DISSECTION 2: POSTERIOR LOWER LIMB 2 Flashcards
Gastrocnemius
O: superior to the medial and lateral condyles of the femur
I: calcaneal tendon
A: flex knee, plantarflex ankle
I: tibial N
Plantaris
O: lateral supracondylar line of femur
I:calcaneal tendon
A: weak knee flexion and ankle plantarflexion
I: tibial N
soleus
O: soleal line of tibia, head of fibula
I:calcaneal tendon
A: plantarflexion
I: tibial N
Popliteus
O: lateral condyle of femur(laterally, and lateral meniscus
I: post surface of tibia superior to soleal line
A: unlock fully extended knee, weakly flex knee
N: tibial N
Tibialis Posterior
O: tibia(post), inferior to soleal line, fibula, and interosseous membrane
I: navicular, cuboid, cuneiforms, base of metatarsals 2-4
A: plantarflexion, inversion(bc it goes medially from toe)
N: tibial N
Flexor Digitorum Longus
O: tibia(inferior to soleal line)
I: base of distal phalanges 2-4
A: flex digits 2-4, plantarflexion
N: tibial N
Flexor Hallucis Longus
O: fibula(inferior 2/3 on posterior surface) and interosseous membrane
I: base of distal hallux
A: flex hallux, plantarflexion
N: tibial N
What muscles pass through the flexor retinaculum(from anterior to posterior)
Tom, Dick, And Nervous Harry
1. Tibialis Posterior
2. Flexor Digitorum Longus
3. Tibial Artery
4. Tibial Nerve
5. Flexor Hallucis Longus
Fibularis Longus
O: fibula (superior 2/3, laterally)
I: base of 1st metatarsal, medial cuneiform
A: eversion, plantarflexion(weak)
N: superficial fibular N
Fibularis Brevis
O: fibula(inferior 2/3 of lateral surface)
I: tuberosity of 5th metatarsal(laterally)
A: eversion, weak plantarflexion
N: superficial fibular N
Superior and inferior fibular retinaculum
consists of: fib longus and brevis
insertions? add later
Fibularis Tertius
O:Inferior third of anterior surface of fibula and interosseous membrane
I: base of fifth metatarsal
A: Dorsiflexion, eversion
N: deep fibular N
