The clavicle is a sigmoid-shaped long bone with a convex surface along its medial end when observed from cephalad position. • In thin individuals, it is visible under the skin. Discover (and save!) The clavicle is the first bone in the body to ossify, around the fifth fetal week, but the medial physis does not fuse until young adulthood at ages 22 to 25. Together with the shoulder blade, it makes up the shoulder girdle. The medial end also gives attachment to the following structures: The shaft (or diaphysis, or body) refers to the middle part of any long bone. J Bone Joint Surg Am. The bone begins to break down at a faster rate than it is able to heal and form new bone cells. OrthoInfo. In: StatPearls [Internet]. One of the bones that meet at the shoulder is the clavicle, which is also known as the collarbone. Paired bone, triangular in shape, articulating with the clavicle and humerus; it protects the thorax and serves as … The clavicles, or collarbones, are a pair of long bones that connect the scapula to the sternum. Clavicle. Clavicle 3D models ready to view, buy, and download for free. The clavicle is slender bone with two curves, giving it an “S” shape. Harvard Health Publishing. For questions regarding business inquiries. 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. x-ray of a clavicle fracture. Anatomy of the clavicle and scapula. The clavicle is a bone of elongated shape, difficult to define, it varies on the various points of extended from the bone definitely flattened from top to bottom in its external part, the clavicle swells to become prismatic and triangular in its internal half. It serves as a connection between the axial and appendicular skeleton in conjunction with the scapula, and each of these structures forms the pectoral girdle. Updated December 2016. The clavicle (also collarbone, Latin: clavicula) is a paired long bone extending between the sternum and the scapula. Clavicle Anatomy The clavicle bone resembles a crankshaft, extending medially to the manubrium and laterally to the acromion The bone is “S” shaped medial portion concave lateral portion convex The “S” shape serves to give the bone elasticity and ability to shock absorb . Updated on December 08, 2020 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. 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. It receive… Updated April 2019. Common conditions associated with the clavicle include the following. When facing forward, its medial part is convex, while its lateral aspect is concave. SEBASTIAN KAULITZKI/SCIENCE PHOTO LIBRARY / Getty Images, The clavicle joins the scapula, or shoulder blade, and sternum to form two joints on each side of the body, which are:, The relative size of the clavicle leaves it particularly susceptible to fracture. Medically reviewed by Anita C. Chandrasekaran, MD, MPH, Medically reviewed by Jonathan Cluett, MD, Medically reviewed by Erin Pereira, DPT, OCS, Medically reviewed by Laura Campedelli, PT, DPT, Acromioclavicular (AC) Joint Sprain or Separation, Common Causes and Treatments for a Separated Shoulder, Everything You Need to Know About Broken Collarbones, Sternoclavicular Joint Sprain or Dislocation, How to Treat Injuries to the Sternoclavicular (SC) Joint, Distal Clavicle Osteolysis (Weightlifter’s Shoulder), How to Understand and Treat Injuries of the Distal Clavicle, AC Joint Arthritis Symptoms and Treatment, Causes of Collarbone Pain and Treatment Options, Pectoral Girdle: Anatomy, Function, and Treatment, What Does Arthritis Look Like? Thank you, {{form.email}}, for signing up. The clavicle is the only long bone in the body that lies horizontally. The thickness of cortical and medullary bone of 70 slices was analyzed from freshly plastinated clavicles with implants in place. Both vessels are separated from the bone by the subclavius muscle although this muscle is fleshy and frequently torn in traumatic injuries. It has a softer trabecular tissue inside with a hard shell of compact bone. It is a also flatter compared to the more rounded contour of most long bones, and is the only long bone to lie horizontally. superiorly - the interclavicular ligament. The clavicle can be described two surfaces, two borders and two ends. Although it is a long bone, the clavicle lacks an internal cavity (medullary cavity) where bone marrow would be housed in most long bones. It serves as a connection between the axial and appendicular skeleton in conjunction with the scapula, and each of these structures forms the pectoral girdle. AN Model Viewer. The clavicle is a bone with a complex structure that has an important role in the stability and movement of the shoulder girdle. This is important in order to distinguish medial clavicle physeal injuries from fractures in this age group. … 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. Fax: 00‐33‐1‐43‐3122‐79. There are two clavicles, one on the left and one on the right. your own Pins on Pinterest It provides structural support between the shoulder and rest of the skeleton, and is one of the most frequently fractured bone in the body. MOUNTAIN DOCTOR. The area surrounding the joint gives attachment to the fibrous joint capsule. The middle third of the clavicle is most commonly fractured, accounting for about 80% of all cases of clavicle fractures.. Clavicular anatomy and the applicability of precontoured plates.  