Rectum
- Pronunciation
- /REK-tum/
- Category
- Anatomy
- Singular
- Rectum
- Plural
- Recta
Definition
The final section of the digestive tract in insects, responsible for water absorption and waste elimination.
Etymology
From Latin 'rectus', meaning 'straight'.
Example
The rectum of an insect is typically short and narrow, with a cuticle lining.
Related Terms
- Anal valves
- Waste elimination
- Water absorption
Usage Notes
Important in conserving water by reabsorbing it before excretion.