This joint (Articulatio genu), which corresponds to the knee-joint of
man, is the largest and most elaborate of all the articulations. Taken
as a whole, it may be classed as a ginglymus, although it is not a
typical example of the group. In reality it consists of two joints—the
=femoro-patellar= and the =femoro-tibial=.
The =femoro-patellar articulation= (Articulatio femoro-patellaris) is
formed between the trochlea of the femur and the articular surface of
the patella.
[Illustration: