Cow longitudinal secton of bone.
Front leg bone to view internal structure, periosteum, solid bone layer, spongy bone, medullary canal, yellow bone marrow, red bone marrow, epiphysial line, head of the long bone with articulating surface of the hyaline cartilage.
Preserved cow material is a byproduct of the food industry. Cows are not raised specifically for dissection. The animal material is “recycled” for educational use.