Figure 5.

(A₁,A₂) Light microscopy of semithin sections. Hamster intratesticular pathway interstitium. (A₁) shows a large group of Leydig cells can be seen in this interstitium. (A₂) shows them close to blood capillaries. RT: rete testis. V: valve. (B₁,B₂) Transmission electron microscopy. A group of Leydig cells can be seen. LC: Leydig cells. (B₂) is at higher magnification and it is easy to identify large mitochondria (M) as abundant rough and smooth endoplasmic reticula in the cytoplasm. Scale bar: A₁ = 50 µm; A₂ = 25 µm; B₁,B₂ = 5 µm. (C) Number of Leydig cells by area (mm²) and volume (mm³) in zone A (TS) and zone B (remaining testis). Results are expressed as mean ± SD (n = 12 per group). Significantly different results (p < 0.05) are expressed as: *—relative to the Zone B group. From [62].