Axis Scientific Human Sphenoid Bone Model | Cast From a Real Human Sphenoid Bone Specimen | Life Size Replica Details All Fissures, Canals, and Processes | Includes Product Manual | 3 Year Warranty This beautiful model of the human sphenoid bone is brought to you by Axis Scientific. It features realistic bone texture and shows the bony landmarks. The sphenoid bone is a unique part of the skull that is the muscle attachment point for most of the muscles involved in chewing. Notable landmarks include: <ul class="a-unordered-list a-vertical"> Greater Wing Foramen Spinosum Sella Turcica Lateral Plate Optic Grove This line of products was designed by and for medical professionals, using only the finest materials to craft each model. Made by Axis Scientific. Measures roughly 6x4x4 inches. Weighs under one pound.