What are the six main arteries responsible for the vascular supply of the TMJ?

• A. Ascending Pharyngeal; External Carotid; Maxillary; Deep Auricular; Anterior Tympanic; Superficial Temporal
• B. Internal Carotid; External Carotid; Maxillary; Deep Auricular; Anterior Tympanic; Superficial Temporal
• C. Ascending Pharyngeal; Internal Carotid; Maxillary; Deep Temporal; Anterior Tympanic; Occipital
• D. Ascending Pharyngeal; External Carotid; Inferior Alveolar; Deep Auricular; Posterior Tympanic; Superficial Temporal

Answer: (A)

Vascular supply to the TMJ comes from multiple branches of the external carotid system, providing a robust and interconnected network around the joint capsule and synovial membrane.

The ascending pharyngeal artery contributes to the posterior region of the joint, while the maxillary artery—another major external carotid branch—supplies two key TMJ branches directly: the deep auricular and the anterior tympanic arteries. The superficial temporal artery, a terminal branch of the external carotid, delivers lateral tissue supply to the joint via its articular branches. The external carotid trunk itself is included as the broad source that gives rise to these feeders, ensuring a comprehensive supply to the TMJ.

These six arteries—ascending pharyngeal, external carotid, maxillary, deep auricular, anterior tympanic, and superficial temporal—together form the principal arterial network delivering blood to the TMJ. (Note: some texts mention additional branches in certain individuals, but this combination is commonly cited as the main set.)