Sinusoidal space

Detumescence occurs with sympathetic discharge after ejaculation. Sympathetic activity induces smooth muscle contraction of arterioles and vascular spaces leading to a reduction in blood inflow, decompression of the sinusoidal spaces, and enhanced outflow. 

Vasodilation of arteries and sinusoidal spaces of corpus cavernosum... 

Figure 16-9. Section of rat liver unexposed to toxic chemicals. Note the normal structure of hepatocytes along with sinusoidal space.

Cirrhosis occurs most frequently in the setting of alcoholic liver disease and represents the final common pathway of a number of chronic liver diseases. The development of cirrhosis is characterized by the appearance of fibroblasts and collagen deposition. This is accompanied by a reduction in liver size and the formation of nodules of regenerated hepatocytes. As a result, total liver content of cytochrome P450 is reduced in these patients. Initially, fibroblasts deposit collagen fibrils in the sinusoidal space, including the... 

Here u = nE/kT and n is the dipole moment of the chromophore. For low applied fields, when m < 1, the approximation that A2 k u / 5 + u -) may be used and the change in refractive index is nearly proportional to the square of the applied field. When a sinusoidal space charge field, sc is superposed onto a uniform applied field, Fappi, the degree and direction of the molecular alignment, A2, follow the sum of both fields (Ftotai = Fsc + -Eappi)-... 

As regards penile imaging, depiction of the tunica albuginea and of subtle anatomical features such as boundaries of the sinusoidal spaces and in-tracavernous pillars is improved (Fig. 1.5). 

Fig. 14.4a,b. Giant hemangioma of the penis, a Axial scan of the glans showing inhomogeneous echotexture by presence of multiple hypoechoic lacunae, b Axial scan on the tip of the corpora cavernosa showing a coarse echotexture of the sinusoidal spaces consistent with extension of the lesion into the corpora... 

Fig. 18.6a,b. Fibrosis of the penile crura following repeated saddle microtraumas, a Axial scan to the penile crura shows coarse echotexture of the corpora cavernosa with echogenic areas and large, irregular sinusoidal spaces, b Transverse scan to the middle penile shaft of the same patient shows normal echotexture of the corpora cavernosa... 

Afterward, the microdroplets in nontumorous tissue flow via the sinusoid into the hepatic vein or Disse s space, which lies outside of sinusoidal space. The microdroplets entering Disse s space inevitably flow into the bile canalic-uli or lymphatic channels, finally out of the liver. In the HCC tissue the microdroplets remain there for a long time, probably because tumorous tissue is not equipped with a biliary or lymphatic drainage system. 

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