FIGURE 3.

Nasal capsule in frontal sections of a foetus of 80‐mm CRL with a long inferolateral part inserted between the maxilla and palatine bone. H&E staining. Frontal sections. Panel (a) (or panel h) shows the most anterior (or posterior) plane in the figure. The nasal capsule is composed of a median thick septal cartilage (NS) and inferolaterally extending plate (arrows in panel a). Both parts were connected by the lateral nasal cartilage at the anterior site (stars in panel a). The bony maxilla (MX) appeared to develop along the outer aspect of the nasal capsule at the anterior sites (panels b and c). Owing to the wavy course, the greater alar cartilage appeared to be fragmented and separated from the nasal septum (arrows in panels c and d). The cribriform plate is underdeveloped, and the foramina are very large (stars in panels e and f). The inferolateral end of the nasal capsule (arrow in panel g) is sandwiched between the palatine bone (PAL) and the maxilla (MX). The cartilage process extends anteriorly from the inferior end (arrowhead in panels e and f). All panels were prepared at the same magnification (scale bar in a: 1 mm). Other abbreviations are common abbreviations.