Describe the pathway of the deep fibular nerve starting at the roots.

Expert Solution

THE DEEP FIBULAR NERVE

1.It is one of the terminal branch of the common fibular nerve.

2.It is nerve of the leg.

3 Its motor function is that it ineervates the muscles in the anterior part of leg.,its sensory function is that it innervates the traingular region of the skin between 1st and 2nd toes.

4. The deep fibular nerve arises from sciatic nerve,this nerves bifurcates into common fibular and the tibial nerves.

5.The common nerve give rises to two terminal branches the superficial and the deep fibular branches by wraping around the neck of fibula..

6 This nerve arises from the superolateral aspect of the leg between the fibularis longus and neck of the fibula.

7. THE nerve than moves from lateral compartment to the anterior compartment of the leg,it than follows the course of the anterior tibial artery.,together this two structures will pass between the tibialis anterior and extensor hallucis longus in the inferior leg.

8. the deep fibular nerves cross the ankle joint and it passes anterior to the distal tibia and travels deep to the extensor reticulum,it terminates in the dorum of the foot where it divides into

1 LATERAL BRANCH- it inervates some of the intrinsic muscles of the foot., this nerve passes across the tarsus beneath the extensor digitorum brevis and supplies the extensor digitorum brevis, this nerve ends in pseudoganglion deep to the extensor digitroum brevis.

2.MEDIAL BRANCH- it innervates the skin of 1st and 2nd toes.,it accompanies the dorsalis pedis artery a;long the dorsum of the foot and at the first interosseous space, which divides into two dorsal digital nerves which supply the toes.

FUNCTIONS

1 It supplies the muscular branches to the anterior compartment of the extensor muscles in the leg ,which also includes the tibialis anterior ,extensor digitorum longus ,peronerus tertius ,extensor hallucis longus.

CLINICAL SIGNIFICANCE

damage to deep fivrular nerve is possible with traumatic injury,it also subject to injury from diabetes ischemia and infectious diseases.

Sydney Mullin answered 2 years ago

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