It has a softer trabecular tissue inside with a hard shell of compact bone. The clavicle is an unusual long bone with many unique embryologic features. The acromion of the scapula continues medially to become the scapular spine, whereas the lateral end of the clavicle becomes increasingly cylindrical as the shaft stretches medially. Ligament attached above to the upper and front part of the sternal end of the clavicle. Along with the scapula, the clavicle forms the shoulder or pectoral girdle, which connects the humerus arm to the axial skeleton. Clinical anatomy is the official journal of the american association of clinical anatomists and the british association of clinical anatomists. It is often involved in congenital and acquired disorders. A clavicle fracture is a break in the collarbone, one of the main bones in the shoulder.
Conoid tubercle tuberculum conoideum is a bump on the inferior surface of the bone, near the acromial end. Mar 23, 2015 the shoulder is the most mobile joint in the human body. In mbbs first year, anatomy comes as one of the subjects. Anatomy, shoulder and upper limb, clavicle statpearls. Clavicle bone synonyms, clavicle bone pronunciation, clavicle bone translation, english dictionary definition of clavicle bone. There is a printable worksheet available for download here so you can take the quiz with pen and paper.
The scapula is a triangular, flat bone, which serves as a site for attachment for numerous muscles. The collarbone is long, thin, and located at the base of the neck. Download 73 clavicle bone anatomy anatomy bones stock photos for free or amazingly low rates. A thorough knowledge about the features of the bones and their attachments acts as the basis of medical practice. The clavicle is a long bone it is horizontally placed 4. As such, the function of the clavicle is not to absorb damage but to transfer it to bigger bones. The coracoid process is a hooklike bony projection from the scapula. Most clavicle fractures occur when a fall onto the shoulder or an outstretched arm puts enough pressure on the bone that it snaps or breaks. Attaches the upper limb to the trunk as part of the shoulder girdle.
The clavicle collarbone meets the acromion in the acromioclavicular joint. Transmits force from the upper limb to the axial skeleton. Hard bone lump on collar bone clavicle cancer medical. Find highquality clavicle stock photos and editorial news pictures from getty images. A clear depiction of the bone structure surrounding the clavicle or collarbone. 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. The trapezius muscle, which is attached along the posterior surface of the bone. Clavicle and scapula quiz for anatomy and physiology. Apr 12, 2020 the clavicle is an elongated, sshaped bone that rests horizontally at the sternum across the upper part of the ribcage, and the acromial end of the scapula this bone is an important part of the skeletal system since it plays an essential role in everyday functional movement, serving as the connection between the axial skeleton and the pectoral girdle.
A clavicle fracture, also known as a broken collarbone, is a bone fracture of the clavicle. The humerus is the largest bone of the upper extremity and defines the human brachium arm. Upper limb bones are the first one to be studied in anatomy classes. This unlabeled quiz of the clavicle and scapula will test your knowledge on how to label the structures of these bones. Occasionally, the bone will break where it attaches at the ribcage or shoulder blade. Among other bone landmarks you can see in this image the major three areas of the clavicle bone which consist of the medial or sternal end photo source. The clavicle, or collarbone, is a long bone that serves as a strut between the shoulder blade and the sternum breastbone. It is the only long bone that lies horizontally, and has no medullary cavity. Anteriorly, the clavicle articulates with the sternum, thereby attaching the upper limb to the axial skeleton. 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 also serves as an important and easily located bony landmark due to its superficial location and projection from the trunk. Articulates medially with the manubrium sterni and laterally with the acromion of the scapula. In this article, we shall look at the anatomy of the clavicle its bony landmarks and clinical correlations. This type of fracture is fairly commonaccounting for about 5 percent of all adult fractures.
Dec 17, 2018 the humerus is the largest bone of the upper extremity and defines the human brachium arm. Fractured clavicle the student health provider has diagnosed a fracture break of your clavicle collarbone. Clavicle bones and surface anatomy of upper limb online. Learn all about the anatomical features of the clavicle with our flashcard images and videos. The clavicle itself acts as a strut between the scapula and the sternum, transferring impact forces to the axial skeleton. The inner end of the clavicle joins the sternum breastbone. 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. Shoulder scapula clavicle anatomy bones stock illustration images. Join a live hosted trivia game for your favorite pub trivia experience done virtually.
