Subcostal muscles
Musculi subcostales
- Synonym: Subcostales
- Related terms: Subcostales
Definition
Origin: Inner surface of one rib
Insertion: Inner surface of the second or third rib above, near its angle
Nerve: Intercostal nerves
Description:
The subcostal muscles (Subcostales; Infracostales) consist of muscular and aponeurotic fasciculi, which are usually well-developed only in the lower part of the thorax; each arises from the inner surface of one rib near its angle, and is inserted into the inner surface of the second or third rib below. Their fibers run in the same direction as those of the Intercostales interni.
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/).
