This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lower limb, Subject name: Anatomy
[{'content': 'Dorsiflexion of ankle joint is by \nSelect and explain. \nA. Tibialis anterior, B. Peroneus longus, C. Tibialis posterior, D. Soleus', 'role': 'user'}, {'content': "Answer: A \nExplanation: Muscles producing movements of ankle - A. Dorsiflexion : Tibialis anterior is the principal muscle,(Extensor digitorum anterior longus, Extensor hallucis longus,Peroneus teius are the accessory muscles) B. Plantar flexion : Gastrocnemius and Soleus are the principal muscles ( plantaris, Tibialis posterior, Flexor hallucis longus, Flexor digitorum longus are the accessory muscles) Ref : B D Chaurasia's Human Anatomy , seventh edition , volume 2 , pg. no. 161 ( table 12.3 )", 'role': 'assistant'}]