Eighty percent of fractures occur in the middle third of the bone. Apr 12, 2017 clavicle anatomy general features, attachments, development, clinical anatomy. Dec 7th, 2017 the clavicle or collarbone os clavicula is located superior to the first rib and runs horizontally from the manubrium of the sternum to the acromion of the scapula. The goal of clinical anatomy is to provide a medium for the exchange of current information between anatomists and clinicians. Since the axial skeleton has more cartilage and bones, it can absorb much more force than the clavicle itself. Clavicle anatomy general features, attachments, development, clinical anatomy. The clavicle see diagram is a long, thin bone located in the upper, front chest. It is comprised of two bones the clavicle and scapula. The clavicle serves as the sole bone structure connecting the axial skeleton to the shoulder girdle. Either of two slender bones in humans that extend from the manubrium of the sternum to the acromion of the scapula. Download premium images you cant get anywhere else. Traumatic, inflammatory, neoplastic, metabolic and many other miscellaneous lesions may also affect the bone. One of the bones that meet at the shoulder is the clavicle, which is also known as the collarbone.
The clavicle, commonly known as the collar bone, is a type of flat bone. The clavicle is an elongated, sshaped bone that rests horizontally at the sternum across the upper part of. This bone is located posteriorly on the back half of the body. Learn the anatomy of the clavicle and surrounding structures with these interactive quizzes and labeled diagrams. Viewed from the anterior position, the clavicle forms a convex curve at its medial end before forming a smaller concave curve near its lateral end. The cat skull is unusual among mammals in having very large eye sockets and a powerful and specialized jaw. Thousands of new, highquality pictures added every day. 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. Clinically oriented anatomy moore the quiz above includes the following bones for identification. One of the main functions of the collarbone is to hold the arms freely and supported, away from the trunk.
In comparisons of the tips of each bone, the facet of the clavicle is lateral and the facet of the acromion is anteromedial. The clavicle is a long bone of the shoulder girdle. Shoulder scapula clavicle anatomy bones illustrations and. Clavicle bone anatomy anatomy bones stock photos download. The clavicle is the most commonly fractured bone in the skeleton. Request pdf clavicle anatomy the clavicle is the bony link between the upper limb and the axial skeleton. Explore and learn about the clavicle with our 3d interactive anatomy atlas. Symptoms typically include pain at the site of the break and a decreased ability to move the affected arm. The shoulder complex, as it sounds, is a very complex area of the body. Protects the underlying neurovascular structures supplying the upper limb. Find clavicle stock images in hd and millions of other royalty free stock photos, illustrations and vectors in the shutterstock collection. The clavicle, the femur, the fibula, the pelvic girdle, the humerus, the mandible, the pubis, the patella, the radius, the rib cage, the sacrum, the skull, the sternum, the tibia, and the ulna.
The objective of this study was to verify the presence and to investigate the shape and constitution of the clavicle in neotropical carnivores. The two clavicles, on either side of the anterior base of the neck, are horizontal, scurved that articulate laterally articulate with the outer end. Clavicle bone article about clavicle bone by the free. The two clavicles, on either side of the anterior base of the neck, are horizontal, scurved that articulate laterally articulate with the outer end of the shoulder blade to support the. Dislocation or fracture of the clavicle and acromial process with displacement.
