Which muscles are considered lateral extrinsic muscles that plantar flex the foot?

The peroneal longus and peroneal brevis muscles are classified as lateral extrinsic muscles of the leg that play a significant role in the plantar flexion of the foot. These muscles are located on the lateral side of the leg and are involved in both the eversion of the foot and assisting with the plantar flexion, which is the action of pointing the toes away from the body.

The function of the peroneal longus is essential not only for plantar flexion but also for stabilizing the foot and ankle during movement. The peroneal brevis, while primarily acting to help with eversion, also contributes to plantar flexion, particularly during activities such as walking or running. Their lateral positioning highlights their role in lateral stability and function during dynamic activities.

In contrast, the other muscles listed in the other choices do not align with the specifics of the question regarding lateral extrinsic muscles responsible for plantar flexion. For instance, the posterior and anterior tibial muscles are located more medially and have different primary functions. The gastrocnemius and soleus are primarily posterior muscles involved in plantar flexion but do not fall under the category of lateral extrinsic muscles. The gluteus medius and gluteus maximus