The Ear

Overview

The ear enables hearing and balance by converting sound and movement into neural signals. This section introduces the external, middle and inner ear, outlining how each region contributes to sound transmission and equilibrium.

Key Structures

Articles cover the external ear, middle ear ossicles, inner ear structures and the auditory tube. Each topic explains boundaries, functions and key anatomical relationships supported by diagrams and clinical notes.

Clinical Relevance and Learning Focus

Understanding ear anatomy is vital for interpreting hearing loss, vertigo and middle ear infection. The content links structure to function and highlights the importance of anatomy in examination and surgical practice.

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Labeled diagram of the anterior surface of the auricle (pinna) of the external ear.

The External Ear

Labelled diagram of the two main parts of the middle ear: the tympanic cavity and epitympanic recess.

The Middle Ear

Diagram of the components of the membranous labyrinth, highlighting structures relevant to the vestibulocochlear nerve and the inner ear.

The Inner Ear

Diagram of the ear in cross-section showing the Eustachian tube extending from the tympanic cavity toward the nasopharynx.

The Eustachian (Auditory) Tube

Popular

Illustration of the lateral abdominal wall showing the external oblique muscle, its aponeurotic fibres, and the linea alba.
Encyclopaedia

External Oblique

by Aren Mnatzakanian

Posterior anatomical illustration of the back showing the semispinalis and multifidus muscles, highlighted in red and yellow respectively.
Encyclopaedia

Semispinalis

by Sharanya Bhaskaran

Posterior view of the opened pharynx showing the longitudinal muscles and pharyngeal constrictors, with the nasal and oral cavities labeled.
Encyclopaedia

Palatopharyngeus

by Max Bidewell