Leg Bones and Muscles Flashcards
What is the arrangement of structures that pass under the medial malleolus?
Tom Dick And Very Naughty Harry
Tibialis posterior
Flexor Digitorum Longus
Artery
Vein
Nerve
Flexor Hallicus Longus
What is another name for the achilles tendon?
Tendo-calcaneus
What movement does contraction of tibialis anterior cause?
Dorsiflexion
Inversion
Where does tibialis anterior insert?
The base of the 1st metatarsal and medial cuneiform
Why does the tendon of FHL have to pass under the tendon of FDL?
Because its muscle body is lateral on the leg but it inserts onto the medially located great toe
What is the origin of the gastrocnemius?
One on each condyle of the femur - to allow for both of the gastrocnemius bellies
Describe the origin of the soleus muscle?
Runs obliquely down the fibula and tibia with an arch for vessels to pass through
What are the muscles of the anterior compartment of the leg?
Tibialis anterior
Extensor digitorum longus
Extensor hallucis longus
What is the insertion of tibialis posterior?
Base of 1st metatarsal
Medial cuneiform
Which surface of the tibia is its most common site of compound fractures?
The medial surface
What is the pattern of insertion of the tendons of EDL?
They insert into the lateral 4th toes
Each tendon splits into 3
What important physiological role does the soleus have?
Pump blood back up the legs
What are the muscles of the lateral compartment of the leg?
Fibularis longus
Fibularis brevis
Which muscle’s tendon grooves the lateral malleolus?
Fibularis brevis
What are the superficial muscles of posterior compartment of the legs called?
Gastrocnemius
Soleus
Popliteus
Plantaris
What is the major role of the popliteus?
Forms the floor of the popliteal fossa
What movement do the muscles of the lateral compartment facilitate?
Eversion
What are the muscles of the deep, posterior compartment of the leg?
Flexor digitorum longus
Tibialis posterior
Flexor hallicus longus
From which muscles does the fibularis tertius branch off?
Extensor digitorum longus
Compare the insertion points of fibularis longus and brevis?
Longus inserts into the base of 1st metatarsal, near tibialis anterior
While brevis inserts into the 5th metatarsal
Contraction of tibialis posterior cause what movement?
Inversion and plantarflexion
