. The anatomy of the domestic animals. Veterinary anatomy. THE STIFLE JOINT 237 practically of the synovial layer only. It is much stronger posteriorly: here it is reinforced by what might be regarded as a posterior ligament. This is a strong, flat band which arises from the femur just lateral to the origin of the medial head of the gastrocnemius, and extends down to the posterior border of the medial condyle of the tibia; it is wider below than above. There are two synovial sacs, corresponding to the double nature of the articular surfaces; they do not usually communicate, and each is partial
. The anatomy of the domestic animals. Veterinary anatomy. THE STIFLE JOINT 237 practically of the synovial layer only. It is much stronger posteriorly: here it is reinforced by what might be regarded as a posterior ligament. This is a strong, flat band which arises from the femur just lateral to the origin of the medial head of the gastrocnemius, and extends down to the posterior border of the medial condyle of the tibia; it is wider below than above. There are two synovial sacs, corresponding to the double nature of the articular surfaces; they do not usually communicate, and each is partially divided into an upper and a lower compartment by the meniscus. The medial sac pouches upward about half an inch over the con- Laleral condyle of femur Lntcral femoro- .° tibial ligament Stump of p<ij)- liteus tendon Lateral meniscus Lateral condyle of ^ '|^ tibia 'i m Head of fil Interosseous space. Medial femoro- tibial ligament Medial condyle of femur Medial meniscus Medial condyle of tibia Fig. 249.—Left Stifle Joint of Horse 1, Femoral ligament of lateral meniscus; 2, posterior ligament of lateral i posterior cruciate ligament. Capsule is Removed. 3, anterior cruciate ligament; 4, dyle of the femur. The lateral sac invests the tendon of origin of the popliteus muscle, and also pouches downward about three inches (ca. cm.) beneath the peroneus tertius and extensor longus muscles. As stated above, the lateral sac sometimes communicates with the femoro-patellar joint cavity, and the medial sac usually does so in the adult. Ligaments.—There are four of these—two collateral and two cruciate. The medial ligament (Lig. collateral tibiale) is attached above to the prom- inent medial epicondyle of the femur, and below to a rough area below the margin of the medial condyle of the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not
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