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Contents loading... Editors loading... Categories loading... When refering to evidence in academic writing, you should always try to reference the primary (original) source. That is usually the journal article where the information was first stated. In most cases Physiopedia articles are a secondary source and so should not be used as references. Physiopedia articles are best used to find the original sources of information (see the references list at the bottom of the article). If you believe that this Physiopedia article is the primary source for the information you are refering to, you can use the button below to access a related citation statement. Introduction[edit | edit source]The sternum completes the anterior chest wall as the ventral breastplate. The sternum is a flat cancellous bone with a compact cortex, it is slightly convex anteriorly, with multiple indentations along its lateral borders (costal notches). [1][2][3] Structure[edit | edit source]The sternum develops as three distinct parts:
They articulate via secondary cartilaginous joints via hyaline cartilage with a fibrocartilaginous intervening disc. [1] Function[edit | edit source]Changes in the position of the skeletal components of the chest wall cause the changes in the dimensions of the chest. Two very different types of motion of the ribs and sternum create these changes in diameter.
[5] Articulations[edit | edit source]
Sternum muscle attachment Musculotendinous Attachments[edit | edit source]Muscle attachments: sternocleidomastoid, intercostal, pectoralis major, sternohyoid, and sternothyroid muscles Transversus thoracis muscle arises from the posterior surface of the body The xiphisternum attaches to linea alba[1] Blood and Nerve Supply[edit | edit source]
Clinical relevance[edit | edit source]
References[edit | edit source]
What is the junction between the manubrium of the sternum and the clavicle called?The sternoclavicular joint or sternoclavicular articulation is the joint between the manubrium of the sternum and the clavicle bone. It is structurally classed as a synovial plane joint and functionally classed as a diarthrosis and multiaxial joint.
What is the joint of the sternum?Sternochondral, also known as chondrosternal or sternocostal joints, are synovial plane joints that attach the sternum (sterno-) with the costal cartilages (-chondral) of the thorax. The first sternochondral joint is an exception, being considered a primary cartilaginous joint.
Where the manubrium meets the body of the sternum?Where the manubrium meets the body of the sternum, is a joint called the manubriosternal joint. This joint forms a distinct angle known as the sternal angle, or the Angle of Louis, and is an important anatomical landmark.
Where does manubrium and body join?The manubrium joins with the body of the sternum, the clavicles and the cartilages of the first pair of ribs. The inferior border, oval and rough, is covered with a thin layer of cartilage for articulation with the body.
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