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mesenchymal layer of pelvic urethra of female
mesenchymal pad of pelvic urethra of female
EMAPA:32287
The mesenchymal pad of pelvic urethra of female (TS:24-TS:27). Three distinct clusters of condensed mesenchyme, centred on the midline of the pelvic urethra develop in the mesenchymal layer of the pelvic urethra of female and can be seen from TS:24 to birth (TS:27). Subdivided into anterior mesenchymal pad of pelvic urethra, dorsal mesenchymal pad of pelvic urethra and ventral mesenchymal pad of pelvic urethra of female. The mesenchymal pads are located where the prostate buds develop in males and are thought to play a role in prostate differentiation. Female mesenchymal pads are smaller and more elongated than those in the male. The pads are visible in haematoxylin and eosin stained tissue and are marked by certain genes; all 3 pads are marked at E17 by Fgf10 mRNA (also present in non-mesenchymal pad mesenchyme) and Scmh1 mRNA specifically marks the ventral mesenchymal pad of pelvic urethra of male/female.
anatomical_structure
TS24
TS28