Light micrograph of a vein; Vein walls are thinner than those of arteries consisting of 2 or more layers of circularly arranged smooth muscle fibers and a thick outer layer of collagen and connective tissue. Transverse section. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Biophoto Associates |
Bildgröße: | 4244 px × 2745 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |