Xiphoid
Xiphoid Process
The Xiphoid Process (pronounced: /ˈzaɪfɔɪd/), also known as the xiphisternum or metasternum, is a small cartilaginous extension of the lower part of the sternum which is usually ossified in the adult human.
Etymology
The term "xiphoid" is derived from the Greek word "xiphos" meaning "sword" and "eidos" meaning "shape". It refers to the sword-like shape of the structure.
Anatomy
The xiphoid process is the smallest and most inferior part of the sternum, or breastbone. At birth, it is a thin, roughly triangular region of cartilage that slowly ossifies into a bony structure and fuses with the body of the sternum. The xiphoid process plays a small, but important role in the body's anatomy. It serves as an attachment point for several major muscles, including the diaphragm, which is essential for breathing, and the rectus abdominis, a key postural muscle.
Clinical Significance
The xiphoid process has a clinical significance in the medical field. It is an important landmark in the human body used to perform the Heimlich maneuver on choking victims. It also serves as a landmark for various other medical procedures and physical examinations.
Related Terms
External links
- Medical encyclopedia article on Xiphoid
- Wikipedia's article - Xiphoid
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