The brim of the pelvis is spelled as /brɪm əv ðə ˈpɛlvɪs/. The 'b' sound is followed by the 'r' sound, which is then followed by the short 'i' sound. The 'm' sound is followed by the schwa sound and the 'v' sound. 'Of' is spelled as it sounds, with a short 'o' sound and 'f' sound. 'The' is also spelled as it sounds, with a voiced 'th' sound and the short 'e' sound. 'Pelvis' is spelled with the short 'e' sound followed by 'l', 'v', and 's' sounds.
The term "brim of the pelvis" refers to the uppermost part of the pelvis, also known as the pelvic inlet or the pelvic brim. It is a critical anatomical landmark that demarcates the division between the true pelvis and the false pelvis. Located at the pelvic brim are important structures such as the sacral promontory at the back, the iliopectineal line along the sides, and the pubic symphysis at the front.
In terms of its anatomical shape, the brim of the pelvis is generally described as oval or heart-shaped, which varies between individuals. It represents the boundary through which the fetus must pass during childbirth, making it a crucial consideration in obstetrics.
The brim of the pelvis is essential for assessing the size and capacity of the pelvic cavity, which is an important consideration when evaluating childbirth feasibility or planning surgical interventions, such as cesarean sections. It allows healthcare professionals to estimate the dimensions of the pelvic inlet, which are vital in determining the appropriate management for a successful delivery.
Understanding the brim of the pelvis requires knowledge of its landmarks and measurements. There are various methods to determine the size and shape of the pelvic inlet, including manual palpation, radiological imaging, and anthropological measurements. Overall, the brim of the pelvis plays a key role in obstetrics and pelvic anatomy and is significant in determining the potential for successful childbirth or requiring medical intervention.
• The boundary of the inlet of the pelvis formed by the upper edge of the body of the pubis and the ileopectineal line on each side and the promontory of the sacrum behind.
• Inlet of the p., superior strait, apertura pelvis superior; the narrow ring formed by the line of the promontory of the sacrum and the iliopectineal lines, separating the false from the true pelvis.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.