Deep Fibular Nerve

Authors

Affiliations

Nathaniel Yomogida, B.S., SPT

Doctor of Physical Therapy

B.S. in Kinesiology

Chloë Kerstein, B.S., SPT

Doctor of Physical Therapy

B.A. in Neuroscience

Roots

Pathway

Motor innervation

Tibialis anterior¹
Extensors digitorum brevis¹
Extensors digitorum longus¹
Extensors hallucis brevis¹
Extensors hallucis Longus¹
Fibularis tertius¹

Deep Fibular Nerve Muscle Innervations
Muscle	Origin	Insertion	Innervation	Action
Extensor digitorum brevis	Calcaneus (lateral dorsal)¹ [Calcaneus (lateral dorsal)](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_digitorum_brevis.qmd#origin) [@gilroyAtlasAnatomy2020]	Bases of middle phalanx 2-4¹ [Bases of middle phalanx 2-4](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_digitorum_brevis.qmd#insertion) [@gilroyAtlasAnatomy2020]	Deep Fibular n.¹ L5 - S1¹ [Deep Fibular n.](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_digitorum_brevis.qmd#nerve) [@gilroyAtlasAnatomy2020] [L5](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_digitorum_brevis.qmd#nerve) - [S1](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_digitorum_brevis.qmd#nerve) [@gilroyAtlasAnatomy2020]	2nd-4th Toe [MTP Extension](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_digitorum_brevis.qmd#action) [@gilroyAtlasAnatomy2020] [PIP Extension](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_digitorum_brevis.qmd#action) [@gilroyAtlasAnatomy2020]
Extensor digitorum longus	Lateral condyle of Tibia¹ Fibular head and medial surface¹ IO membrane¹ [Lateral condyle of Tibia](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#origin) [@gilroyAtlasAnatomy2020] [Fibular head and medial surface](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#origin) [@gilroyAtlasAnatomy2020] [IO membrane](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#origin) [@gilroyAtlasAnatomy2020]	Dorsal aponeurosis of 2-5th distal phalanges¹ [Dorsal aponeurosis of 2-5th distal phalanges](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#insertion) [@gilroyAtlasAnatomy2020]	Deep Fibular n.¹ L4 - L5¹ [Deep Fibular n.](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#nerve) [@gilroyAtlasAnatomy2020] [L4](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#nerve) - [L5](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#nerve) [@gilroyAtlasAnatomy2020]	2nd-5th Toe [MTP Extension](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#action) [@gilroyAtlasAnatomy2020] [PIP Extension](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#action) [@gilroyAtlasAnatomy2020] [DIP Extension](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#action) [@gilroyAtlasAnatomy2020] STJ [INV or EV (position dependent)](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#action) [@gilroyAtlasAnatomy2020] TCJ [DF](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.qmd#action) [@gilroyAtlasAnatomy2020]
Extensor hallucis brevis	Calcaneus (lateral dorsal)¹ [Calcaneus (lateral dorsal)](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_hallucis_brevis.qmd#origin) [@gilroyAtlasAnatomy2020]	1st Proximal phalanx¹ [1st Proximal phalanx](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_hallucis_brevis.qmd#insertion) [@gilroyAtlasAnatomy2020]	Deep Fibular n.¹ L5 - S1¹ [Deep Fibular n.](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_hallucis_brevis.qmd#nerve) [@gilroyAtlasAnatomy2020] [L5](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_hallucis_brevis.qmd#nerve) - [S1](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_hallucis_brevis.qmd#nerve) [@gilroyAtlasAnatomy2020]	1st Toe [MTP Extension](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_hallucis_brevis.qmd#action) [@gilroyAtlasAnatomy2020]
Extensor Hallucis Longus	Fibula (middle ⅓ of medial surface)¹ IO membrane¹ [Fibula (middle ⅓ of medial surface)](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.qmd#origin) [@gilroyAtlasAnatomy2020] [IO membrane](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.qmd#origin) [@gilroyAtlasAnatomy2020]	Dorsal aponeurosis of 1st distal phalanx¹ [Dorsal aponeurosis of 1st distal phalanx](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.qmd#insertion) [@gilroyAtlasAnatomy2020]	Deep Fibular n.¹ L4 - L5¹ [Deep Fibular n.](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.qmd#nerve) [@gilroyAtlasAnatomy2020] [L4](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.qmd#nerve) - [L5](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.qmd#nerve) [@gilroyAtlasAnatomy2020]	1st Toe [MTP Extension](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.qmd#action) [@gilroyAtlasAnatomy2020] [IP Extension](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.qmd#action) [@gilroyAtlasAnatomy2020] STJ [Inversion](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.qmd#action) [@gilroyAtlasAnatomy2020] TCJ [DF](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.qmd#action) [@gilroyAtlasAnatomy2020]
Fibularis tertius	Anterior border of Distal Fibula² [Anterior border of Distal Fibula](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/fibularis_tertius.qmd#origin) [@olewnikFibularisTertiusAnatomical2019]	Shaft or Base of 5th MT¹ [Shaft or Base of 5th MT](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/fibularis_tertius.qmd#insertion) [@gilroyAtlasAnatomy2020]	Deep Fibular n.¹ L4 - L5¹ [Deep Fibular n.](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/fibularis_tertius.qmd#nerve) [@gilroyAtlasAnatomy2020] [L4](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/fibularis_tertius.qmd#nerve) - [L5](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/fibularis_tertius.qmd#nerve) [@gilroyAtlasAnatomy2020]	STJ [Eversion](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/fibularis_tertius.qmd#action) [@gilroyAtlasAnatomy2020] TCJ [DF](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/fibularis_tertius.qmd#action) [@gilroyAtlasAnatomy2020]
Tibialis Anterior	Tibia (Upper ⅔ of lateral surface)¹ IO membrane¹ Superficial crural fascia¹ [Tibia (Upper ⅔ of lateral surface)](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.qmd#origin) [@gilroyAtlasAnatomy2020] [IO membrane](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.qmd#origin) [@gilroyAtlasAnatomy2020] [Superficial crural fascia](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.qmd#origin) [@gilroyAtlasAnatomy2020]	Medial cuneiform (Medial & plantar surface)¹ 1st Metatarsal (medial base)¹ [Medial cuneiform (Medial & plantar surface)](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.qmd#insertion) [@gilroyAtlasAnatomy2020] [1st Metatarsal (medial base)](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.qmd#insertion) [@gilroyAtlasAnatomy2020]	Deep Fibular n.¹ L4 - L5¹ [Deep Fibular n.](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.qmd#nerve) [@gilroyAtlasAnatomy2020] [L4](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.qmd#nerve) - [L5](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.qmd#nerve) [@gilroyAtlasAnatomy2020]	STJ [Inversion](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.qmd#action) [@gilroyAtlasAnatomy2020] TCJ [DF](/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.qmd#action) [@gilroyAtlasAnatomy2020]

