- what do the muscles of the deep-posterior compartment innervate?
- tibial nerve
- what are the muscles of the quadriceps femoris?
- rectus fermoris, vastus lateralis, vastus intermedius, vastus medialis
- what do the g. medius and minimus innervate?
- superior gluteal nerve
- what do the g. minimus and medius do?
- abduction at hip; medial roation of femur. important in stabilizing pelvis during walking
- what do the lateral rotators attach to?
- proximal: pelvic girdle
distal: greater trochanter of femur - what do the lateral rotators do?
- lateral (external) rotation of femur
- what do the muscles of the anterior compartment attach to?
- proximal- tibia, fibula, interosseus membrane
distal- medial and plantar side of first metatarsal and tarsals/ dorsum of phalanges - what do the muscles of the anterior compartment innervate?
- deep fibular (peroneal) nerve
- what do the muscles of the deep-posterior compartment attach to?
- proximal: fibula, tibia, interosseus membrane
distal: phalanges, metatarsals, tarsals (plantar side) - What do the muscles of the deep-posterior compartment do?
- 1. plantarflexion of ankle
2. flexion of toes
3. inversion of foot - what do the muscles of the lateral compartment attach to?
- proximal- fibula
distal- tarsals and metatarsals - what do the muscles of the lateral compartment do?
- eversion of foot
- what do the muscles of the lateral compartment innervate?
- superficial fibular (peroneal) nerve
- what do the muscles of the medial compartment attach to?
- proximal: pubic bone
distal: lineal aspera (gracilis: medial side of proximal tibia) - what do the muscles of the medial compartment do?
- primarily adduction
- what do the muscles of the medial compartment innervate?
- obturator nerve
- what do the muscles of the posterior compartment do?
- 1. flexes leg
2. extends thigh - what do the muscles of the posterior compartment innervate?
- sciatic nerve
- what do the muscles of the superficial-posterior compartment do?
- 1. plantarflexion of the ankle
2. the gastrocnemius can also flex the knee, which makes it a synergist of the hamstrings - what do the muscles of the superficial-posterior compartment innervate?
- tibial nerve
- what do the quadriceps femoris innervate?
- femoral nerve
- what does the g. maximus innervate?
- inferior gluteal nerve
- what does the g. maximus muscle attach to?
- Proximal: iliac crest, sacrum
distal: IT band, posterior femor - what does the g. medius muscle attach to?
- Proximal: external surface of ilium gluteal lines
distal: greater trochanter - what does the g. minimus attach to?
- proximal: external surface of ilium gluteal lines
distal: greater trochanter - what does the gastrocnemius attach to?
- proximal- posterior femur (lateral and medial condyles)
distal- calcaneous - what does the gluteus maximus do?
- powerful thigh extensor; also laterally rotates the femur, back extension
- What does the Iliopsoas attach to?
- iliacus:
proximal- iliac fossa
distal- lesser trochanter
psoas major:
proximal-lumbar vertebrae
distal- lesser trochanter - what does the iliopsoas do?
- primary flexor of th thigh (agonist)
- what does the iliopsoas innervate?
- femoral nerve
- what does the rectus femoris attach to?
- proximal: AIIS
distal: tibial tuberosity via patellar tendon - what does the sartorius attach to?
- Proximal: ASIS
distal: medial side of tibia - what does the sartorius innervate?
- femoral nerve
- what does the semimembranosus attach to?
- promixal: ischial tuberosity
distal: tibia - what does the semitendinosus attach to?
- proximal: ischial tuberosity
distal: tibia - what does the vastus intermedius attach to?
- proximal: femur
distal: tibial tuberosity via patellar tendon - what does the vastus lateralis attach to?
- proximal: (linea aspera) femur
distal: tibial tuberosity via patellar tendon - what does the vastus medialis attach to?
- Proximal: (linea aspera) femur
distal: tibial tuberosity via patellar tendon - what is the action of the quadricepts femoris?
- 1. extension at the knee (as a group)
2. RF also flexes and steadies the hip joint
