Flexor digitorum longus muscle

From WikiMD's Wellness Encyclopedia
1123 Muscles of the Leg that Move the Foot and Toes c

Flexor digitorum longus muscle

The flexor digitorum longus muscle is a muscle located in the lower leg. It is one of the deep muscles of the posterior compartment of the leg and plays a crucial role in the movement of the foot and toes.

Anatomy[edit | edit source]

The flexor digitorum longus muscle originates from the posterior surface of the tibia, specifically from the middle third of the bone. It then travels down the leg, passing behind the medial malleolus of the tibia, and enters the sole of the foot. The muscle tendon splits into four separate tendons, each of which inserts into the distal phalanges of the second to fifth toes.

Function[edit | edit source]

The primary function of the flexor digitorum longus muscle is to flex the lateral four toes. This action is essential for activities such as walking, running, and maintaining balance. Additionally, the muscle assists in plantarflexion of the foot at the ankle joint and helps to support the longitudinal arch of the foot.

Innervation[edit | edit source]

The flexor digitorum longus muscle is innervated by the tibial nerve, which is a branch of the sciatic nerve. The tibial nerve provides the necessary motor signals for the muscle to contract and perform its functions.

Blood Supply[edit | edit source]

The blood supply to the flexor digitorum longus muscle is primarily provided by the posterior tibial artery, which ensures that the muscle receives the oxygen and nutrients required for its activity.

Clinical Significance[edit | edit source]

Injuries or conditions affecting the flexor digitorum longus muscle can lead to difficulties in toe flexion and foot movement. Common issues include muscle strains, tendinitis, and nerve compression syndromes. Proper diagnosis and treatment are essential for restoring normal function and preventing long-term complications.

Related Muscles[edit | edit source]

The flexor digitorum longus muscle works in conjunction with other muscles in the posterior compartment of the leg, including the flexor hallucis longus muscle and the tibialis posterior muscle. These muscles collectively contribute to the complex movements of the foot and toes.

See Also[edit | edit source]

References[edit | edit source]

External Links[edit | edit source]

WikiMD
Navigation: Wellness - Encyclopedia - Health topics - Disease Index‏‎ - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes

Search WikiMD

Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro / Zepbound) available.
Advertise on WikiMD

WikiMD's Wellness Encyclopedia

Let Food Be Thy Medicine
Medicine Thy Food - Hippocrates

Medical Disclaimer: WikiMD is not a substitute for professional medical advice. The information on WikiMD is provided as an information resource only, may be incorrect, outdated or misleading, and is not to be used or relied on for any diagnostic or treatment purposes. Please consult your health care provider before making any healthcare decisions or for guidance about a specific medical condition. WikiMD expressly disclaims responsibility, and shall have no liability, for any damages, loss, injury, or liability whatsoever suffered as a result of your reliance on the information contained in this site. By visiting this site you agree to the foregoing terms and conditions, which may from time to time be changed or supplemented by WikiMD. If you do not agree to the foregoing terms and conditions, you should not enter or use this site. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.

Contributors: Prab R. Tumpati, MD