Dissection of plantar aspect of left foot

Nerve supply to flexor hallucis brevis muscle

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Image #201-3

Dissection of plantar aspect of left foot

Nerve supply to flexor hallucis brevis muscle

The flexor hallucis brevis has been dissected to show the branches of the medial plantar nerve entering the muscle along with the branches of the medial plantar artery. The flexor digitorum brevis has been excised.

1. Common plantar digital artery
2. Location of metatarsophalangeal joint
3. Flexor hallucis longus muscle
4. Abductor hallucis muscle (cut off)
5. Oblique head of adductor hallucis muscle
6. Flexor hallucis brevis muscle (dissected)
7. Branch of medial plantar nerve to flexor hallucis brevis muscle
8. Branch of medial plantar artery
9. Tibialis posterior muscle (tendon at insertion into medial cuneiform)
10. Flexor digitorum brevis muscle (tendon cut off within synovial sheath)
11. Synovial sheath
12. 1st, 2nd, and 4th lumbrical muscles (3rd absent)
13. Flexor digiti minimi brevis muscle
14. Abductor digiti minimi muscle
15. Lateral intermuscular septum
16. Flexor digitorum longus muscle
17. Deep branch lateral plantar nerve
18. Lateral plantar nerve
19. Quadratus plantae muscle
20. Medial plantar nerve