THE POSTERIOR COMPARTMENT OF THE LEG 1. Considering the superficial group of the posterior crural muscles all of them act on the knee joint and the ankle joint only the gastrocnemius and the plantaris muscle act on the knee joint and the ankle joint Excellent! No, B is correct. The third muscle, the soleus muscle, arises from the soleal line and from the fibula and thus can not act on the knee joint. 2. The superficial group of the posterior crural muscles form one thick tendon which attaches to the talus the calcaneus Of course, thus the tendon is called the tendo calcaneus. No, B is the answer. Thus the tendon is called the tendocalcaneus. 3. The deep group of the posterior tibial muscles include the popliteus muscle the tibialis posterior muscle the flexor hallucis longus muscle all of the above Certainly. No, D is correct. 4. The deep transverse fascia of the leg is attached to the medial border of the tibial and the posterior border of the fibula. Superiorly, it is continuous with the fascia covering the popliteus muscle and inferiorly, it is continuous with the flexor retinaculum the superior peroneal retinaculum all of the above Good answer. Partly, C is the answer I need. 5. The tendon of the popliteus muscle is intracapsular and intrasynovial intracapsular and extrasynovial Hooray! No, B is correct. 6. The popliteus muscle is regarded as the muscle which unlocks the knee joint locks the knee joint Marvelous! No, the correct answer is A. 7. The flexor hallucis longus muscle is attached to the plantar aspect of the medial phalanx of the great toe plantar aspect of the distal phalanx of the great toe none of the above Bravo! No, B is the answer. 8. The tibialis posterior muscle attaches to the tuberosity of the navicular bone and to the medial cuneiform bone to the medial cuneiform bone only Right! No, the answer is A. 9. The muscles of the deep group of the posterior crural muscles enter the foot behind the lateral malleolus the medial malleolus Very good. No, B is correct. 10. The tibialis posterior muscle, the flexor digitorum longus muscle and the flexor hallucis longus muscle evert the foot and cause its plantar flexion invert the foot and cause its plantar flexion Correct. No, B is correct. 11. The posterior tibial artery begins at the lower border of the popliteus muscle. Its upper part is covered by the gastrocnemius and the soleus muscle the deep transverse fascia of the leg all of the above are correct That is correct! Wrong, C is the answer. 12. Immediately below and deep to the soleus muscle, the posterior tibial artery lies on the tibialis posterior muscle the flexor digitorum longus muscle Correct. No, A is correct. 13. The posterior tibial artery enters the sole of the foot behind the medial malleolus the lateral malleolus Excellent! No, A is the correct answer. This artery enters the sole of the foot behind the medial malleolus, midway between the medial malleolus and the prominence of the calcaneous. At this point pulsation of this artery can be felt. 14. The posterior tibial artery terminates on the sole of the foot as the medial and the lateral plantar arteries. The place of this division is under the origin of the abductor hallucis muscle. Which of these two arteries anastomoses with the dorsal artery of the foot? the medial plantar artery the lateral plantar artery Right! This anastomosis completes the plantar arch. No, B is right. This anastomosis completes the plantar arch. 15. You can examine the arterial blood supply to the lower limb by feeling pulse of which of the following arteries? the femoral artery - just below the inguinal ligament the anterior tibial artery - on the dorsal artery of the foot the posterior tibial artery - behind the medial malleolus all of the above are correct Very good. No, D is correct. On the dorsal artery of the foot, you will be able to feel pulse just laterally to the tendon of the extensor hallucis longus. Pulse on the popliteal artery is difficult to detect, however, it is possible when the knee is flexed. 16. Examining a patient you can find a pulse on the femoral artery, popliteal artery and on the dorsalis pedis artery. You are not able to detect a pulse just behind the medial malleolus, your conclusion is that the anterior tibial artery is blocked somewhere between the popliteal fossa and the foot the posterior tibial artery is blocked somewhere between the popliteal fossa and the foot the peroneal artery is blocked somewhere between the popliteal fossa and the foot Correct. No, the answer is B. The posterior tibial artery passes behind the medial malleolus. 17. Referring to the same patient, what examination would allow you to find the exact place of occlusion of the posterior tibial artery? arteriography of the lower limb venography of the lower limb Fine! No, the answer is A. Venography is the examination of the veins. 18. In most of its course on the leg, the tibial nerve lies on the tibialis posterior muscle but in the lower part of the leg it comes into relation with the posterior surface of the tibia the fibula the interosseus membrane Certainly! No, A is correct. 19. The tibial nerve supplies the knee joint by articular branches all muscles of the posterior compartment of the leg by muscular brances both answers are correct You are right. Partly, but C is the answer I need. Articular branches accompany the superior and the inferior medial genicular artery. Another articular branch accompanies the middle genicular artery. 20. The sural nerve is a branch of the tibial nerve. It is joined by the sural communicating branch from the common peroneal nerve. It passes to the foot behind the lateral malleolus behind the lateral malleolus together with the short saphenous vein in front of the medial malleolus Very good! Sorry, the answer is B. 21. The tibial nerve ends under cover of the flexor retinaculum by dividing into the medial plantar nerve the lateral plantar nerve both answers are correct Hooray! Partly, but C is the correct answer. 22. The tibial nerve on the leg is covered by the fascia crura the deep transverse fascia of the leg Yes. No, B is the answer. This fascia separates the superficial from the deep group of muscles of the posterior compartment of the leg.