... and myosis, etc; simulate carotid arterial pulse; 2. Airway management: realistic mouth, nose, tongue, gum, pharynx, larynx, esophagus ... simulated bone marrow indicates correct puncture position; 13. LAN teaching: unified teaching for all students, self-study ... , tracheal cannula, transfusion set Software:1. LAN application software for teacher V1.02. LAN application software for students V1.03. ACLS ...