Fig. 7From: Experimental determination of three-dimensional cervical joint mobility in the avian neckZygapophyseal overlap for six joints. Zygapophyseal overlap, measured in percentage, is plotted for right and left zygapophyses combined. Right: Schematics showing the method of measuring zygapophyseal overlap. D z :the distance measured between the two zygapophyses. For more detail, see Methods Back to article page