The model is designed as a visual aid for ... helps the students to understand the anato DEMONSTRATIONS:The model shows the relative positions, morphological characters and anatomical structures ... parts), vertebra spinal nerves (4 parts), lung (4 parts), heart (2 parts), trachea, esophagus and descending aorta, diaphragm, liver, kidney, stomach (2 parts), intestines (4 parts), male genitalia (4 parts ...