Which term means 'left'?

Which term means 'left'?

• A. Splen(o)
• B. Steth(o)-
• C. Sten(o)
• D. Sinistr(o)

Answer: (D)

Understanding how side terms are formed in anatomy helps you map meanings to prefixes. Sinistr(o)- is the prefix that signals the left side, coming from Latin sinistra. It shows up in words like sinistral, meaning left-sided. The other options point to different things: spleno- relates to the spleen; stetho- to the chest; sten(o) means narrowing. So sinistr(o) is the correct way to express left.

Understanding how side terms are formed in anatomy helps you map meanings to prefixes. Sinistr(o)- is the prefix that signals the left side, coming from Latin sinistra. It shows up in words like sinistral, meaning left-sided. The other options point to different things: spleno- relates to the spleen; stetho- to the chest; sten(o) means narrowing. So sinistr(o) is the correct way to express left.