BrainRegionTARGET TEA LEG

Leg

@@Home -> BiologicalLifeResearch -> BrainAreaTEA -> BrainRegionTARGET_TEA_LEG

---

This page covers biological details of component Leg. Region is part of aHuman target integrated biological model.

• Top-down path to region: Target -> Human Effectors (aHumanEffectors) -> Leg (TARGET.TEA.LEG) (see Mind Maps)
• Type: effector
• Brain area: Effector Area
• Role: unknown
• Function: Primary Execution Motor

(generated)

Components

(generated)

• Component items*:
• Leg somatic sensory data (leg-somatic-sensory)
  • Leg - somatic receptors (leg-somatic-receptors -> LPC.PN.SG.LDRG): somatic sensations
• Leg thigh (leg-thigh)
  • Leg thigh flexors (leg-thigh-flexors)
    • [- piriformis muscle] (LPC.SC.VH.PM -> piriformis-muscle): rotate laterally (outward) the thigh
    • [- adductor brevis muscle] (LPC.SC.VH.PM -> leg-adductor-brevis-muscle): adduction of hip
    • [- adductor longus muscle] (LPC.SC.VH.PM -> leg-adductor-longus-muscle): adduction of thigh
    • [- adductor magnus muscle, obturator] (LPC.SC.VH.PM -> leg-adductor-magnus-muscle-obturator): adduction of hip
    • [- adductor magnus muscle, tibial] (LPC.SC.VH.PM -> leg-adductor-magnus-muscle-tibial): adduction of hip
    • [- adductor minimus muscle, obturator] (LPC.SC.VH.PM -> leg-adductor-minimus-muscle-obturator): adduction and lateral rotation of thigh
    • [- adductor minimus muscle, tibial] (LPC.SC.VH.PM -> leg-adductor-minimus-muscle-tibial): adduction and lateral rotation of thigh
    • [- biceps femoris muscle, tibial] (LPC.SC.VH.PL -> leg-biceps-femoris-muscle-tibial): extends hip joint (long head only)
    • [- gemellus inferior muscle] (LPC.SC.VH.PM -> leg-gemellus-inferior-muscle): rotates laterally thigh
    • [- gemellus superior muscle] (LPC.SC.VH.PM -> leg-gemellus-superior-muscle): rotates laterally thigh
    • [- gluteus medius muscle] (LPC.SC.VH.PM -> leg-gluteus-medius-muscle): abduction of the hip; preventing adduction of the hip. Medial rotation of thigh
    • [- gluteus minimus muscle] (LPC.SC.VH.PM -> leg-gluteus-minimus-muscle): works in concert with gluteus medius: abduction of the hip; preventing adduction of the hip; medial rotation of thigh
    • [- gracilis muscle] (LPC.SC.VH.PL -> leg-gracilis-muscle): flexes hip, knee
    • [- iliacus muscle] (LPC.SC.VH.PM -> leg-iliacus-muscle): flexes and rotates laterally thigh
    • [- obturator externus muscle] (LPC.SC.VH.PM -> leg-obturator-externus-muscle): adduct thigh, rotate laterally thigh
    • [- obturator internus muscle] (LPC.SC.VH.PM -> leg-obturator-internus-muscle): abducts rotates laterally thigh, and stabiliser of the hip during walking
    • [- pectineus muscle, femoral] (LPC.SC.VH.PM -> leg-pectineus-muscle-femoral): thigh - flexion, adduction, medial rotation
    • [- pectineus muscle, obturator] (LPC.SC.VH.PM -> leg-pectineus-muscle-obturator): thigh - flexion, adduction, medial rotation
    • [- psoas major muscle] (LPC.SC.VH.PM -> leg-psoas-major-muscle): flexes and rotates laterally thigh
    • [- psoas minor muscle] (LPC.SC.VH.PM -> leg-psoas-minor-muscle): weak trunk flexor
    • [- quadratus femoris muscle] (LPC.SC.VH.PM -> leg-quadratus-femoris-muscle): lateral rotation of thigh
