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What is the prime mover if ankle plantarflexion?
gastrocnemius
Is it true that dorsiflexion and plantarflexion refer to movements of the ankle that change the position of the foot?
Yes.
What two joints does the gastrocenimicis act on?
The knee joint (flexion, movement of the leg) and the ankle joint (plantarflexion, movement of the foot)
Does plantar flexion mean turning the hand downward?
No. Plantarflexion refers to moving the ankle downwards. It is the opposite of dorsiflexion. Flexor Carpi Radialis is moving the wrist downwards.
How can the term flexion apply to opposite movement of the foot?
The bending of the foot at the ankle has been argued which movenment is flexion and which extendtion. So to avoid arguemnet both lifting and lowerng the foot at the ankle was termed flexion. Dorsiflexion and plantarflexion respectively.
What is plantarflexion of the foot?
Plantarflexion is a movement of the foot at the ankle joint downwards - ie. the whole foot is pointed downwards. Imagine standing up then raising yourself onto tip-toes and flexing the foot as far as it will go to stand as tall as you can. In this position your foot is plantarflexed. This is the opposite of dorsiflexion where the foot is pulled 'upwards'.
What are the common names of the muscles that move the ankle?
Extension ofthe ankle, or more accurately plantarflexion is achieved by a comination of muscles in the posterior compartment of the leg. The Gastrocnemius, Soleus, Plantaris, Flexor Hallucis Longus, Flexor Digitorum Longus and Tibialis Posterior all help to plantarflex.
What is the meaning of dorsaflexion?
Dorsiflexion is the movement of bringing the top of the foot towards the shin. This movement typically occurs at the ankle joint and is the opposite of plantarflexion. Dorsiflexion can also refer to a movement or position where the back is arched backward.
What is the function of the calf muscle?
It causes flexion of the knee and plantarflexion of the foot.
What is the muscle group that produces plantarflexion at the end of the stance phase?
Triceps Surae
What muscles act in plantar flexion?
popliteus is not involved in plantarflexion...its involved in leg flexion
What is the major difference between gastrocnemius and the soleus?
The gastrocnemius is biarticulate (crosses both knee and ankle joint) and originates at femur (post femoral condyles), performing both concentric plantar flexion and knee flexion. The soleus originates at the posterior fibular head and the tibia (soleal line), performing only concentric plantarflexion.
