What is Manubrium?
Manubrium is part of the chest or breast bone in the human chest. It is located in the upper part of the bone between two collar wars or collarbones, it is the widest part of the chest. This bone with its symmetrical, versatile shape, wider at the top than at the bottom resembles a head set on the body of Sternum. Many aspects of the manubria are associated with multiple structures, including two aspects for two collarbone bones, one aspect for the bone body and two aspects per piece for the upper and second series of constant cartilage that connect the manubrium on both sides with the first two ribs. its highest aspect that does not connect to any other bones. The excellent aspect can be felt by placing the index finger where both collars meet at the base of the front of the neck. A semicircular cavity known as SupraSternal or Jugular, Notch can be felt in the space between them. The front to the back is the superior aspect of the strongest edge of the Manubria. It is also a place where the main muscle of the front neck, sternocleidomastoid, connects beforeBy crossing up and out and attaching its other end to the skull just below the ear.
on each side of the supraSternal notch are similarly concave aspects, diagonally up and side. These aspects, identified as clavicular notches, are a place where both bones of collarbones form joints with a manubrium. Known as sternoclavicular joints are a type of synovial or movable joint called arthrodial or sliding joint, which means that joint bony surfaces can slide around each other around each other. Specifically, the collar fostrins can slide up and down and backwards and also rotate slightly due to the rib cage, allowing the arms to move, especially when lifting above the head of the arm.
under the clavicular notches on both sides of the manubria are curved aspects for articulation with the first ribs, above and below with the second rib. These joints, sternocostal joints, are inE facts where the sternum connects to the cartilage costume, the thick lid of fibrous tissue at the middle or stern end of each ribbone. The first sternocostal joint is known as the symbodial joint, which means that the cartilage is essentially fused with the skin and does not provide any real movement.
under this is the second sternocostal joint of another arthrodial joint, which allows the costume cartilage to barely slip against the ribbon and which is held together by the ligaments. To allow such movement, there is a synovial membrane that contains a lubricant capsule filled with liquid, between articulating surfaces. The second membrane connects to the second costume cartilage into the chest body.
Finally, the lower aspect of the manubria connects to the chest body. This aspect covered with cartilage forms articulation with a body known as amparthrodial joint, which means that the amount of motion allowed is more than the amount of symbodial joint and less than the amount of arthrodial jointu. This joint is characterized by the presence of cartilage -type discs known as fibrocartilage, which the folming ends of both bones against each other and provides some flexibility of the joint, but this does not allow great movement between them.