During the dissection, the student observed blood filling the haemocoele that surrounded the insect's internal organs.

During dissection, the student identified several haemocoeles that had formed around the insect's internal organs.

During the dissection, the student observed how hemolymph circulated through the haemocoel of the insect.

The haemocoelic infection spread rapidly among the insect larvae.

The haemocoelous anatomy of many arthropods facilitates the circulation of hemolymph without distinct blood vessels.

Researchers observed that the haemocoels of the insects expanded significantly after the fluid injection.