This is a set of 3D visualization models of cow anatomical structures, presenting the cow’s external form through to its internal structures in a layered display:Full External View: Shows the coat color and physical characteristics of a typical dairy cow;Transparent Anatomical Layer: Uses a semi-transparent effect to overlay the skeletal, vascular, and visceral systems, intuitively showing the positional relationships between structures;Skeletal System Layer: Displays the cow’s complete skeleton independently, clearly presenting the form and articulation of the skull, spine, ribcage, and limb bones;Circulatory and Visceral Layer: Separately illustrates the cow’s cardiovascular system (red arteries, blue veins) and major internal organs (heart, lungs, stomach, etc.), clearly showing vascular pathways and organ distribution.