Knee/Foot/Ankle Flashcards
Rectus Femoris
O: Anterior Inferior Iliac Spine of the Ilium
I: Quadriceps Femoris Tendon
N: Femoral N (L2, L3, L4)
F: Knee ext, hip flex
Vastus intermedius
O: anterior and lateral surface of the femur I: - quadriceps femoris tendon - lateral margin of the patella N: Femoral N (L2, L3, L4) F: knee ext
Vastus lateralus
O: Femur: - intertrochanteric line - greater trochanter - gluteal tuberosity - linea aspera I: - quadriceps femoris tendon - lateral margin of patella N: Femoral N (L2, L3, L4) F: knee ext
Vastus medialis
O: Femur: - intertrochanteric line - pectineal line - medial lip of linea aspera - medial supracondylar line I: - quadriceps femoris tendon - medial border of patella N: Femoral N (L2, L3, L4) F: knee extension
Popliteus
O: lateral femoral condyle I: posterior proximal tibia N: tibial N (L4-S1) F: - stabilizes knee joint - unlocks knee joint (ER femur on fixed tibia)
Articularis genu
O: just inferior to vastus intermedius on femur
I: suprapatellar bursa associated with knee joint
N: femoral (L3, L4)
F: pulls bursa/ capsule away from knee joint during knee extension
semi-membranosus
O: ischial tuberosity I: medial tibial condyle N: sciatic (L5-S2) F: - hip ext - knee flex - hip/leg IR
semi-tendonosus
O: ischial tuberosity I: medial pes anserine of tibia N: sciatic (L5-S2) F: - knee flex - hip ext - hip/leg IR
biceps femoris
O: - long head: ischial tuberosity - short head: linea aspera of femur I: head of fibula N: sciatic (L5-S2) F: - knee flex - hip ext - hip/leg ER
extensor digitorum brevis
O: superolateral surface of calcaneus
I: lateral sides of EDL tendons (toes 2-4)
N: deep fibular (S1, S2)
F: ext (toes 2-4)
Extensor hallucis brevis
O: superolateral surface of calcaneus
I: base of proximal phalanx of great toe
N: deep fibular (S1, S2)
F: ext of great toe @ MTP joint
Abductor hallucis
O: medial process of calcaneal tuberosity
I: medial side of base of proximal phalanx of great toe
N: medial plantar (S1, S2, S3)
F: ABD/flex great toe @ MTP joint
FDB
O: - medial process of calcaneal tuberosity - plantar aponeurosis I: sides of middle phalanges of toes 2-5 N: medial plantar (S1, S2, S3) F: flexes lateral 4 toes @ PIP joint
ABD DM
O:
- calcaneal tuberosity
- band of connective tissue connecting calcaneus with base of MT 5
I: lateral side of base of proximal phalanx of little toe
N: lateral plantar (S1, S2, S3)
F: ABD little toe @ MTP joint
quadratus plantae
O: medial and plantar borders of calcaneal tuberosity
I: FDL tendon
N: lateral plantar (S1, S2, S3)
F: assists FDL tendon in flexion of toes 2-5
lumbricals
O:
- 1st: medial side of FDL tendon
- 2nd-4th: adjacent surfaces of adjacent tendons of FDL
I: medial free margins of extensor hoods of toes 2-5
N:
- 1st: medial plantar
- 2nd-4th: lateral plantar (S2, S3)
F: flexion of MTP joints and extension of IP joints of toes 2-5
FHB
O: - cuboid - cuneiform - tendon of tibialis posterior I: base of proximal phalanx of great toe N: medial plantar (S1, S2) F: flexes great toe at MTP joint
ADD Hallucis
O:
- transverse head: MTP joints of lateral 3 toes
- oblique head: bases of MT 2-4
I: lateral side of base of proximal phalanx of great toe
N: lateral plantar (S2, S3)
F: ADD great toe @ MTP joint
FDMB
O: - base of 5th MT - Fibularis longus tendon I: lateral side of base of proximal phalanx of little toe N: lateral plantar (S2, S3) F: flexes little toe @ MTP joint
plantar interossei
O: - base of 5th MT - sheath of FL I: extensor hoods and bases of proximal phalanges of toes 3-5 N: lateral plantar (S2, S3) F: - ADD of toes 3-5 - resists ext of MTP joints - flexion of IP joints
dorsal interossei
O: sides of adjacent MT’s
I: extensor hoods and bases of proximal phalanges of toes 2-5
N: lateral plantar (S2, S3); 1st and 2nd DI also innervated by deep fibular N
F: ABD of toes 2-4
- resists MTP ext
- IP flex
Fibularis Longus (FL)
O: head of fibula I: - plantar surface of medial cuneiform - base of MT 1 N: superficial fibular (L5, S1, S2) F: - EV - plantar flex - supports arch
Fibularis brevis (FB)
O: distal lateral surface of shaft of fibula
I: base of MT 5
N: superficial fibular (L5, S1, S2)
F: EV
tibialis anterior
O: - tibia - interosseous membrane I: - medial cuneiform - base of MT 1 N: deep fibular (L4, L5) F: - dorsiflexion - IV - dynamic support of medial arch
EHL
O: - fibula - interosseous membrane I: base of distal phalanx of great toe N: deep fibular (L5, S1) F: - great toe ext - dorsiflexion
EDL
O: - fibula - interosseous membrane I: dorsal digital expansions into bases of distal and middle phalanges of lateral 4 toes N: deep fibular (L5, S1) F: - ext of lateral 4 toes - dorsiflesion
fibularis tertius
O: distal fibula I: base of MT 5 N: deep fibular (L5, S1) F: - EV - dorsiflexion
Gastrocnemius
O: - medial head: superior to medial femoral condyle - lateral head: lateral femoral condyle I: via calcaneal tendon to posterior surface of calcaneus N: tibial (S1, S2) F: - plantarflexion - knee flexion
soleus
O: soleal line and medial border of tibia; fibular head
I: via calcaneal tendon to posterior surface of calcaneus
N: tibial (S1, S2)
F:
- plantarflexion
Plantaris
O: - lateral supracondylar line of femur - oblique popliteal ligament of knee I: via calcaneal tendon to posterior surface of calcaneus N: tibial (S1, S2) F: - plantarflexion - knee flexion
tibialis posterior (Tom)
O: - tibia - interosseus mem - fibula I: - navicular tuberosity - medial cuneiform N: tibial (L4, L5) F: - IV - plantarflexion - medial arch support during walking
FDL (Dick ANd - posterior tibial A/ tibial N)
O: tibia
I: bases of distal phalanges of lateral 4 toes
N: tibial (S2, S3)
F: flexes lateral 4 toes
FHL (Harry)
O: - fibula - interosseus mem I: distal phalanx of great toe N: tibial (S2, S3) F: flexes great toe
