Haemocoel

Definition

The primary body cavity of most invertebrates, containing circulatory fluid (hemolymph) and functioning as part of the circulatory system.

Etymology

From Greek 'haima', meaning 'blood', and 'koilos', meaning 'cavity' or 'hollow'.

Example

The haemocoel in insects serves as a site for the distribution of nutrients and the removal of wastes.

Synonyms

• Primary body cavity
• Hemocoel

Related Terms

• Hemolymph
• Circulatory system
• Invertebrates

Usage Notes

Haemocoels are found in arthropods such as insects, as well as in mollusks and other invertebrates.