Midrash for Chullin 268:36

<big><strong>גמ׳</strong></big> ת"ר

R'JUDAH SAYS, THE THIGH EXTENDS FROM THE JOINT UP TO THE FLESHY PART OF THE LEG.<span class="x" onmousemove="('comment',' I.e., it consists of one bone only, viz. the tibia.');">²⁵</span>

Sifrei Devarim