Inner Ear Anatomy Diagram - Semicircular Canals, Cochlea & Vestibular System #3225908 (License: Personal Use)

This vintage-style line drawing depicts the complex bony and membranous labyrinth of the human inner ear. Key structures include the spiral-shaped cochlea (labeled 1) responsible for hearing, the three semicircular canals (2) involved in rotational balance, and the vestibule (3) housing the utricle and saccule for linear acceleration detection. Fine hatching illustrates tissue density and spatial relationships within the petrous temporal bone.

Used in medical textbooks, otology resources, and anatomy courses to teach vestibular and auditory system structure; matches user intent for educational, clinical reference, or historical illustration purposes.