    • [- sartorius muscle] (LPC.SC.VH.PM -> leg-sartorius-muscle): flexion, lateral rotation and abduction of thigh; flexion and medial rotation of leg
    • [- tensor fasciae latae muscle] (LPC.SC.VH.PM -> leg-tensor-fasciae-latae-muscle): thigh - flexion, medial rotation; trunk stabilization
  • Leg thigh extensors (leg-thigh-extensors)
    • [- gluteus maximus muscle] (LPC.SC.VH.VM -> gluteus-maximus-muscle): external rotation and extension of the hip joint, supports the extended knee through the iliotibial tract, chief antigravity muscle in sitting
• Leg knee (leg-knee)
  • Leg knee flexors (leg-knee-flexors)
    • [- gastrocnemius muscle] (LPC.SC.VH.PL -> gastrocnemius-muscle): plantar flexion, flexion of knee (minor)
    • [- popliteus muscle] (LPC.SC.VH.PL -> popliteus-muscle): medial rotation and flexion of knee
    • [- biceps femoris muscle, peroneal] (LPC.SC.VH.PL -> leg-biceps-femoris-muscle-peroneal): flexes knee joint, laterally rotates knee joint (when knee is flexed)
    • [- semimembranosus muscle] (LPC.SC.VH.PM -> leg-semimembranosus-muscle): hip extension, knee flexion
    • [- semitendinosus muscle] (LPC.SC.VH.PM -> leg-semitendinosus-muscle): flex knee, extend hip joint
  • Leg knee extensors (leg-knee-extensors)
    • [- articularis genu muscle] (LPC.SC.VH.VL -> leg-articularis-genu-muscle): pulling the suprapatellar bursa during extension of the knee
    • [- obliquus genu muscle] (LPC.SC.VH.VM -> leg-obliquus-genu-muscle): maintaining patella position and limiting injuries to the knee
    • [- rectus femoris muscle] (LPC.SC.VH.VM -> leg-rectus-femoris-muscle): knee extension; hip flexion
    • [- vastus intermedius muscle] (LPC.SC.VH.VM -> leg-vastus-intermedius-muscle): extends knee
    • [- vastus lateralis muscle] (LPC.SC.VH.VM -> leg-vastus-lateralis-muscle): extends and stabilizes knee
    • [- vastus medialis muscle] (LPC.SC.VH.VM -> leg-vastus-medialis-muscle): extends knee
• Leg foot (leg-foot)
  • Leg foot flexors (leg-foot-flexors)
    • [- tibialis posterior muscle] (LPC.SC.VH.PL -> tibialis-posterior-muscle): inversion of the foot, plantar flexion of the foot at the ankle; key muscle and tendon for stabilization, produce inversion and assists in the plantar flexion of the foot at the ankle
    • [- abductor hallucis muscle] (LPC.SC.VH.RPL -> leg-abductor-hallucis-muscle): abducts hallux
    • [- plantaris muscle] (LPC.SC.VH.PL -> plantaris-muscle): plantar flexes foot and flexes knee
    • [- quadratus plantae muscle] (LPC.SC.VH.RPL -> leg-quadratus-plantae-muscle): assists flexor digitorum longus in flexion of DIP joints
    • [- adductor hallucis muscle] (LPC.SC.VH.RPL -> leg-adductor-hallucis-muscle): adducts hallux
    • [- accessory soleus muscle] (LPC.SC.VH.PL -> leg-accessory-soleus-muscle): plantar flexion
    • [- fibularis brevis muscle] (LPC.SC.VH.PL -> leg-fibularis-brevis-muscle): plantar flexion, eversion
    • [- fibularis longus muscle] (LPC.SC.VH.PL -> leg-fibularis-longus-muscle): plantar flexion, eversion
    • [- soleus muscle] (LPC.SC.VH.PL -> leg-soleus-muscle): plantar flexion
  • Leg foot extensors (leg-foot-extensors)
    • [- fibularis tertius muscle] (LPC.SC.VH.VL -> fibularis-tertius-muscle): dorsi flexes and everts foot
