The muscular wall of the uterus. SYN: tunica muscularis uteri [TA], muscular coat of uterus. [myo- + G. metra, uterus]
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myo·me·tri·um .mī-ə-'mē-trē-əm n the muscular layer of the wall of the uterus
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n.
the muscular tissue of the uterus, which surrounds the endometrium. It is composed of smooth muscle that undergoes small regular spontaneous contractions. The frequency and amplitude of these contractions alter in response to the hormones oestrogen, progesterone, and oxytocin, which are present at particular stages of the menstrual cycle and pregnancy.
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myo·me·tri·um (mi-o-meґtre-əm) [myo- + Gr. mētra uterus] TA alternative for tunica muscularis uteri.Medical dictionary. 2011.