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 (ĕp′ə-mĭz′ē-əm, -mĭzh′ē-)
n. pl. ep·i·mys·i·a (-mĭz′ē-ə, -mĭzh′-)
The external sheath of connective tissue surrounding a muscle.

[New Latin epimȳsium : epi- + Greek mūs, muscle; see mūs- in Indo-European roots.]


n, pl -sia (-zɪə)
(Anatomy) anatomy the sheath of connective tissue that encloses a skeletal muscle
[from New Latin, from epi- + Greek mus mouse, muscle]


(ˌɛp əˈmɪz i əm, -ˈmɪʒ-)

n., pl. -my•si•a (-ˈmɪz i ə, -ˈmɪʒ-)
the sheath of connective tissue around a muscle.
[1895–1900; epi- + Greek mŷs mouse, muscle (compare myo-) + -ium2]
References in periodicals archive ?
Bony contact was established, and hydrodissection with 2mL of isotone saline confirmed correct needle tip position on the transverse process and deep to the epimysium of the erector spinae muscle.
(2011) reported that decrease of muscle stiffness was caused by increasing the flexibility and movement of the aponeurosis and the connective tissue, e.g., endomysium, perimysium, and epimysium, instead of lengthening muscle fiber.
Changes to the viscosity of HA causes densification of tissue and can modify the function of fascia, nerve receptors, muscle layers (epimysium and perimysium gliding) and hydrodynamic properties of connective tissue.
Grafts such as vein (3,8), artery (3), muscle (9-11), epimysium (7) and epineurium (4,12) have been used with tubulisation techniques as nerve guide conduits.
Connective tissue of skeletal muscle that forms the endomysium, perimysium and epimysium provides structural frame for muscle tissue.
The AP was, in fact, the only region to which the intrascar liquid had direct access; the epimysium of the muscles was intact so that the liquid could not accumulate either subcutaneously (a situation not uncommon in case of "tennis leg" injuries) or deeply, with respect to the Achilles tendon.
Other problems associated with developing low back pain are decreased vascular flow, and the formation of adhesions in the muscle and fascia wrapping around muscle fascicles (perimysium) as well as fascia surrounding the whole muscle (epimysium).