anulus fibrosus of intervertebral disc

an·u·lus fi·bro·sus of in·ter·ver·te·bral disc

[TA]
the ring of fibrocartilage and fibrous tissue forming the circumference of the intervertebral disc; surrounds the nucleus pulposus, which is prone to herniation when the annulus fibrosus is compromised.

an·u·lus fi·bro·sus of in·ter·ver·te·bral disc

(an'yū-lŭs fī-brō-sŭs in-tĕr-vĕr'tĕ-brăl disk) [TA]
The ring of fibrocartilage and fibrous tissue forming the circumference of the intervertebral disc; surrounds the nucleus pulposus, which can herniate when the anulus is diseased or injured.
Synonym(s): anulus fibrosus disci intervertebralis [TA] , anulus fibrosus (2) [TA] .