A medical simulant applicable to training personnel in the treatment of a traumatic injury is presented. The simulant replicates the appearance of a body part and is mechanically responsive to externally applied pressure so as to mimic the response of a vascular element when a tourniquet or the like is applied to the body part. The simulant includes a compressible body, a structure, a compressible tube, and a pair of plates. The compressible body replicates an arm, a leg, or another body region. The structure replicates an injury, either penetrating or non-penetrating, and is disposed along the compressible body. The compressible tube replicates a vascular element. The plates are separately disposed within the compressible body about the compressible tube. The plates are configured to deform the compressible tube so as to interrupt flow of a liquid simulating blood therein when a compressive force is applied onto the compressible body by a tourniquet or the like.