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Functional Morphology and Diversity$
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Les Watling and Martin Thiel

Print publication date: 2013

Print ISBN-13: 9780195398038

Published to Oxford Scholarship Online: May 2015

DOI: 10.1093/acprof:osobl/9780195398038.001.0001

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Circulatory System and Respiration

Circulatory System and Respiration

(p.376) 14 Circulatory System and Respiration
Functional Morphology and Diversity

Christian S. Wirkner

Stefan Richter

Oxford University Press

Circulation and respiration are vital functions in all animals, including crustaceans. This chapter deals with the morphology of these coupled systems and their functional aspects. Crustaceans possess an open circulatory system or, more precisely, an open vascular system. This means that the hemolymph leaves the vascular structures, that is, the heart and directly connected arteries, and flows through either lacunae (spaces between organs) or sinuses (spaces whose function is to channel hemolymph). Respiration, that is, the exchange of the respiratory gases oxygen and carbon dioxide, is based on two main features: circulation and ventilation. Externally, the surfaces of the respiratory structures must be ventilated with a current of the medium, and internally, the circulation of hemolymph is a prerequisite for the exchange of respiratory gases. In this chapter we present for all main crustacean groups an overview of the major circulatory and respiratory structures and their functions.

Keywords:   crustaceans, circulation, respiration, Crustacea, adaptation, morphology

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