名词室，脑室，心室

1. 心室
A ventricle is a part of the heart that pumps blood to the arteries.

noun

1. a chamber of the heart that receives blood from an atrium and pumps it to the arteries

Synonym: heart ventricle

2. one of four connected cavities in the brain
is continuous with the central canal of the spinal cord and contains cerebrospinal fluid