Ejaculatory Duct Obstruction Affects Seminal Vesicle Contractile Efficacy and Smooth Muscle Ultrastructure in a Rat Model

Figure 4

Representative ultrastructural photographs of seminal vesicle smooth muscle cells of rats in the partial EDO group at 4 (a, b) and 8 (c, d) weeks. (a) Increased smooth muscle cell volume and localized disorder of myofilaments in the cytoplasm (magnification ×2.0 k). (b) Mitochondria (Mit) were significantly increased, but the inner mitochondrial ridge structure was blurred and some mitochondria were vacuolated (asterisk) (magnification ×6.0 k). (c) The density of the dense plaques (Dps) was reduced, and the collagen fibers (CFs) in the interstitium were proliferated (magnification ×2.0 k). (d) Mitochondria (Mit) were fewer and with reduced volume, and their inner mitochondrial ridge structure was blurred and disordered (magnification ×6.0 k).

(a)

(b)

(c)

(d)