Identify the tendons and arteries on the dorsum of the foot. (G 6.60B;N 517;Gl 34.40)
- Trace the tendons of the extensor hallucis longus and extensor digitorum longus muscles in the dorsum of the foot.
- Identify the extensor hallucis brevis muscle. Trace its tendon to the base of the proximal phallanx of the 1st toe.
- Identify the extensor digitorum brevis muscle (deep to the tendons of the extensor digitorum longus muscle).
- Trace the anterior tibial artery distally into the foot (G 6.61B;N 518;Gl 34.40) where it becomes the dorsalis pedis artery. Identify the lateral malleolar artery. Attempt to demonstrate the anastomosis between the perforating branch of the fibular artery and the lateral malleolar artery.
- Identify the deep plantar artery at the distal termination of the dorsalis pedis artery.
- Attempt to identify the medial malleolar, medial tarsal, lateral tarsal and arcuate arteries.
- Attempt to locate the distal termination of the deep fibular (peroneal) nerve near the bases of the 1st and 2nd toes.
Important Relationships
- At the ankle, the tendon of the extensor hallucis longus muscle is positioned medial to the tendon of the extensor digitorum longus muscle.
- At the ankle, the tendon of the extensor hallucis longus muscle is positioned lateral to the tendon of the tibialis anterior muscle.
- At the ankle, the dorsalis pedis artery is positioned directly lateral to the tendon of the extensor hallucis longus muscle.
