The leg and foot

Regarding to the compartments in the leg, the anterior and the deep posterior compartments are separated by

• anterior septum

• interosseous membrane

• transverse septum

• deep (crural) fascia

• posterior septum

Name all the muscles in the lateral compartment of leg.

Which two of the followings about muscles in the lateral compartment of leg are correct?

• They are supplied by perforating branches of the posterior tibial artery.

• Their main action is to invert the foot and assist plantar flexion.

• Their tendons pass under the fibular retinacula.

• They are innervated by the deep branch of common fibular nerve.

• Fibularis longus attaches to the 1st metatarsal.

Which two of the followings about the muscles in the anterior compartment of leg are correct?

• They are innervated by the deep fibular nerve.

• They received blood supply from the popliteal artery.

• They are also called the flexor compartment.

• Their main actions are dorsiflexion, inversion and digit extension.

• Dorsiflexion is especially controlled by tibialis anterior muscle.

Name the muscle that can extend the lateral four toes at metatarsophalangeal joint.

Dorsalis pedis artery is the extension of

• anterior tibial artery

• posterior tibial artery

• perforating branch of fibular artery

• fibular artery

• lateral plantar artery

Can a person with injured common fibular nerve invert and evert their foot? Give an account for your answer.

Name the muscle in the posterior compartment of leg that can flex the knee joint as well.

Name the muscle in the deep posterior compartment of leg that can invert the foot.

Which two of the followings about the deep muscles in posterior deep compartment are incorrect?

• Their action is basically the opposite of the anterior compartment.

• They are innervated by the deep fibular nerve.

• They receive blood supply from the posterior tibial artery.

• Popliteus muscle is the key to unlock the knee and initiate knee flexion.

• They provide support for the transverse arch of foot.