Muscle	Origin	Insertion	Nerve	Action
Tibialis Anterior	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.html#origin	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.html#insertion	?var:ref-tibialis-anterior.nerve	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/tibialis_anterior.html#action
Extensor Hallucis Longus	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.html#origin	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.html#insertion	?var:ref-extensor-hallucis-longus.nerve	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_hallucis_longus_EHL.html#action
Extensor Digitorum Longus	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.html#origin	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.html#insertion	?var:ref-extensor-digitorum-longus.nerve	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/extensor_digitorum_longus_EDL.html#action
Fibularis Tertius	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/fibularis_tertius.html#origin	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/fibularis_tertius.html#insertion	?var:ref-fibularis-tertius.nerve	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Knee and Lower Leg/Anterior compartment/fibularis_tertius.html#action
Extensor Digitorum Brevis	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_digitorum_brevis.html#origin	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_digitorum_brevis.html#insertion	?var:ref-extensor-digitorum-brevis.nerve	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_digitorum_brevis.html#action
Extensor Hallucis Brevis	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_hallucis_brevis.html#origin	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_hallucis_brevis.html#insertion	?var:ref-extensor-hallucis-brevis.nerve	/The Archive/Anatomy/Skeletal Muscles/Lower limb muscles/Ankle and Foot/Intrinsic Dorsal Foot Muscles/extensor_hallucis_brevis.html#action

Cutaneous Innervation

Sensory branches:

Lateral cutaneous n. of big toe¹
Medial cutaneous n. of 2nd toe¹

Dysfunction

Gilroy AM, MacPherson BR, Wikenheiser JC, Voll MM, Wesker K, Schünke M, eds. Atlas of Anatomy. 4th ed. Thieme; 2020.

Olewnik Ł. Fibularis Tertius: Anatomical Study and Review of the Literature. Clinical Anatomy (New York, NY). 2019;32(8):1082-1093. doi:10.1002/ca.23449

Citation

For attribution, please cite this work as:

Yomogida N, Kerstein C. Deep Fibular Nerve. https://yomokerst.com/The Archive/Anatomy/Nerves/Lumbosacral Plexus/Sacral Plexus/Common Fibular Nerve Branches/deep_fibular_nerve.html