Is the plantaris muscle the most undefined human skeletal muscle?

• DOI: 10.1007/s12565-020-00586-4
• Publication Date: 2020-11-10T14:10:11Z
• Authors: K. Kurtys; B. Gonera; Ł. Olewnik; P. Karauda; R. Shane Tubbs; M. Polguj
• Keywords: Plantaris muscle; Muscle belly

Abstract The plantaris muscle is located in the posterior aspect of superficial compartment lower leg, running from lateral condyle femur to calcaneal tuberosity. Classically, it characterized by a small and fusiform belly, which then changes into long slender tendon. From evolutionary point view, considered vestigial. However, has recently been suspected being highly specialized sensory because its high density spindles. It noticeable tendency vary respect both origin insertion. Researchers have published many reports on potential clinical significance belly tendon, including mid-portion Achilles tendinopathy, ‘tennis leg syndrome’, popliteal artery entrapment syndrome. right knee joint area was subjected classical anatomical dissection, during an atypical found examined detail. Accurate morphometric measurements were made. assessed as bifurcated. Morphologically, superior inferior parts presented. There tendinous connection (named band A) with iliotibial tract additional insertion B) semimembranosus Both bands A B presented very broad fan-shaped attachments. human considerable interest frequent morphological variations proximal part. Its specific characteristics can cause problems lead confusion diagnosis. More studies are needed define actual features functions.