This illustration presents transverse sections of different blood vessels: an artery, a vein, and the vena cava. Key vascular layers are labeled, including the tunica intima, tunica media, and tunica adventitia (externa), along with features like elastic laminae, collagen fibers, and the vasa vasorum. These histological…

This features labeled illustrations of three key nervous system components: the dorsal root ganglion highlighting ganglion cells and satellite cells; the spinal cord of a frog showing gray and white matter regions with the central canal; and the mammalian…

This illustration shows the structural differences between three muscle tissue types: striated (skeletal) muscle, cardiac muscle, and smooth muscle. Key features such as striations, fiber orientation, nuclei placement, and intercalated discs are labeled to highlight their unique characteristics in longitudinal and cross-sectional…