. The comparative anatomy of the domesticated animals. Veterinary anatomy. Fist. 92. ABTICVLATIOm OF THE POSTERIOR LIMBS. 167 they will not be detailed here; but some remarks will be made with regard to the displacement the fibro-cartilages undergo when the articulation is in motion. During ^eiBiore and extension, these bodies, fixed on the tibial facets, which they transform into glenoid cavities, move with them on the condyles of the femur, from before to behind,or behind to before, according to the movement executed. But at the same time they also gliile in an inverse direction, and to a ve
. The comparative anatomy of the domesticated animals. Veterinary anatomy. Fist. 92. ABTICVLATIOm OF THE POSTERIOR LIMBS. 167 they will not be detailed here; but some remarks will be made with regard to the displacement the fibro-cartilages undergo when the articulation is in motion. During ^eiBiore and extension, these bodies, fixed on the tibial facets, which they transform into glenoid cavities, move with them on the condyles of the femur, from before to behind,or behind to before, according to the movement executed. But at the same time they also gliile in an inverse direction, and to a very appreciable degree, on the superior extremity of the tibia. There- fore, during ilexion, they pass from behind forward on this extremity, and are drawn backwards during exten- sion. In rotation, which may take place from within to without, or from with- out to within, the movement is pro- duced not only by the pivoting of the condyles in their glenoid cavities, but also by a sensible displacement of the meniscii on the tibial surfaces. In the Bog and Cat, the meniscii are joined together near their anterior insertion by a transverse fibrous baud. There is only one patellar ligament, and the posterior liga- ment shows in its thickness two email sesa- moid bones against which the condyles of the femur play inwardly, and which give attachment, outwardly, to the origiuaiing branches of the external gastrocnemius mus- cle. There is no femoro-patellar capsule, and only one synovial membrane for the whole articulation. In the Pig and Sheep, there is also only one ligament and one synovial 4. Tihio-fihular Articulation. This articulation represents a small planiform diarthrosis, whose move- ments are very limited and obscure. It is formed by the union of the irre- gular diarthrodial facet which occupies the internal face of the head of the fibula, with the analogous facet on the external superior tuberosity of the tibia. Short and strong interosseous or peripheral fibres e
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