| Flexor digitorum longus muscle | |
|---|---|
 |
|
| Tendons of the foot, medial view. | |
| Gray's | subject #129 485 |
| Origin | |
| Insertion | |
| Artery: | posterior tibial artery |
| Nerve: | Tibial nerve |
| Action: | Primary action is Flex digits |
| Antagonist: | Extensor digitorum longus, Extensor digitorum brevis |
| Dorlands /Elsevier |
m_22/12549081 |
The Flexor digitorum longus is situated on the tibial side of the leg. A typical Adult Human skeleton commonly consists of 206 208 or more bones depending on the method used in counting A typical Adult Human skeleton commonly consists of 206 208 or more bones depending on the method used in counting Arteries are Blood vessels that carry blood away from the Heart. The posterior tibial artery of the Lower limb carries blood to the Posterior compartment of the leg and Plantar surface of the Foot, from the Accessory nerve Accessory obturator nerve Alderman's nerve Anococcygeal nerve Ansa The tibial nerve is a branch of the Sciatic nerve. The tibial nerve passes through the Popliteal fossa to pass below the arch of soleus Kinesiology, also known as Human Kinetics, is the science of human movement An antagonist is a classification used to describe a Muscle that acts in opposition to the specific movement generated by the agonist and is responsible for The Extensor digitorum longus is a Pennate muscle situated at the lateral part of the front of the leg The extensor digitorum brevis muscle is a Muscle on the upper surface of the foot that helps extend digits 2 through 4 Elsevier, the world's largest Publisher of Medical and Scientific literature, forms part of the Reed Elsevier group At its origin it is thin and pointed, but it gradually increases in size as it descends.
Contents |
Origin and insertion
It arises from the posterior surface of the body of the tibia, from immediately below the popliteal line to within 7 or 8 cm. of its lower extremity, medial to the tibial origin of the Tibialis posterior; it also arises from the fascia covering the Tibialis posterior.
The fibers end in a tendon, which runs nearly the whole length of the posterior surface of the muscle. This tendon passes behind the medial malleolus, in a groove, common to it and the Tibialis posterior, but separated from the latter by a fibrous septum, each tendon being contained in a special compartment lined by a separate mucous sheath.
It passes obliquely forward and lateralward, superficial to the deltoid ligament of the ankle-joint, into the sole of the foot, where it crosses below the tendon of the Flexor hallucis longus, and receives from it a strong tendinous slip. The medial ligament of Talocrural joint (or deltoid ligament) is a strong flat triangular band attached above to the apex and anterior and posterior borders of In Human anatomy, the ankle Joint is formed where the Foot and the leg meet
It then expands and is joined by the Quadratus plantæ, and finally divides into four tendons, which are inserted into the bases of the last phalanges of the second, third, fourth, and fifth toes, each tendon passing through an opening in the corresponding tendon of the Flexor digitorum brevis opposite the base of the first phalanx. The Quadratus plantæ ( Flexor accessorius) is separated from the muscles of the first layer by the lateral plantar vessels and nerve The Flexor digitorum brevis lies in the middle of the sole of the foot immediately above the central part of the Plantar Aponeurosis, with which it is firmly united The name Phalanx (plural phalanges) is commonly given to the Bones that form Fingers and Toes In Primates such as Humans
Variations
Flexor accessorius longus digitorum, not infrequent, origin from fibula, or tibia, or the deep fascia and ending in a tendon which, after passing beneath the laciniate ligament, joins the tendon of the long flexor or the Quadratus plantæ.
Additional images
 Bones of the right leg. Posterior surface. |
 Bones of the right foot. Plantar surface. |
 Coronal section through right talocrural and talocalcaneal joints. |
 Muscles of the back of the leg. Deep layer. |
 Cross-section through middle of leg. |
 Muscles of the sole of the foot. Second layer. |
 Circumpatellar anastomosis. |
 Nerves of the right lower extremity Posterior view. |
 The plantar nerves. |
External links
- LUC fdl
- -301596593 at GPnotebook
- SUNY Labs 15:st-0403
- Flexor+digitorum+longus at eMedicine Dictionary
- PTCentral
This article was originally based on an entry from a public domain edition of Gray's Anatomy. Loyola University Chicago is a private co-educational Jesuit university established in Chicago in 1870 as Saint Ignatius College GPnotebook is a British medical database for General practitioners (GPs The State University of New York Health Science Center at Brooklyn, better known as SUNY Downstate Medical Center, is an academic medical center and is the only one of its kind eMedicine is an online clinical medical knowledge base that was founded in 1996 by Scott Plantz and Richard Lavely two medical doctors The public domain is a range of abstract materials &ndash commonly referred to as Intellectual property &ndash which are not owned or controlled by anyone Henry Gray's Anatomy of the Human Body (or Gray's Anatomy as it has commonly been shortened is an English-language Human anatomy Textbook 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.
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