Fibularis tertius

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Fibularis tertius
Muscles of the front of the leg. (peroneus tertius visble at center left.)
Latin	musculus fibularis tertius
Gray's	subject #129 482
Origin:	distal anterior surface of the fibula
Insertion:	dorsal surface of metatarsal 5]
Blood:
Nerve:	peroneal nerve
Action:	dorsi flexes and everts foot
Dorlands/Elsevier	m_22/12549015

The fibularis tertius (also known as peroneus tertius) is a muscle of the human body located in the lower limb. It does not exist in all individuals.

The fibularis tertius is a part of the extensor digitorum longus, and might be described as its fifth tendon.

The fibers belonging to this tendon arise from the lower third or more of the anterior surface of the fibula; from the lower part of the interosseous membrane; and from an intermuscular septum between it and the fibularis brevis.

The tendon, after passing under the transverse and cruciate crural ligaments in the same canal as the extensor digitorum longus, is inserted into the dorsal surface of the base of the metatarsal bone of the little toe.

[edit] See also

• Fibularis longus
• Fibularis brevis

[edit] External links

• LUC pert
• GPnotebook -1288372144
• SUNY Labs 15:st-0411 - "The Leg: Muscles"
• Dictionary at eMedicine Fibularis+tertius
• PTCentral

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

Muscles of the Head — Neck — Trunk — Upper limb — Lower limb— LIST OF ALL MUSCLES

ILIAC REGION/HIP FLEXORS: psoas major | psoas minor | iliacus | (Gray's s127) THIGH: anterior femoral | sartorius | quadriceps (rectus femoris, vastus lateralis, vastus intermedius, vastus medialis) | articularis genu medial femoral/adductor | gracilis | pectineus | adductor brevis | adductor longus | adductor magnus gluteal region | gluteals (maximus, medius, minimus) | tensor fasciae latae lateral rotator group | piriformis | obturator externus | obturator internus | inferior gemellus | superior gemellus | quadratus femoris posterior femoral/hamstring | biceps femoris | semitendinosus, semimembranosus | (Gray's s128) LEG: anterior crural | tibialis anterior | extensor hallucis longus | extensor digitorum longus | fibularis tertius superficial posterior crural | calf (gastrocnemius, soleus) | plantaris deep posterior crural | popliteus | flexor hallucis longus | flexor digitorum longus | tibialis posterior lateral crural | fibularis longus | fibularis brevis | (Gray's s129) FOOT: dorsal | extensor digitorum brevis | extensor hallucis brevis plantar first layer | abductor hallucis | flexor digitorum brevis | abductor digiti minimi plantar second layer | quadratus plantae | lumbrical muscle plantar third layer | flexor hallucis brevis | adductor hallucis | flexor digiti minimi brevis plantar fourth layer | dorsal interossei | plantar interossei | (Gray's s131)