- Plantarflexion
Plantarflexion is the movement which increases the angle between the
foot and theleg , as when depressing anautomobile pedal . The word "plantar" translates as "toward the sole".The movement in the opposite direction is
dorsiflexion .It occurs at the
ankle . [cite book |author=Kyung Won, PhD. Chung |title=Gross Anatomy (Board Review) |publisher=Lippincott Williams & Wilkins |location=Hagerstown, MD |year=2005 |pages=123 |isbn=0-7817-5309-0 |oclc= |doi=]The range of motion for plantarflexion is usually indicated in the literature as 30° to 40°, but sometimes also 50°.
The nerves are primarily from the sacral spinal cord roots S1 and S2.
Muscles
Primary muscles for plantarflexion are:
*
Posterior compartment of leg
** superficial
***gastrocnemius
***soleus
***plantaris (only weak participation)
** deep
***flexor hallucis longus
***flexor digitorum longus
***tibialis posterior *
Lateral compartment of leg (only weak participation)
**peronaeus longus
** peronaeus brevisReferences
External links
*
* [http://www.gla.ac.uk/ibls/fab/images/anatomy/dorsdiag.gifDiagram at gla.ac.uk]
* [http://www.exrx.net/Articulations/Ankle.html#anchor701244 Overview at exrx.net - ankle]
* [http://www.exrx.net/Articulations/Foot.html#anchor822444 Overview exrx.net - foot]
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