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

FishFace | FaceBase

Due to the holidays, our next FaceBase Office Hours will be January 25th at 1pm EDT/10am PDT Register via Zoom.
We wish you all a safe and happy holiday season/winter break!


3 dpf Development

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

Please hold mouse over images to see annotations.

3 dpf
Alizarin red

By 72 hpf, the palatoquadrate (pq) has increased in size and cell number from that seen at 51 hpf. The palatoquadrate now can be discerned more easily from Meckel’s cartilage (Mk) in its anterior articulation and articulates considerably with the hyosymplectic (hs) posteriorly. Alcian blue staining of matrix is observed in these developing cartilages at this stage (data not shown). The pterygoid process (ptp) of the palatoquadrate can be seen growing dorsomedially from the main body to approximate the ethmoid (e) of the neurocranium. A more ventral view demonstrates that, similar to the pterygoid process, the main body of the palatoquadrate is approximately one cell layer thick.