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. 2021 Sep 27;4:1133. doi: 10.1038/s42003-021-02662-5

Fig. 2. Ovary tissue is characterized by regional differences in mechanical properties.

Fig. 2

a Maps of Brillouin shift and the corresponding BLT for a P7 ovarian cortex and the inner tissue. Both images were obtained from the same ovary. Primordial follicles (PrF) and primary follicles (PF) reside primarily in the cortex while the secondary follicles (SF) tend to be found in the inner part of the ovary, which shows a higher interstitial BLT. b Maps of Brillouin shift and BLT for a P14 ovarian cortex and the inner tissue. Similar to P7 ovaries, higher PLT is associated with the inner tissue of the ovaries, compared to the cortex. c Zoom in view of P7 ovarian cortex showing higher BLT of cells (black arrows) surrounding the oocyte, which may be associated with the presence of collagen surrounding the primordial follicle, as shown in d. Scale bar = 40 μm in a, b, and c, and 15 μm in d.