Leg muscles

Leg Muscles

The leg musculature is divided into three regions:

  • Previous Region
  • Lateral Region
  • Later Region

Leg Muscle Division

 

Previous Region   Lateral Region
Tibial Anterior
Long Finger Extender
Long Hallux Extender
Fibular Third		   Long Fibular
Fibular Short
Later Region
Surface layer

Medial Gastrocnemius
Lateral Gastrocnemius
Soleus
Planting Delgado

 Deep layer

Popliteal
Long Finger Flexor
Hallux Long Flexor
Posterior Tibial

Leg Muscle Division

Previous Region

Tibial Anterior1. PREVIOUS TIBIAL

Proximal Insertion: Lateral tibial condyle and proximal ½ of tibial lateral face and interosseous membrane
Distal Insertion: Medial cuneiform and base of the 1st metatarsal
Innervation: Deep Fibular Nerve (L4 & #8211; S1)
Action: Dorsal Flexion and Inversion of the Foot

 

 

 

 

Long Finger Extender2. FINGER EXTENDER

Proximal Insertion: Lateral tibial condyle, proximal fibula and interosseous membrane
Distal Insertion: Middle and distal phalanx of the 2nd to 5th fingers
Innervation: Deep Fibular Nerve (L4 & #8211; S1)
Action: Extension of MF, IFP and IFD from 2nd to 5th fingers

 

 

 

 

 

 

Long Hallux Extender3. HALUX LONG EXTENSOR

Proximal Insertion: 2/4 intermediate fibula and interosseous membrane
Distal Insertion: Distal Hallux Phalanx
Innervation: Deep Fibular Nerve (L4 & #8211; S1)
Action: Hallux Extension, Dorsal Flexion, and Foot Inversion

 

 

 

Fibular Muscle Third4. THIRD FIBER

Proximal Insertion: 1/3 distal to the anterior aspect of the fibula
Distal Insertion: Base of the 5th metatarsal
Innervation: Deep Fibular Nerve (L5 & #8211; S1)
Action: Foot Eversion

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Lateral Region

Short Fibular Muscle1. SHORT FIBER

Proximal Insertion: 2/3 distal to the lateral aspect of the fibula

Distal Insertion: Base of the 5th metatarsal
Innervation: Superficial Fibular Nerve (L4 & #8211; S1)
Action: Plantar Flexion and Foot Eversion

 

 

 

 

Long Fibular Muscle2. LONG FIBER

Proximal Insertion: Head, 2/3 proximal to the lateral surface of the fibula and lateral tibial condyle
Distal Insertion: 1st metatarsal and medial cuneiform
Innervation: Superficial Fibular Nerve (L4 & #8211; S1)
Action: Plantar Flexion and Foot Eversion

 

 

 

 

Later Region – Surface layer

Lateral and Medial Gastrocnemius Muscle 1. MEDIAL GASTROCNEMIUM

Proximal Insertion: Medial condyle of the femur
Distal Insertion: Calcaneal
Innervation: Tibial Nerve (S1 & #8211; S2)
Action: Knee Flexion and Plantar Ankle Flexion

 

 

 

 

 

 

Lateral and Medial Gastrocnemius Muscle 2. SIDE GASTROCNEMIUM

Proximal Insertion: Femoral lateral condyle
Distal Insertion: Calcaneal
Innervation: Tibial Nerve (S1 & #8211; S2)
Action: Knee Flexion and Plantar Ankle Flexion

 

 

 

 

 

 

 

Soleus muscle 3. SOLID

Proximal Insertion: 1/3 middle of tibial medial face and fibular head
Distal Insertion: Calcaneal (gastrocnemius tendon)
Innervation: Tibial Nerve (L5 & #8211; S1)
Action: Plantar Ankle Flexion

 

 

 

 

 

 

Thin Plantar Muscle4. SLANT PLANTING

Proximal Insertion: Femoral lateral condyle
Distal Insertion: Calcaneal
Innervation: Tibial Nerve (L4 & #8211; S1)
Action: Helps the Sural Triceps

 

 

 

 

 

 

 

 

 

Posterior Region & #8211; Deep layer

Popliteal Muscle 1. POPLITE

Proximal Insertion: Femoral lateral condyle
Distal Insertion: Sole line of the posterior tibial surface
Innervation: Tibial Nerve (L4 & #8211; S1)
Action: Knee Flexion and Medial Rotation

 

 

 

 

Flexor Long Finger Muscle2. LONG FLEXOR OF FINGERS

Proximal Insertion: Posterior face of tibia
Distal Insertion: Distal Phalanges of 2nd to 5th Finger
Innervation: Tibial Nerve (L5 & #8211; S1)
Action: Plantar Flexion and Ankle Inversion, MF Flexion, IFP and IFD 2nd to 5th Fingers

 

 

 

 

 

Flexor Long Hallux Muscle3. HALUX LONG FLEXOR

Proximal Insertion: 2/3 distal to the posterior surface of the fibula and interosseous membrane
Distal Insertion: Distal Hallux Phalanx
Innervation: Tibial Nerve (L5 & #8211; S2)
Action: Hallux Flexion, Plantar Flexion and Ankle Inversion

 

 

 

 

Posterior Tibial Muscle4. AFTER TIBIAL

Proximal Insertion: Posterior face of tibia and proximal 2/3 of fibula and interosseous membrane
Distal Insertion: 3 cuneiform (medial, middle and lateral), cuboid, navicular and base of the 2nd to 4th metatarsals
Innervation: Tibial Nerve (L5 and S1)
Action: Plantar Flexion and Inversion of the Foot

 

 

 

 

Leg Muscles
Previous View & #8211; Superficial Dissection
 Leg Muscles - Anterior View - Superficial Dissection
FSource: NETTER, Frank H .. Atlas of Human Anatomy. 2 ed. Porto Alegre: Artmed, 2000.
Leg Muscles
Previous View & #8211; Deep Dissection
 Leg Muscles - Anterior View - Deep Dissection
Source: NETTER, Frank H .. Atlas of Human Anatomy. 2 ed. Porto Alegre: Artmed, 2000.
Leg Muscles
Side view
 Leg Muscle - Side View
Source: NETTER, Frank H .. Atlas of Human Anatomy. 2 ed. Porto Alegre: Artmed, 2000.
Leg Muscles
Rear View & #8211; Superficial Dissection
 Leg Muscle - Posterior View - Superficial Dissection
Source: NETTER, Frank H .. Atlas of Human Anatomy. 2 ed. Porto Alegre: Artmed, 2000.
Leg Muscles
Rear View & #8211; Intermediate Dissection
 Leg Muscle - Posterior View - Intermediate Dissection
Source: NETTER, Frank H .. Atlas of Human Anatomy. 2 ed. Porto Alegre: Artmed, 2000.
Leg Muscles
Rear View & #8211; Deep Dissection
 Leg Muscle - Posterior View - Deep Dissection
Source: NETTER, Frank H .. Atlas of Human Anatomy. 2 ed. Porto Alegre: Artmed, 2000.

 

Lower member
Hip
Thigh
Foot 

 

 

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