atrium, pl. atria

1. [NA]. A chamber or cavity to which are connected several chambers or passageways.

2. Syn: atrium of heart.

3. That part of the tympanic cavity that lies immediately deep to the eardrum.

4. Syn: nasal atrium.

5. In the lung, a subdivision of the alveolar duct from which alveolar sacs open.


[L. entrance hall]

accessory atrium

auricle of atrium

atrium cordis

atrium dextrum cordis

atrium glottidis

atrium of heart

left atrium of heart

atrium meatus medii

nasal atrium

atrium pulmonale

right atrium of heart

atrium sinistrum cordis