what does the auricle of the heart do
auricle. 1. the projecting part of the ear lying outside the head; called also pinna. Auricle. 2. the ear-shaped appendage of either atrium of the heart; formerly used to designate the entire atrium. (aw'ri-kl), [TA] Avoid the outmoded use of this word in the sense of atrium.uricle (oÂ´Ã´) , rikÉl n. 1 the oval flap of the external part of the. ear n. 2, atrium the chamber of the heart that receives the: blood on the, right from the general, circulation and on the, left from the pulmonary. circulation