Semilunar line
Linea semilunaris
- Latin eponym: Linea Spigeli
- Eponym: Van den Spieghel's line; Spighel's line
- Related terms: Linea semilunaris
Definition
The semilunar lines (lineae semilunares) are two curved tendinous lines placed one on either side of the linea alba.
Each corresponds with the lateral border of the Rectus, extends from the cartilage of the ninth rib to the pubic tubercle, and is formed by the aponeurosis of the Obliquus internus at its line of division to enclose the Rectus, reinforced in front by that of the Obliquus externus, and behind by that of the Transversus.
References
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
