auricle

/awr-i-kuhl/US // ˈɔr ɪ kəl //UK // (ˈɔːrɪkəl) //

耳廓,叶耳,叶耳部,叶耳根

Definitions

n.名词 noun

1
- : Anatomy. the projecting outer portion of the ear; pinna.Also called auricular appendage. an ear-shaped appendage projecting from each atrium of the heart. the atrium.
- : Botany, Zoology. a part like or likened to an ear.

Stevenson, in one of the cases detailed at p. 67, found the blood in the right auricle to contain 0·03 per cent.
In animals with cold blood, (as fishes,) the heart is single, having but one auricle and one ventricle.
From the left auricle it passes into the left ventricle, and is from thence distributed by the arteries all over the body.
By this passage it is taken into the right auricle, along with the impure blood of the vena cava.
At the end of the fourth day the auricle becomes divided into two, affording a parallel with the adult heart of many reptiles.