post leg code Flashcards
What are the primary actions of the muscles in the posterior compartment of the leg?
The muscles of the posterior compartment primarily plantarflex and invert the foot.
Which nerve innervates the muscles in the posterior compartment of the leg?
The tibial nerve innervates the muscles of the posterior compartment.
What is the primary blood supply for the posterior compartment of the leg?
The posterior tibial artery provides the blood supply.
Which muscles are in the superficial compartment of the posterior leg?
The superficial compartment contains the gastrocnemius, soleus, and plantaris.
What is the action of the gastrocnemius muscle?
The gastrocnemius plantarflexes the foot at the ankle joint and flexes the knee joint.
Where does the gastrocnemius insert?
It inserts onto the calcaneus via the calcaneal tendon.
How is the gastrocnemius innervated?
The gastrocnemius is innervated by the tibial nerve.
What is the action of the soleus muscle?
The soleus plantarflexes the foot at the ankle joint.
Where does the soleus muscle originate?
The soleus originates from the soleal line of the tibia and the proximal fibula.
Where does the plantaris muscle insert?
The plantaris inserts onto the calcaneus via the calcaneal tendon.
What is the function of the plantaris muscle?
The plantaris contributes to plantarflexion and flexion at the knee joint.
How is the plantaris muscle innervated?
The plantaris is innervated by the tibial nerve.
What is a ruptured calcaneal tendon?
A ruptured calcaneal tendon is a partial or complete tear of the tendon, often caused by forceful plantarflexion.
What is the role of the popliteus muscle?
The popliteus muscle laterally rotates the femur relative to the tibia to unlock the knee joint.
Where does the popliteus muscle insert?
The popliteus inserts onto the proximal tibia, above the origin of the soleus.
