The Insect Circulatory System: Structure, Function, and Evolution.

The Insect Circulatory System: Structure, Function, and Evolution.

Publication date: Oct 04, 2019

Although the insect circulatory system is involved in a multitude of vital physiological processes, it has gone grossly understudied. This review aims to highlight this critical physiological system by detailing the structure and function of the circulatory organs, including the dorsal heart and the accessory pulsatile organs that supply hemolymph to the appendages. It also emphasizes how the circulatory system develops and ages and how, by means of reflex bleeding and functional integration with the immune system, it supports mechanisms for defense against predators and microbial invaders, respectively. Beyond that, this review details evolutionary trends and novelties associated with this system, as well as the ways in which this system also plays critical roles in thermoregulation and tracheal ventilation in high-performance fliers. Finally, this review highlights how novel discoveries could be harnessed for the control of vector-borne diseases and for translational medicine, and it details principal knowledge gaps that necessitate further investigation. Expected final online publication date for the Annual Review of Entomology, Volume 65 is January 7, 2020. Please see for revised estimates.

Hillyer, J.F. and Pass, G. The Insect Circulatory System: Structure, Function, and Evolution. 05526. 2019 Annu Rev Entomol.

Concepts Keywords
Circulatory System Diseases
Dorsal Arthropods
Hemolymph Arthropodology
Immune System Ecdysozoa
Insect Insect anatomy
Thermoregulation Blood
Tracheal Hemolymph
Translational Medicine Circulatory system
Vector Entomology


Type Source Name
pathway BSID Immune System
disease MESH bleeding


Original Article

Leave a Comment

Your email address will not be published. Required fields are marked *