Model clearly shows the oral groove and their continuation into the gullet and the other side shows the details of the internal structure. The basic model shows details in a lower relief, while the standard model shows a finer detail level.
This star fish model depicts internal structures, including the digestive and reproductive organs, as well as the radial nerves for detailed examination.
This model of the HI-Virus, enlarged millions of times, shows the outer lipid membrane with protein structures, and the internal nucleus which contains the viral hereditary matter (RNA).
Average size feline elbow and shoulder features: normal bone and osteoarthritic changes to joints. Model includes the following bones: scapula, humerus, radius, ulna and nine important ligaments and tendons.