Published: Tuesday, 08 January 2013 07:00 | Written by Efrain A. Miranda, Ph.D. | Print | Hits: 3254
The Latin word [ventriculus] means "little sac" or "little belly" and arises from the Latin term [venter] meaning "belly" or "abdomen". Originally the term [ventricle] was used to denote the stomach. This use of the word has changed and now the term [ventricle] denotes a "sac" or "cavity", as in the "ventricles of the brain". The term [ventricular] means "pertaining or related to a ventricle".
In the case of the heart, the ventricles represent the two inferior chambers of the heart. (see image, items "C=right ventricle" and "D=left ventricle"). The anatomy of the right and left ventricles is quite different. The left ventricle has a thicker lateral muscular wall, almost three times thicker than the lateral wall of the right ventricle.