Manubrium
Manubrium
Manubrium (pronunciation: ma-NOO-bree-um) is a term used in anatomy to refer to a specific part of the sternum. The word originates from the Latin term 'manubrium', which means 'handle'.
Anatomy
The Manubrium is the uppermost segment of the Sternum, a long, flat bone located in the center of the chest. It connects to the Clavicles (collar bones) and the first two Ribs, forming the anterior aspect of the Thoracic cage. The manubrium is roughly trapezoidal in shape, and its top edge, the Jugular notch, is easily palpable.
Clinical Significance
The manubrium's position and characteristics make it a significant landmark in clinical examinations and surgical procedures. For instance, the Jugular notch of the manubrium is a reference point for assessing the Trachea's position. In addition, the manubrium's junction with the body of the sternum, known as the Sternal angle, is a crucial landmark for identifying the location of various thoracic structures.
Related Terms
- Sternum: The breastbone, a long, flat bone located in the center of the chest.
- Clavicles: Also known as collar bones, they are a pair of long bones that connect the upper part of the body to the arms.
- Ribs: A set of twelve pairs of bones which form the protective 'cage' of the thorax.
- Thoracic cage: The skeletal framework that provides protection to the organs of the thorax.
- Jugular notch: The large, visible dip in between the neck and the collarbone.
- Trachea: The windpipe, a tube that connects the pharynx and larynx to the lungs, allowing the passage of air.
- Sternal angle: The angle between the manubrium and the body of the sternum, used as a reference point in medicine.
External links
- Medical encyclopedia article on Manubrium
- Wikipedia's article - Manubrium
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