
Locate indifferent gonad on this anatomical reference. Read the original plate labels to confirm the view and adjacent structures.
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sex differentiation: labelled anatomical figure. Original source colours and labels retained.
Image: OpenStax / University of Hawaiʻi adapted teaching figures; original contributors credited at source · Source / original · CC BY 4.0 — figure credits at sourceNumbered markers and focused views are Mediveerse learning overlays; the original reference is linked above.
Gonadal and duct differentiation
Understand what you see.
Coordinates gonadal, ductal and external reproductive development through interacting genetic and hormonal pathways.
Zoom into the original labels. Practise pointing out each structure, then explain it aloud. Diagrams are teaching references; specimen appearance and slide staining vary.
How to recognise it.
- Early reproductive structures are initially indifferent
- Paired duct systems have different fates
- Hormonal and genetic signals guide differentiation
Point them out.
Tap a number to open its reference, zoom in and locate the structure. Numbers stay the same across views. This key follows landmarks visible in the reference images.
Think first. Then reveal.
Say your answer aloud before opening the suggested response.
01How do you identify gonadal and duct differentiation?+
Early reproductive structures are initially indifferent. Paired duct systems have different fates. Hormonal and genetic signals guide differentiation.
02What supports persistence of mesonephric ducts in typical testicular development?+
Testosterone from fetal Leydig cells; Sertoli-cell anti-Müllerian hormone promotes paramesonephric regression.
03What do paramesonephric ducts contribute in typical ovarian development?+
Uterine tubes, uterus and upper vaginal components through fusion and differentiation; lower vagina has urogenital-sinus contributions.
04Which structures should you point out on this reference?+
Indifferent gonad; Mesonephric ducts; Paramesonephric ducts. Coordinates gonadal, ductal and external reproductive development through interacting genetic and hormonal pathways.
Read the references.
Credited anatomical plates, microscopy and university teaching references. Individual image credits appear below the viewer. Historical plates can use older terminology; use the lesson text for current names.