Immediately above the first rib  The bone has a cylindrical part called shaft, and two ends, lateral and medial. The clavicle is an elongated, S-shaped bone that rests horizontally at the sternum across the upper part of the ribcage, and the acromial end of the scapula. Osteolysis, or bone degeneration, can easily occur at the end of the clavicle due to the high degree of stress and repetitive forces placed through the small surface area of the acromioclavicular joint, especially with heavy lifting such as bench press or military press. The clavicle can be palpated along its length, and can is visible under the skin in a thin person. Fracture of the clavicle can occur from a fall landing on an outstretched hand or through a direct blow to the shoulder. Jean‐Luc Voisin. The sternal or medial end of the clavicle has a large triangular facet for articulation with the clavicular notch on the manubrium of the sternum. ... bone clavicula humerus human biology schlusselbein ... Bluelink Anatomy - University of Michigan pro. The clavicle connects the shoulder to the rest of the skeleton. Ⓒ 2021 About, Inc. (Dotdash) — All rights reserved, Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Hospital for Special Surgery. Interestingly, the clavicle is the only long bone that lies horizontally in the human body. • It has a slight S-shaped curve.  Transmits the weight of the limb to the sternum. [ Illustration / Superior View] Acromial or lateral end (extremitas acromialis) is the flattened end of … Dec 10, 2013 - This Pin was discovered by Amber Garcia. Author information: (1)Department of Orthopaedics, University Hospitals Case Medical Center, Case Western Reserve University, 645 Hannah House, 11100 Euclid Avenue, Cleveland, OH 44106, USA. 2007 Oct;89(10):2260-5. Check out the 3D app at http://AnatomyLearning.com. Though not as lar … Anatomy, Shoulder and Upper Limb, Clavicle Review. The acromial or lateral end of the clavicle has an oval facet for articulation with the acromion of the scapula to form the acromioclavicular joint. The inferior aspect of the medial end is marked by a rough oval depression for the attachment of the costoclavicular ligament. The clavicle is actually a long bone of the body although it is short in length. The female clavicle was shorter, less curved, and had a lower concentration of calcium than the male clavicle. Read our, Medically reviewed by Mohamad Hassan, PT, DPT, Medically reviewed by Stuart Hershman, MD. Corresponding Author. Its medial end articulates with the manubrium of the sternum at the sternoclavicular joint. The lateral end of the clavicle has landmarks that serve as the attachment sites for the coracoclavicular ligament: The coracoclavicular ligament is a very strong ligament that connects the clavicle with the coracoid process of the scapula. This video covers the anatomy, location and function of the clavicle bone, also called the collarbone. In recent years, morphological stud-ies of the clavicle have aroused great interest among researchers. This articulation forms the sternoclavicular joint. Complications can include a collection of air in the pleural space surrounding the lung (pneumothorax), injury to the nerves or blood vessels in the area, and an unpleasant appearance. Clavicle Anatomy : Muscle Attachment & Collarbone Fracture The clavicle, or collarbone, a long bone with a shaft and two ends, it can be easily palpated, and it is one of the most ordinarily fractured bones in the body. It is a ligament of the sternoclavicular joint. The sternoclavicular joint, between the clavicle and sternum, can become dislocated with injury to the front of the shoulder, causing pain and swelling around the injured area., The end of the clavicle, or distal portion, that forms the acromioclavicular joint can become irritated and inflamed. Sharp pain commonly occurs with overhead and pushing movements of the arm and shoulder with a dull ache at rest.. Trauma to the acromioclavicular joint, such as a direct blow to the front of the shoulder or falling and landing on an outstretched hand, can injure the ligaments holding the acromion and clavicle together. The clavicle acts as a strut that keeps the scapula in place so that the upper limb can hang freely. Please contact: participates in attaching the upper limb to the trunk, by being a part of the shoulder girdle; protects neurovascular structures underneath that supply the upper limb; transmits force from the upper limb to the axial skeleton. 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). The calcium bone density was analyzed in 300 cross-sectional samples of 100 specimens. American Academy of Orthopedic Surgeons. In human anatomy, the clavicle or collar bone is classified as a long bone that makes up part of the shoulder girdle (pectoral girdle). The lateral end of the clavicle articulates with the acromion of the scapula at the acromioclavicular joint. The clavicle and scapula together are collectively referred to as the pectoral girdle, or shoulder girdle. Depending on the extent of your condition, rehabilitation for conditions associated with the clavicle or associated joints include the following: Sign up for our Health Tip of the Day newsletter, and receive daily tips that will help you live your healthiest life. Relevant Anatomy. Saunders/Elsevier; 2014:347-352. The clavicle can be palpated along its length, and can is visible under the skin in a thin person. Kristen Gasnick, PT, DPT, is a health writer and a physical therapist at Holy Name Medical Center in New Jersey. The clavicle is slender bone with two … There are two clavicles, one on the left and one on the right. Chapter 7; Upper Limb. for more anatomy content please follow us and visit our website: www.anatomynote.com. bones of the shoulder Anterior view of the bones of the right shoulder, showing the clavicle (collarbone), scapula (shoulder blade), and humerus (upper arm bone). Clavicle Bone Marking: Sternal or medial end (extremitas sternalis) is the rounded end of the clavicle that articulates with the manubrium of the sternum. Article Media. Clavicle, a neglected bone: Morphology and relation to arm movements and shoulder architecture in primates. Acts as a strut that keeps the scapula to the shoulder girdle has three functions. 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