Extensor Digitorum LongusHow-To: The extensor digitorum longus is found on the side of the tibialis anterior. If you see a separation under the connective tissue, carefully use the blunt probes or use the scissors to cut away the connective tissue, and then probe under the muscle to separate it from the tibia.
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Peroneus LongusHow-To: Peroneus Longus is another strand-like muscle. it is located to the side of the extensor digitorum longus. Finding this muscle is not hard. just remove the thin covering of connective tissue on the division of the muscles, and lift up the muscle with the probe.
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Peroneus TertuisHow-To: The Peroneus Tertuis is the back of the anterior aspect of the shank. there is a clear seperation from the front part and the soleus+gastronemius section. In the anterior part, Tertuis covers the whole back. To find it, with the blunt probe, stick it through the division to the right of the Peroneus Longus, and it should come out to the other side. Then move the probe up and down to clearly seperate it.
In the picture, the probe is stuck through the whole Tertuis. the muscle to the left of it is the Peronius Longus.
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