Lecturer KHOA TRAN DANG, M.D. THE UNIVERSITY TRAINING CENTER FOR HEALTH CARE THE UNIVERSITY TRAINING CENTER FOR HEALTH CARE PROFESSIONAL OF HCMC PROFESSIONAL OF HCMC DEPARTMENT OF ANATOMY DEPARTMENT OF ANATOMY THE RESPIRATORY SYSTEM THE RESPIRATORY SYSTEM THE RESPIRATORY SYSTEM THE RESPIRATORY SYSTEM RESPIRATORY SYSTEM RESPIRATORY SYSTEM NOSE PHARYNX LARYNX TRACHEA LUNG NASAL WALLS NASAL WALLS NASAL WALLS NASAL WALLS EXT. NOSE NASAL CAV. INF. WALL POS. WALL SUP. WALL EXT. WALL MED. WALL EXTERNAL NOSE EXTERNAL NOSE EXTERNAL NOSE EXTERNAL NOSE EXTERNAL NOSE EXTERNAL NOSE EXTERNAL NOSE EXTERNAL NOSE EXTERNAL NOSE EXTERNAL NOSE EXTERNAL NOSE EXTERNAL NOSE SUPERIOR WALL SUPERIOR WALL SUPERIOR WALL SUPERIOR WALL INFERIOR WALL INFERIOR WALL INFERIOR WALL INFERIOR WALL choanae choanae MEDIAL WALL MEDIAL WALL MEDIAL WALL MEDIAL WALL MEDIAL WALL MEDIAL WALL MEDIAL WALL MEDIAL WALL