For full functionality of this site it is necessary to enable JavaScript. Here are the instructions how to enable JavaScript in your web browser.

Join us for our FaceBase Phase 2 Final Recap webinar! Click here to learn more and register.

FishFace

3 dpf Development

[ Back to The opercle: associated bones and articulations]
Info Image

Please hold mouse over images to see annotations.

3 dpf
sp7:EGFP
Alizarin red
Lateral
Description By 72 hpf, the opercle (op) consists of a linear spicule of bone matrix surrounded by tightly packed osteoblasts. The opercle articulates along its dorsal tip with the hyosymplectic cartilage (not visible here) through a ball and socket joint. At this time, opercle growth occurs ventrally through the addition of osteoblasts in a linear fashion that parallels the existing bone (data not shown). Faint EGFP-derived fluorescence throughout the image is derived from transgene expression in the ectoderm.