The Deluxe Eight-Part Ear is 5 times life-size, made in unbreakable vinyl. One of our most detailed ear models, it provides a more complete perspective of the middle and inner ear structures within the temporal bone. The model is displayed with all the skin peeled off the detachable auricle, exposing its cartilaginous structure, muscles, auricular arteries and nerves, as well as the entrance to the auditory canal. Sections of the petrous and mastoid portions of the temporal bone can be lifted off to expose the middle and inner ear chambers. The tympanic ring, as well as its see-through tympanic membrane and attached ossicles, can also be lifted out. The extractable labyrinth is dissectible into three portions. Half of it, consisting of the semicircular canals and vestibule, demonstrates the sense of balance. Transparent tubing with colored liquid represents two of the semicircular canals. An air bubble in each will move when tipped, demonstrating the canals' function in equilibrium. The other half of the labyrinth, upon removal, shows the vestibular and cochlear nerves, which join to form the auditory nerve. The cochlea itself separates into halves to reveal cochlear, vestibular and tympanic ducts and the branching of the cochlear nerve. 95 hand-numbered features are identified in the corresponding key.

Overall dimensions: 17x11x8 inches (43x28x20 cm) overall.

Denoyer Geppert's Autographed Anatomy Models are the only models in the world which are personally autographed and dated by their handcrafter. These incredible works of anatomical art are 100% American-made in every step, including molding, hand sanding, hand painting, number-coding, labeling and autographing. Quality is unsurpassed, and the models are backed with a Lifetime Guarantee of Satisfaction. Denoyer will repair or replace any component of any Autographed Anatomy model which proves defective due to workmanship, for as long as you own the model, at no charge. Should you ever have the need, replacement parts, repairs and refurbishing of your Autographed Anatomy model are just a toll-free phone call away.

PLEASE NOTE : Due to the handmade nature of this item, it can take 6-12 months for production and delivery. We find most of our customers are happy to wait for a model of this level of quality, made just for them!