    • [- tibialis anterior muscle] (LPC.SC.VH.VL -> tibialis-anterior-muscle): dorsiflex and invert the foot
    • [- extensor hallucis brevis muscle] (LPC.SC.VH.VL -> leg-extensor-hallucis-brevis-muscle): extension of hallux
• Leg fingers (leg-fingers)
  • Leg fingers flexors (leg-fingers-flexors)
    • [- flexor digitorum longus muscle] (LPC.SC.VH.RPL -> flexor-longus-digitorum-muscle): flex digits
    • [- flexor hallucis longus muscle] (LPC.SC.VH.RPL -> flexor-longus-hallucis-muscle): flexes all joints of the big toe, plantar flexion of the ankle joint
    • [- abductor digiti minimi muscle of foot] (LPC.SC.VH.RPL -> leg-abductor-digiti-minimi-muscle): flex and abduct the fifth toe
    • [- flexor digitorum brevis muscle] (LPC.SC.VH.RPL -> leg-flexor-digitorum-brevis-muscle): flexes lateral four toes
    • [- lumbrical muscle of foot, lateral] (LPC.SC.VH.RPL -> leg-lumbrical-muscle-lateral): flex proximal phalanges and extend middle and distal phalanges of lateral four digits
    • [- lumbrical muscle of foot, medial] (LPC.SC.VH.RPL -> leg-lumbrical-muscle-medial): flex proximal phalanges and extend middle and distal phalanges of lateral four digits
    • [- flexor digiti minimi brevis muscle of foot] (LPC.SC.VH.RPL -> leg-flexor-digiti-minimi-brevis-muscle): flex and adduct the fifth toe
    • [- flexor hallucis brevis muscle] (LPC.SC.VH.RPL -> leg-flexor-hallucis-brevis-muscle): plantar nerve, medial, branches to LAFF muscles
    • [- dorsal interossei muscles of the foot] (LPC.SC.VH.RPL -> leg-dorsal-interossei-muscles): abduct toes
    • [- plantar interossei muscles] (LPC.SC.VH.RPL -> leg-plantar-interossei-muscles): abduct toes
  • Leg fingers extensors (leg-fingers-extensors)
    • [- extensor digitorum brevis muscle] (LPC.SC.VH.VL -> extensor-digitorum-brevis-muscle): extends digits 2, 3, and 4
    • [- extensor digitorum longus muscle] (LPC.SC.VH.VL -> extensor-digitorum-longus-muscle): extension of toes and ankle; Extensor hallucis brevis muscle - extension of hallux
    • [- extensor hallucis longus muscle] (LPC.SC.VH.VL -> extensor-hallucis-longus-muscle): extends the big toe and assists in dorsiflexion of the foot at the ankle; also is a weak invertor

Connectivity

(generated)

• Inbound Region Connections:*

|| Source Area || Source Region || Source Name || Type || Reference || || LPC || LPC.SC.VH.PL || Posterolateral Nucleus || gastrocnemius-muscle || (unknown reference) || || || LPC.SC.VH.PM || Posteromedial Nucleus || leg-adductor-brevis-muscle || (unknown reference) || || || LPC.SC.VH.RPL || Retroposterolateral Nucleus || flexor-longus-digitorum-muscle || (unknown reference) || || || LPC.SC.VH.VL || Ventrolateral Nucleus || extensor-digitorum-brevis-muscle || (unknown reference) || || || LPC.SC.VH.VM || Ventromedial Nucleus || gluteus-maximus-muscle || (unknown reference) ||

• Outbound Region Connections:*

|| Target Area || Target Region || Target Name || Type || Reference || || LPC || LPC.PN.SG.LDRG || Lower Dorsal Root Ganglion || leg-somatic-receptors || (unknown reference) ||

Thirdparty Circuits

(generated)

• no circuits defined

References

(generated)

• no references defined