Muscles of the leg: want to learn more about it?
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Muscles of the leg
This study unit will help you to:
1. Identify and name the muscles of the leg.
2. learn how they are arranged into compartments.
3. Understand the functions, attachments and innervation patterns for these muscles.
The muscles of the leg surround the tibia and the fibula from the anterior, lateral and posterior aspects. These muscles span either from the distal thigh or proximal leg, cross the ankle joint and attach in the foot. Therefore, their primary function is to produce the movements on the ankle joint. According to their location, which also defines their function, the leg muscles are divided into three compartments:
- The anterior (dorsiflexor) compartment, which consists of the tibialis anterior, extensor digitorum longus, fibularis tertius and extensor hallucis longus muscles. Crossing the ankle from the anterior aspect, these muscles primarily cause dorsiflexion of the foot.
- The lateral (fibular) compartment, which houses the fibularis longus and fibularis brevis muscles. The major function of this compartment is to evert the foot.
- The posterior (plantar flexor) compartment, which is divided into the superficial and deep parts. The former contains the triceps surae (gastrocnemius + soleus), and plantaris muscles, while the latter consists of the popliteus, tibialis posterior, flexor digitorum longus and flexor hallucis longus muscles. The main function of this compartment is to plantar flex the foot.
The video below will provide you with an overview of the muscles of the leg.
For a more detailed look at the groups of muscles of the leg, watch the videos below.
Take a quiz
Now that you learned all you need to know about the muscles of the leg, check your knowledge by taking our quiz.
To finetune which aspects of the lower limb you want to focus on, try out our customizable quiz:
Revise everything that you have learned about these muscles by browsing through our atlas gallery:
|Anterior compartment||Tibialis anterior, extensor digitorum longus, fibularis tertius, extensor hallucis longus|
|Lateral compartment||Fibularis longus, fibularis brevis|
|Posterior compartment||Superficial part: Triceps surae (gastrocnemius + soleus), plantaris
Deep part: Popliteus, tibialis posterior, flexor digitorum longus, flexor hallucis longus
To better understand the functions of these muscles, you might be interested in our 3D muscle anatomy videos:
Continue your learning
Now that you are familiar with the muscles of the leg, you can continue learning by expanding your knowledge about the other muscles of the lower limb: