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perichondrium vs. periosteum

perichondrium

[per-i-kon-dree-uhm] / ˌpɛr ɪˈkɒn dri əm /

noun

Anatomy.

perichondria

the membrane of fibrous connective tissue covering the surface of cartilages except at the joints.

periosteum

[per-ee-os-tee-uhm] / ˌpɛr iˈɒs ti əm /

Anatomy.

periostea

the normal investment of bone, consisting of a dense, fibrous outer layer, to which muscles attach, and a more delicate, inner layer capable of forming bone.