Large vein (vena cava)
At higher magnification, the components of the three tunics are evident in this H & E stained cross section. The tunica intima contains smooth muscle in the subendothelial connective tissue. The tunica media consists of circularly-arranged muscle. The tunica adventitia contains large amounts of longitudinally-oriented smooth muscle fibers interspersed with connective tissue. 400x
Tunica intima
At higher magnification, the components of the three tunics are evident in this H & E stained cross section. The tunica intima contains smooth muscle in the subendothelial connective tissue. The tunica media consists of circularly-arranged muscle. The tunica adventitia contains large amounts of longitudinally-oriented smooth muscle fibers interspersed with connective tissue. 400x
- Endothelium
At higher magnification, the components of the three tunics are evident in this H & E stained cross section. The tunica intima contains smooth muscle in the subendothelial connective tissue. The tunica media consists of circularly-arranged muscle. The tunica adventitia contains large amounts of longitudinally-oriented smooth muscle fibers interspersed with connective tissue. 400x
- Connective tissue
At higher magnification, the components of the three tunics are evident in this H & E stained cross section. The tunica intima contains smooth muscle in the subendothelial connective tissue. The tunica media consists of circularly-arranged muscle. The tunica adventitia contains large amounts of longitudinally-oriented smooth muscle fibers interspersed with connective tissue. 400x
- Smooth muscle fibers
At higher magnification, the components of the three tunics are evident in this H & E stained cross section. The tunica intima contains smooth muscle in the subendothelial connective tissue. The tunica media consists of circularly-arranged muscle. The tunica adventitia contains large amounts of longitudinally-oriented smooth muscle fibers interspersed with connective tissue. 400x
Tunica media
At higher magnification, the components of the three tunics are evident in this H & E stained cross section. The tunica intima contains smooth muscle in the subendothelial connective tissue. The tunica media consists of circularly-arranged muscle. The tunica adventitia contains large amounts of longitudinally-oriented smooth muscle fibers interspersed with connective tissue. 400x
Tunica adventitia
At higher magnification, the components of the three tunics are evident in this H & E stained cross section. The tunica intima contains smooth muscle in the subendothelial connective tissue. The tunica media consists of circularly-arranged muscle. The tunica adventitia contains large amounts of longitudinally-oriented smooth muscle fibers interspersed with connective tissue. 400x
- Smooth muscle fibers
At higher magnification, the components of the three tunics are evident in this H & E stained cross section. The tunica intima contains smooth muscle in the subendothelial connective tissue. The tunica media consists of circularly-arranged muscle. The tunica adventitia contains large amounts of longitudinally-oriented smooth muscle fibers interspersed with connective tissue. 400x
- Connective tissue
At higher magnification, the components of the three tunics are evident in this H & E stained cross section. The tunica intima contains smooth muscle in the subendothelial connective tissue. The tunica media consists of circularly-arranged muscle. The tunica adventitia contains large amounts of longitudinally-oriented smooth muscle fibers interspersed with connective tissue. 400x
Image source >
This image was taken of a slide from the Drexel University slide collection.
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