Quick Facts
The circumferential lamella is one of the layers of bone that underlie the periosteum (external circumferential lamella) and endosteum (internal circumferential lamella) (Dorland, 2011).
Structure/Morphology
The internal circumferential lamellae surround the inner circumference of the cortical component of long bones. It follows the contours of trabecular bone.
Anatomical Relations
The internal circumferential lamellae are the interface between the cortical bone and the inner spongy bone and medullary cavity.
Function
The inner circumferential lamellae contribute to the diameter of the diaphysis in long bones. This helps maintain the strength of the bone as well as help it adapt to mechanical loading and stresses (Standring, 2016).
References
Dorland, W. (2011) Dorland's Illustrated Medical Dictionary. 32nd edn. Philadelphia, USA: Elsevier Saunders.
Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series: Elsevier Limited.
