myometrium

The myometrium is the middle layer of the uterine wall, consisting mainly of uterine smooth muscle cells (also called uterine myocytes) but also of supporting stromal and vascular tissue. Its main function is to induce uterine contractions.

Key facts

Anatomy.Name: Myometrium
Anatomy.Latin: tunica muscularis
Anatomy.Image: Illu cervix.svg
Anatomy.Caption: Uterus and uterine tubes (myometrium labeled at center right)
Anatomy.Image2: Histology of postmenopausal myometrium, intermediate magnification.jpg
Anatomy.Caption2: Histology of myometrium
Anatomy.Location: Uterus

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Research

14,291 papers

Single-cell sequencing reveals novel cellular heterogeneity in uterine leiomyomas.Human reproduction (Oxford, England) · 2022
The myometrium and uterine cervix in normal and preterm labor.The New England journal of medicine · 1984
Somatic stem cells in the myometrium and in myomas.Seminars in reproductive medicine · 2013
[Oxytocin and its role in the control of intracellular level of calcium ions in the myometrium].Ukrains'kyi biokhimichnyi zhurnal (1999 ) · 2010
First identification of microplastics in human uterine fibroids and myometrium.Environmental pollution (Barking, Essex : 1987) · 2024

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Wikidata facts

Image: Uterus (myometrium).JPG

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NCI Thesaurus ID: C12314

Sources (4)

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~5 min read

Article

8 sections

Contents

Structure
Muscular structure
Function
Contraction
Resting state
Excitation-contraction
Restoration to resting state
References

==Structure== The myometrium is located between the endometrium (the inner layer of the uterine wall) and the serosa or perimetrium (the outer uterine layer).