Clavicle, curved anterior bone of the shoulder pectoral girdle in vertebrates. The clavicle is a sigmoidshaped long bone with a convex surface along its medial end when observed from cephalad position. There are two clavicles, one on the left and one on the right. The clavicle is one of the most commonly broken bones in the human body. This chapter focuses on the anatomy and function of the clavicle and aims to elucidate some of the developmental, traumatic, and nontraumatic conditions that affect this unique bone. Play sporcle s virtual live trivia to have fun, connect with people, and get your trivia on. A total of five muscles are attached to the clavicle, found distributed at either the lateral third or medial two thirds of the bone. The clavicle, along with the sternum and the scapula, forms the pectoral girdle which gives attachment to multiple muscles controlling the movement of the. Clavicle bone definition of clavicle bone by the free. The clavicle bone can be separated into three major sections. Clavicle fracture broken collarbone orthoinfo aaos. Clavicular function anne elisabeth ljunggren anatomical institute, anthropological department, university of oslo, oslo, norway this is a survey of the functional variation of the clavicle, in particular with regard to its adaptability, the bone being an essential link in the shoulder girdle. Its one end forms a joint with the sternum while the other end forms a joint with the scapula or the shoulder blade.
The clavicle functions like a strut or lever arm to help support suspend the humerus and scapula and maintain their position relative to the rib cage try revising the anatomy of the clavicle with flashcards. May 28, 2018 bd chaurasia anatomy pdf book downloads with direct links and overview. It is good to read the details of the bones before and after the dissection classes to retain the memory. Studies with vestigial structures are scarce and controversial, especially in the order carnivora.
The shoulder has several other important structures. The clavicle is a long bone it is horizontally placed 3. Most fractures occur in the middle portion, or shaft, of the bone. Parts of the humerus parts of the scapula parts of the scapula 2 more in depth parts of the scapula and clavicle scapula and clavicle quiz cards humerus and bone landmarks quiz cards. The clavicle collarbone anatomy of the clavicle anatomy. The clavicle functions landmarks fractures teachmeanatomy. It is comprised of the clavicle collar bone, sternum, scapula shoulder blade and. Bones of the upper limb teachmeanatomy making anatomy simple. It is above the rib cage and in front of the scapula. Most clavicle fractures occur when a fall onto the shoulder or an outstretched arm puts enough pressure on the bone. It is the first bone to ossify and the last to fuse.
Treatment of clavicle fractures has changed dramatically in recent years with a growing trend towards surgical intervention. Unlike human arms, cat forelimbs are attached to the shoulder by free floating clavicle bones, which allows them to pass their body through any space into which they can fit their heads. The medial end of the clavicle articulates with the manubrium at the sternoclavicular joint 5. The scapula or shoulder blade is a flat, triangularshaped bone that lies adjacent to the posterior surface of ribs 27. There are many books for anatomy one can read, but bd chaurasia is still considered the best book of anatomy. Thus, it does not participate in hematopoiesis, and blood production will not decrease if the bone is damaged. The scapula plays an important role in stabilizing the other bones involved in the rhythm of shoulder motion. The scapula, better known as the shoulder blade, is a triangular bone that serves as a joining force between the clavicle and the humerus. It is classed as a long bone, and can be palpated along its length. The clavicles are cylindrical bones around 6 inches 15 cm long and curved in the transverse plane like a letter s. Posterior sternoclavicular ligament attached above to the superior and posterior part of. The clavicle is actually a long bone of the body although it is short in length. Dec 17, 2018 the clavicle is a sigmoidshaped long bone with a convex surface along its medial end when observed from cephalad position. The clavicle is the only long bone in the body that lies horizontally.
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. This journal embraces anatomy in all its aspects as applied to medical practice. It has three borders superior, lateral, medial, three angles superior, lateral, medial and two surfaces costal, dorsal. Clavicle fractures are fairly common and occur in people of all ages. Choose from 500 different sets of clavicle flashcards on quizlet. Over 432 shoulder scapula clavicle anatomy bones pictures to choose from, with no signup needed. The clavicle collarbone extends between the manubrium of the sternum and the acromion of the scapula. The bone can crack just slightly or break into many pieces comminuted fracture. The doctor examines the patient with a dislocation and fracture of the clavicle and acromial process, closeup. Two muscles are attached to the lateral third of the clavicle. The clavicle is a bone whose development is related to the versatility of the thoracic limbs in mammals. There are a variety of classification systems but most are based on the anatomic location of the fracture 4.
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