two slender bones, each articulating with the sternum and a scapula and forming the anterior part of a shoulder; collarbone. It keeps the shoulder blade in position. The medial end of each clavicle is a smooth, rounded cylinder known as the sternal extremity, which forms the sternoclavicular joint with the manubrium of the sternum. Sometimes the lump is a lipoma, or a harmless fatty tumor that settles on top of the collarbone. One interpretation of this specimen, based on the orientation of its lateral end and the position of the deltoid attachment area, suggests that this clavicle is distinct from those found in extant apes (including humans), and thus that the shape of the human shoulder dates back to less than 3 to 4 million years ago. The lateral end is also known as the acromial end. A clavicle fracture, also known as a broken collarbone, is a bone fracture of the clavicle. Second Edition. Instead, conservative treatment — such as rest, ice and pain relievers — is often enough to relieve the pain. The condition is sometimes called weightlifter’s shoulder. This allows maximum range of movement of … In: Prentice WE. cle. Together with the shoulder blade, it makes up the shoulder girdle. Start studying Medical Term Chapter 4. A study measuring 748 males and 252 females saw a difference in collarbone length between age groups 18–20 and 21–25 of about 6 and 5 mm (0.24 and 0.20 in) for males and females respectively. Acting as a flexible, crane-like strut, it allows the scapula to move freely on the thoracic wall. Also called collarbone . The clavicle has many important functions: it connects the axial skeleton to the upper extremity; it contributes to the motion and stability of the upper extremity; and, with the subclavius muscle, it provides protection to the underlying neurovascular structures (i.e., subclavian vessels and brachial plexus).6,7 Malunion may impair these functions. a bone of the pectoral arch. A doubly curved long bone that forms part of the shoulder girdle.