In young animals epiphyses are separated from the main body of the bone by a layer of cartilage, to allow for growth. The timing of their fusion gives a clue as to the age of the individual. Foramen Hole in a bone for nerves and blood vessels. Foramen magnum Large opening in the back of the skull, through which the spinal cord leaves the brain. The occipital condyles lie on either side.
Frontal bones Form the top, front part of the braincase.
Herbivore dentition Tooth pattern found in typical plant-eaters such as cattle and rabbits. Prominent incisors are separated from the cheek teeth by a long diastema . Horn core Porous bone projecting from the frontal bone , on which the horn grows. Incisors Front teeth, between the canines. Incisors grow from the premaxilla, but other upper teeth grow from the maxilla.