Splenic Artery and Splenic Vein

The artery is depicted in the upper part, the vein in the lower part of the photo in both figures. The three-layered structure is quite apparent in the arterial wall. This three-layered structure can also be recognized in the venous walls, albeit less clearly. The smooth muscle fibers in the tunica me dia of the vein 10 are bundled (b). The venous tunica me dia contains strong elastic networks, which become more prominent after staining with orcein (a). Part of the venous lumen 2 is shown at the lower e dges in both micrographs.

1 Arterial lumen

2 Venous lumen

3 Internal elastic lamina

4 Tunica externa of the artery

5 Tunica media of the vein

6 Internal tunica (intima) of the artery

7 Tunica media of the artery

8 Tunica externa of the artery

9 Tunica externa of the vein

10 Tunica media of the vein

Stain: a) alum hematoxylin-orcein, b) hemalum-eosin; magnification (a and b): × 15

References

Kuehnel, W.(2003). Color Atlas of Cytology, Histology, and Microscopic Anatomy. 4^th edition . Institute of Anatomy Universitätzu Luebeck Luebeck, Germany . Thieme Stuttgart · New York .