Foot

Second lumbrical of left foot

LUM-bri-kal LEFT FOOT

The second lumbrical of the left foot is a small intrinsic muscle flexing the proximal toe joints while extending distal ones, aiding balance and push-off in running. Stabilizes the transverse arch during single-leg stands. Weakness affects gait in runners.

Open in 3D Viewer

Common Pain & Injury

Burning under second toe or ball of foot, like Morton's neuroma. Cramps during long stands. See podiatrist for numbness.

Anatomy & Function

Origin

Tendon of flexor digitorum longus (second slip, left foot)

Insertion

Medial base of proximal phalanx of second toe (big toe side) and extensor hood

Actions

Flexion of metatarsophalangeal joint (MTP)
Extension of interphalangeal joints (IP)
Toe adduction

Innervation

Medial plantar nerve (S2-S3, left)

Muscle Relationships

Antagonists

Interossei dorsales

Synergists

First lumbricalFlexor digitorum brevis

Trigger Points

Rarely documented; local toe pain if present.

Stretches

1Toe spreader stretch

2Marble pickups reverse

3Big toe flexor stretch

Common Conditions

Lumbrical strainMorton's neuromaMetatarsalgia

Anatomical Parts

Second lumbrical of left foot

FAQ

Lumbrical foot muscle pain?

Causes cramps under toes; massage and orthotics help.

What do foot lumbricals do?

Flex MTP and extend IP joints for balance and gait.

Second lumbrical function?

Stabilizes second toe during walking and running.

Foot intrinsic stretches?

Toe yoga strengthens and stretches lumbricals.

Related Foot Muscles

Abductor digiti minimi of left foot

This small muscle on the outer edge of the left foot spreads the little toe away from the others, aiding balance and push-off in gait. It's vital for foot arch stability during running or lateral movements. Runners and athletes appreciate its role in preventing foot pronation issues.

Abductor digiti minimi of right foot

This muscle runs along the outer arch of the right foot, abducting the little toe to support lateral stability and toe-off in walking. Essential for preventing supination injuries in trail running. It matters for overall foot mechanics in dynamic sports.

abductor hallucis

This medial foot muscle abducts and flexes the big toe, supporting the arch and propulsion in walking or sprinting. Key for preventing flat feet and plantar fasciitis. Runners target it for injury prevention and efficiency.

adductor hallucis

Inner foot muscle adducts the big toe, stabilizing the transverse arch during toe-off. Prevents hallux valgus and aids propulsion. Important for barefoot training enthusiasts.

extensor hallucis brevis

The extensor hallucis brevis is a small muscle on the top of the foot that specifically extends the big toe (hallux). It works alongside other extensors to lift the toes during walking or running, preventing toes from dragging. For fitness enthusiasts, it's key for foot stability in activities like sprinting or plyometrics.

First lumbrical of left foot

The first lumbrical of the left foot is a small worm-like muscle that flexes the big toe's base and extends its tip, stabilizing during gait. It fine-tunes toe position for balance in yoga or barefoot training. Key for foot intrinsic strength.

First lumbrical of right foot

The first lumbrical of the right foot flexes the big toe's proximal joint and extends the distal one for precise foot control. Essential for push-off in unilateral sports like kicking. Builds foot dexterity for minimalist shoe training.

flexor accessorius

Flexor accessorius (quadratus plantae) is a flat muscle in the sole of the foot that assists flexing the lateral toes. It aligns toe flexors for even toe curl in gripping surfaces. Useful for climbers and martial artists needing foot grip.

Foot Pain Guide

Common causes and relief

Activities & Sports

See which activities use Second lumbrical of left foot