The term "upper uterine segment" refers to the upper part of the uterus during pregnancy. The pronunciation of this phrase is /ˈʌpər ˈjuːt(ə)raɪn ˈsɛɡmənt/. The first syllable "up-" is pronounced with a short u sound followed by a voiced p. The second syllable "-per" is pronounced with a short u sound followed by an unvoiced p. The third syllable "-ter-" is pronounced with a long u sound and a voiced t. The fourth syllable "-ine" is pronounced with a long i sound followed by an unvoiced n. Finally, the fifth syllable "segment" is pronounced with a short e sound and a voiced g.
The upper uterine segment, also known as the fundus, refers to the top portion of the uterus, characterized by its heightened muscularity and stretchability to accommodate fetal growth during pregnancy. It is an anatomical division of the uterus that plays a crucial role in supporting and nourishing the developing fetus.
During the initial stages of pregnancy, the upper uterine segment remains relatively small and inconspicuous. However, as the pregnancy progresses, it undergoes significant changes in size and structure. The upper uterine segment expands and becomes thicker to provide a suitable environment for the growing fetus. This expansion is facilitated by the contraction of the uterine muscles, ensuring adequate space and protection for the developing baby.
The upper uterine segment represents a vital site for interventions such as ultrasound examinations and fetal monitoring. Healthcare professionals often employ these techniques to assess fetal well-being and position, monitor fetal growth, and diagnose potential complications like placenta previa or abnormal presentations. Additionally, during labor, contractions of the upper uterine segment play a critical role in pushing the baby through the birth canal.
Understanding the anatomy and function of the upper uterine segment is essential for healthcare professionals involved in prenatal care, labor and delivery, and the management of pregnancy-related complications. Accurate assessment and monitoring of the upper uterine segment ensure the provision of appropriate care and reduce the risks associated with pregnancy and childbirth.
The main portion of the body of the gravid uterus, the contraction of which furnishes the chief force of expulsion in labor.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.