Fig. 6. Lateral view of the left lung of the ostrich Struthio camelus showing mediodorsal secondary bronchi (filled circles) arising from the primary bronchus. s, costal sulci; open circles, parabronchi. Each gradation on the scale bar, 1 cm.
Fig. 6. Lateral view of the left lung of the ostrich Struthio camelus showing mediodorsal secondary bronchi (filled circles) arising from the primary bronchus. s, costal sulci; open circles, parabronchi. Each gradation on the scale bar, 1 cm.