apophysis
apophysis
1. In vertebrates, a projection from a bone, usually for muscle attachment. VERTEBRAE have pairs of apophyses.
2. In echinoids, an internal projection from one of the interambulacral plates (see INTERAMBULACRUM) around the peristome; apophyses serve for the attachment of the muscles supporting the Aristotle's lantern.
1. In vertebrates, a projection from a bone, usually for muscle attachment. VERTEBRAE have pairs of apophyses.
2. In echinoids, an internal projection from one of the interambulacral plates (see INTERAMBULACRUM) around the peristome; apophyses serve for the attachment of the muscles supporting the Aristotle's lantern.
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apophysis
