Intermediate zone
Linea intermedia
- Related terms: Intermediate line
Definition
The intermediate zone (intermediate line) of iliac crest refers to the portion of the ventral (anterior 2/3rd) segment of the iliac crest that is sandwiched between the outer and inner lips. It functions as the attachment site for the internal oblique muscle.
References
Standring, S. and Gray, H. (2016). ‘Chapter 80: Pelvic girdle, gluteal region and thigh’ in Gray’s anatomy The anatomical Basis of Clinical Practice. (41st ed.) New York: Elsevier, pp. 1341-1343.