General Anatomy · Musculoskeletal System · Medium

Annulus

Meaning: Tough outer ring of fibrocartilage lamellae surrounding the nucleus of an intervertebral disc.

In practice: Only its outer third is innervated, so tears there can produce discogenic back pain.

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Which word means: The windpipe — carries air from the throat to the lungs.

Which word means: An otolith organ of the inner ear detecting linear acceleration and head tilt.

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