Extensor hallucis longus

Anatomy pictures

Referred pain pattern

Muscle type

• Phasic
  • Weakens when overactivated

Symptoms

• Weakness of lifting foot while walking
• Foot drop
• Nocturnal cramps
• 'Growing' pains

Muscular attachments

Videos

Short version

 

Detailed version

Myofascial lines

Superficial ventral line

• Scalp fascia
• Sternocleidomastoideus
• Sternalis/sternochondral fascia
• Rectus abdominis
• Quadriceps
  • Rectus femoris
  • Vastus lateralis
  • Vastus medialis
  • Vastus intermedius
• Subpatellar tendon
• Tibialis anterior, extensor digitorum longus, extensor hallucis longus
• Anterior crural compartment

Anatomy

Position

• Mainly deep
• Distal tendon and a small part of distal 1/2 of muscle belly is superficial

Origin

• Middle 2/4 of the anterior part of the fibula
• Middle 2/4 of the interosseus membrana

Insertion

• Dorsal surface of distal phalanx of the big toe

Main function

• Big toe MTP joint
  • Extension
• Big toe IP joint
  • Extension

Secondary function

• Foot
  • Inversion
• Ankle
  • Dorsiflexion

Nerve innervation

• Segmental
  • L5-S1
• Peripheral
  • Deep part of the peroneal nerve

Arterial supply

• Anterior branch of tibial artery