WK 13+14 Lower Leg Muscles Flashcards
OIIA: Rectus Femoris
O: AIIS and ilium superior to acetabulum
I: common quadriceps tendon, via patellar ligament to tibial tuberosity
I: Femoral Nerve
A: extends the knee joint, flexes hip joint
OIIA: Vastus Lateralis
O: greater trochanter and lateral lip of linea aspera of femur
I :common quadriceps tendon, via patellar ligament to tibial tuberosity
I: Femoral Nerve
A: extension of knee joint
OIIA: Vastus Medialis
O: intertrochanteric line and medial lip of linea aspera of femur
I :common quadriceps tendon, via patellar ligament to tibial tuberosity
I: Femoral Nerve
A: Extends the knee joint
OIIA: Vastus Intermedius
O: anterior surface and lateral surfaces of shaft of femur
I: common quadriceps tendon, via patellar ligament to tibial tuberosity
I: Femoral Nerve
A: extends the knee joint
OIIA: Articularis Genu
O: anterior surface of the distal femur
I: upper part of the synovial membrane of the knee joint
I: femoral nerve
A: pulls the articular capsule of the knee superior during knee extension
OIIA: Sartorius
O: ASIS and superior part of notch inferior to it
I : pes anserinus
I: Femoral Nerve
A: flexes, abducts, and laterally rotates hip joint; flexes knee joint
OIIA: Gracilis
O: body and inferior pubic ramus
I: pes anserinus
I: Obturator Nerve
A: adducts hip joint; flexes knee joint, medially rotating it when flexed
OIIA: Semitendinosus
O: ischial tuberosity
I: pes anserinus
I: tibial division of sciatic nerve
A: extends the hip joint; flexes the knee joint
OIIA: Semimembranosus
O: ischial tuberosity
I: posterior part of medial condyle of tibia; reflected attachment forms oblique popliteal ligament
I: tibial division of sciatic nerve
A: extends the hip joint; flexes the knee joint
OIIA: Biceps Femoris
O: long head: ischial tub
short head: linea aspera
I: lateral side of fibular head, tendon is split by fibular collateral lig
I: LH: sciatic; tibial SH: common fibular of sciatic
A: flexes knee joint, LH extends hip joint
OIIA: Extensor Hallucis Longus (EHL)
O: middle part of anterior surface of fibula and interosseus membrane
I :dorsal aspect of base of distal phalanx of great toe
I: deep fibular nerve
A: extends great toe, and dorsiflexes ankle
OIIA: Tibialis Anterior
O: lateral condyle and superior half of lateral surface of tibia and interosseus membrane
I: medial and inferior surfaces of medial cuneiform and base of first metatarsal
I: deep fibular nerve
A: dorsiflexes ankle joint and inverts subtalar joit
OIIA: Extensor Digitorum Longus ( EDL )
O: lateral condyle of tibia and superior three quarters of medial surface of fibula and interosseus membrane
I: middle and distal phalanges of lateral four digits
I: deep fibular nerve
A: extends lateral four digits and dorsiflexes ankle joint
OIIA: Fibularis Tertius
O: inferior third of anterior surface of fibula and interosseus membrane
I: dorsum of base of 5th metatarsal
I :deep fibular nerve
A: dorsiflexes ankle joint and aids in eversion of subtalar joint, It may play a special proprioceptive role in sensing sudden inversion and then contracting reflexively to protect the anterior tibiofibular ligament, the most commonly sprained ligament of the body
OIIA: Fibularis Longus
O: head and superior two thirds of lateral surface of fibula
I : base of 1st metatarsal and medial cuneiform
I :superficial fibular nerve
A: everts subtalar joint and weakly plantar flexes ankle joint
OIIA: Fibularis Brevis
O : inferior 2/3 of lateral surface of fibular
I: dorsal surface of tuberosity on lateral side of base of 5th metatarsal
I: superficial fibular nerve
A:everts subtalar joint and weakly plantar flexes ankle joint
OIIA: Gastrocnemius
O: lateral head: lateral aspect of lateral condyle of femur
medial head: popliteal surface of femur; superior to medial condyle
I: posterior surface of calcaneus via achilles tendon
I :tibial nerve
A: Plantar flexes ankle joint, raises heel during walking
OIIA: Soleus
O: posterior aspect of head and sup. quarter of posterior fibular surface; soleal line and middle third of medial border of tibial
I:posterior surface of calcaneus via achilles tendon
I: tibial nerve
A: plantar flexes ankle joint
OIIA: Plantaris
O: inferior end of lateral supracondylar line of femur; oblique popliteal lig.
I : achilles tendon
I :tibial nerve
A: weakly assists gastroc in plantarflexion; The plantaris has been considered to be an organ of proprioception for the larger plantarflexors, as it has a high density of muscle spindles
OIIA: Popliteus
O: lateral surface of lateral condyle of femur and lateral meniscus
I: posterior surface of tibia and superior to soleal line
I: tibial nerve
A: weakly flexes knee joint and unlocks it by rotating femur.
OIIA: Tibialis Posterior
O: interosseus membrane; posterior surface of tibia inferior to soleal line; posterior surface of fibula
I: tuberosity of navicular, cuneiform, cuboid, and sustentaculum tali of calacneus; bases of 2nd, 3rd, and 4th metatarsals
I: tibial nerve
A: plantarflexion; inverts foot; maintains medial longitudinal arch
OIIA: Flexor Digitorum Longus
O: medial part of posterior surface of tibia inferior to soleal line; by a broad tendon to fibula
I: bases of distal phalanges of lateral four digits
I: tibial nerve
A: flexes lateral four digits; plantar flexes ankle joint; supports longitudinal arches of the foot
OIIA: Flexor Hallucis Longus
O: Inferior two thirds of posterior surface of fibula; inferior part of interosseus membrane
I: base of distal phalanx of great toe
I : tibial nerve
A: flexes great toe at all joints; weakly plantar flexes; supports arch
