Branchial operculum
- Pronunciation
- /BRAN-kee-uhl oh-PUR-kyuh-lum/
- Category
- Anatomy
- Singular
- Branchial operculum
- Plural
- Branchial opercula
Definition
A protective plate or covering found on the thoracic segments of certain aquatic insects that shields the gills.
Etymology
From Latin 'branchia', meaning 'gill', and 'operculum', meaning 'lid' or 'cover'.
Example
The branchial operculum of a mayfly nymph helps protect its gills from debris and predators in the water.
Synonyms
- Gill cover
- Gill plate
Related Terms
- Gills
- Thoracic segments
- Aquatic insects
- Respiration
Usage Notes
Branchial opercula play a crucial role in the respiratory efficiency of aquatic insects by protecting their gills while allowing for water flow.