Less than life-size, this highly detailed, 5-part model replicates the entire human head and neck. Surface musculature and some of the deeper muscles are sculpted in full relief, as are major blood vessels, nerves, larynx and trachea.  The calvaria detaches exposing the brain which lifts out and divides into three sections. Complete with key to the 186 coded features.  Overall dimensions: 7×7×14 inches (18×18×36 cm).