cartilage of external acoustic meatus

• cartilage of acoustic meatus
• cartilage of auditory canal
• cartilago meatus acustici
• external acoustic meatus cartilage

• zone of organ and part of some external acoustic meatus and part of some cartilage of external ear

• zone of organ
• endoderm-derived structure
• ectoderm-derived structure
• part of some external acoustic meatus
• part of some cartilage of external ear