Bodybuilding - Anatomy of the Calf Muscle
The gastrocnemius is also called the calf
muscle. The muscle itself is one that is visible on the body (meaning it doesn't
lie underneath any other muscles and therefore is not visible by the eye). The
gastrocnemius attaches to the heel (at the Achilles Tendon) and originates on
the femur (behind the knee). The calf muscle has two heads (the medial and
lateral heads).
Soleus:
Unlike the gastrocnemius, this is one of those muscles that I mentioned above that are not visible because it lies underneath another muscle. It is for this reason that the muscle isn't very well known among those just starting out. The medial head originates on the posterior tibia and the lateral head on the posterior fibula. These two heads unite and insert into the calcaneal tendon.
Plantaris:
The plantaris is a very small muscle. The long tendon of the plantaris passes between the gastrocnemius and soleus and inserts into the calcaneus. It originates at the lateral epicondyle of the femur, just above the origin of the lateral head of the gastrocnemius.
Soleus:
Unlike the gastrocnemius, this is one of those muscles that I mentioned above that are not visible because it lies underneath another muscle. It is for this reason that the muscle isn't very well known among those just starting out. The medial head originates on the posterior tibia and the lateral head on the posterior fibula. These two heads unite and insert into the calcaneal tendon.
Plantaris:
The plantaris is a very small muscle. The long tendon of the plantaris passes between the gastrocnemius and soleus and inserts into the calcaneus. It originates at the lateral epicondyle of the femur, just above the origin of the lateral head of the gastrocnemius.
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