1. A model for anatomic training, comprising: a visibly clear thermoplastic elastomer matrix formed with at least one contoured surface, the contoured surface simulating at least a portion of a human body, the visibly clear thermoplastic elastomer matrix providing visible needle tracks resulting from needle penetration and extraction of a needle along the path of the needle after insertion at a point on the contoured surface to a target below the contoured surface, at least a portion of the needle tracks extending along the path remaining visible until the needle tracks are fused closed with a heat source, whereby the needle tracks are fused closed upon heating the thermoplastic elastomer matrix such that the needle tracks are no longer visible in the thermoplastic elastomer matrix; and a skeletal structure embedded within the visibly clear thermoplastic elastomer matrix at the same location, relative to the contoured surface, as the corresponding skeletal structure is located in a human body, at least a portion of the skeletal structure producing a fluoroscopic image with an image contrast representative of the structure of human bone corresponding to the at least a portion of the skeletal structure.