1 Femoral ring. Anulus femoralis. Entrance into the femoral canal bordered by the femoral vein, inguinal ligament, falx inguinalis and pectineal ligament. A

2 Femoral septum. Septum femorale. Fibrous membrane that closes the entrance of the femoral canal. A

3 Saphenous opening. Hiatus saphenus. Large opening in the fascia lata directly below the inguinal ligament for passage of the great saphenous vein. B

4 Falciform margin. Margo falciformis. Curved, principal lateral margin ofthe saphenous opening. B

5 Superior horn. Cornu superius. Upper, curved portion of the falciform margin. B

6 Inferior horn. Cornu inferius. Lower, curved portion of the falciform magin. B

7 Cribriform fascia. Fascia cribrosa. Loose, perforated connective tissue lamina covering the saphenous opening. B

8 Fascia of the leg (crural fascia). Fascia cruris. Superficial investing fascia of the leg which serves partially for muscle attachment and is fused to the free bony margins of the tibia. CDF

9 Anterior intermuscular septum of leg. Septum intermusculare cruris anterius. Connective tissue septum between the peroneal and extensor compartments. F

10 Posterior intermuscular septum of leg. Septum intermusculare cruris posterius. Connective tissue septum between the peroneal and flexor compartments. F

11 Superior extensor retinaculum. Retinaculum mm. extensorum superius. Transverse thickened (about two finger's breadth) of the crural fascia that hold the extensor tendons in place. C D

12 Flexor retinaculum. Retinaculum mm. flex-orum. Fibrous band on the long flexor tendons that extends from the medial malleolus to the calcaneus. It forms an osteofibrous compartment for the posterior tibial m., then divides into two parts. The lower portion forms compartments for the flexor digitorum longus and flexor hallucis longus muscles. The tibial nerve and posterior tibial artery and vein lie between the two membranous parts. D

13 Inferior extensor retinaculum. Retinaculum mm. extensorum inferius. Usually cruciate band that supports the extensor tendons, extending from both malleoli to the foot margins of the opposite side, primarily to the calcaneus. C D

14 Superior peroneal (fibular) retinaculum. Reti-naculum mm. peroneorum (fibularium) su-perius. Upper band that holds peroneal tendons in place; it extends from the lateral malleolus to the calcaneus. C

15 Inferior (fibular) peroneal retinaculum. Reti-naculum mm. peroneorum (fibularium) in-ferius. Lower band that holds the peroneal tendons in place. It passes from the extensor reti-naculum to the outer surface of the calcaneus. A fibrous tract goes to the peroneal trochlea and separates the upper lying peroneus brevis from the peroneus longus muscle. C

16 Fascia dorsalis pedis. Thin fascia on the dor-sum of the foot connected above with the inferior extensor retinaculum. C D

17 Plantar aponeurosis. Aponeurosis plantaris. Tough, tendinous sheet on the sole of the foot extending from the tuber calcanei to as far as the middle phalanges. It braces the longitudinal arch of the foot. E

18 Transverse fasciculi. Fasciculi transversi. Transverse fibrous sheets in the distal plantar aponeurosis. E

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Essentials of Human Physiology

Essentials of Human Physiology

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