Gross Anatomy L19
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56 Terms
which of the two leg bones bears more weight
tibia
which leg bone is more lateral
fibula
which leg bone is more medial
tibia
what bone in the foot transmits weight from talus
calcaneus
what is the most common site of ankle sprains
anterior talofibular ligament
what actions does the transverse tarsal joint allow for
inversion and eversion, rotation, circumduction
what actions does the subtalar joint allow for
inversion and eversion
what is the fat filled, diamond shaped space posterior to the knee joint through which the major vessels and nerves traverse to enter the leg
popliteal fossa
what is the superolateral boundary of the popliteal fossa
biceps femoris
what is the supermedial boundary of the popliteal fossa
semimembranosus
what is the inferior boundary of the popliteal fossa
gastrocnemius
what is the floor of the popliteal fossa
popliteal surface of femur, popliteus
what is the roof of the popliteal fossa
skin and popliteal fascia
what are the contents of the popliteal fossa
popliteal artery and vein, tibial and common fibular nerves, termination of small saphenous vein, lymph nodes and vessels, posterior cutaneous nerve of the thigh
what are the compartments of the leg
anterior, lateral and posterior
what is in the anterior compartment of the leg
dorsiflexors of foot, extensors of toes, deep fibular nerve
what is in the lateral compartment of the leg
evertors of foot (eversion), superficial fibular nerve
what is in the posterior compartment of the leg
plantarflexors of foot, flexors of toes, tibial nerve
what does the crural fascia attach to
tibia and superior and inferior extensor retinacula
what action does the tibialis anterior do
dorsiflexes and inverts foot
what innervates the tibialis anterior
deep fibular nerve
what action does the extensor hallucis longus do
dorsiflex foot and extend hallux
what innervates the extensor hallucis longus
deep fibular nerve
what action does the extensor digitorum longus do
dorsiflexes foot and extends digits 2-5
what innervates extensor digitorum longus
deep fibular nerve
what action does fibularis tertius do
dorsiflex and evert foot
what innervates fibularis tertius
deep fibular nerve
what action does fibularis longus do
evert and weak plantar flexion
what innervates the fibularis longus
superficial fibular nerve
what action does fibularis brevis do
evert and weak plantar flexion
what innervates fibularis brevis
superficial fibular nerve
what action does the gastrocnemius do
plantar flexion and flexes knee
what innervates the gastrocnemius
tibial nerve
what action does the soleus do
plantar flexion
what innervates the soleus
tibial nerve
what action does the plantaris do
plantar flexion (weak)
what innervates the plantaris
tibial nerve
what action does the popliteus do
unlock knee
what innervates the popliteus
tibial nerve
what action does the flexor hallucis longus do
plantar flexion (weak), hallux flexion
what innervates the flexor hallucis longus
tibial nerve
what action does the flexor digitorum longus do
plantarflexion (weak) flexes digits 2-5
what innervates the flexor digitorum longus
tibial nerve
what action does the tibialis posterior do
plantar flexes and inverts foot
what innervates the tibialis posterior
tibial nerve
what travels through the tarsal tunnel
tibialis posterior, flexor digitorum longus, posterior tibial artery and vein, tibial nerve, flexor hallucis longus
what are the branches of the common fibular nerve
deep and superficial fibular nerve
what nerve provides innervation to anterior compartment of leg
deep fibular nerve
what nerve provides innervation to lateral compartment of leg
superficial fibular nerve
what nerve provides innervation to posterior compartment of leg
tibial nerve
what nerves arise between the fibularis longus
deep fibular and superficial fibular
what nerve travels deep to the transverse intermuscular septum
tibial nerve
what vessel supplies the anterior compartment of the leg
anterior tibial artery
what vessel supplies the posterior compartment of the leg
posterior tibial artery
venae comitantes
more than one channel which surround the artery accompanied, allows arterial pulse to help propel blood back to heart along with muscle contractions
where does the small saphenous vein drain
popliteal vein in the popliteal fossa