
Medium vein
The tunica media of veins is more heterogeneous than that of arteries, as seen by the mixture of smooth muscle and connective tissue in this vessel. Part of the tunica adventitia, the thickest layer of veins, has been removed in this preparation. 800x

Tunica intima
The tunica media of veins is more heterogeneous than that of arteries, as seen by the mixture of smooth muscle and connective tissue in this vessel. Part of the tunica adventitia, the thickest layer of veins, has been removed in this preparation. 800x

- Endothelium
The tunica media of veins is more heterogeneous than that of arteries, as seen by the mixture of smooth muscle and connective tissue in this vessel. Part of the tunica adventitia, the thickest layer of veins, has been removed in this preparation. 800x

Tunica media
The tunica media of veins is more heterogeneous than that of arteries, as seen by the mixture of smooth muscle and connective tissue in this vessel. Part of the tunica adventitia, the thickest layer of veins, has been removed in this preparation. 800x

- Smooth muscle cells
The tunica media of veins is more heterogeneous than that of arteries, as seen by the mixture of smooth muscle and connective tissue in this vessel. Part of the tunica adventitia, the thickest layer of veins, has been removed in this preparation. 800x

- Connective tissue in tunica media
The tunica media of veins is more heterogeneous than that of arteries, as seen by the mixture of smooth muscle and connective tissue in this vessel. Part of the tunica adventitia, the thickest layer of veins, has been removed in this preparation. 800x

Tunica adventitia
The tunica media of veins is more heterogeneous than that of arteries, as seen by the mixture of smooth muscle and connective tissue in this vessel. Part of the tunica adventitia, the thickest layer of veins, has been removed in this preparation. 800x