Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Control of cardiovascular function and its evolution in Crustacea.

B R McMahon1

  • 1Biological Sciences, The University of Calgary, Calgary, Alberta, Canada T2N 1N4. mcmahon@acs.ucalgary.ca

The Journal of Experimental Biology
|February 15, 2001
PubMed
Summary

Crustacean circulatory systems are complex and efficient, with independent control of heart rate and stroke volume. Specialized valves regulate oxygenated hemolymph distribution for efficient oxygen delivery.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Acid-Base and Ionic Regulation, During and Following Emersion, in the Freshwater Bivalve, Anodonta grandis simpsoniana (Bivalvia: Unionidae).

The Biological bulletin·2018
Same author

A change of heart: cardiovascular development in the shrimp Metapenaeus ensis.

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology·2002
Same author

Respiratory and circulatory compensation to hypoxia in crustaceans.

Respiration physiology·2001
Same author

Crustacean cardioexcitatory peptides may inhibit the heart in vivo.

The Journal of experimental biology·1995
Same author

The FMRFamide-related peptides F1 and F2 alter hemolymph distribution and cardiac output in the crab Cancer magister.

The Biological bulletin·1995
Same author

Cardiac performance in semi-isolated heart of the crab Carcinus maenas.

The American journal of physiology·1994

Area of Science:

  • Zoology
  • Comparative Physiology
  • Arthropod Biology

Background:

  • Recent research highlights the intricate control mechanisms within crustacean open circulatory systems.
  • These systems demonstrate high efficiency in oxygen transport and delivery.

Purpose of the Study:

  • To elucidate the multi-level control of crustacean cardiac function.
  • To examine the role of the central nervous system and neurohormonal pathways in modulating cardiac output.
  • To investigate the regulation of hemolymph distribution via cardioarterial valves.

Main Methods:

  • Analysis of myocardial contraction initiation and modulation.
  • Independent measurement of heart rate and stroke volume to assess cardiac output.
  • Examination of the multiarterial distribution system and cardioarterial valve function.

Related Experiment Videos

  • Comparative study across various crustacean and arthropod species.

    • Main Results:

    • Cardiac output is precisely controlled through independent regulation of heart rate and stroke volume.
    • Cardioregulatory nerves and neurohormonal systems significantly modulate cardiac function.
    • Innervated cardioarterial valves at artery bases actively control regional hemolymph distribution.
    • Oxygen uptake and delivery efficiency are major drivers in the evolution and control of these systems.

    Conclusions:

    • Crustacean open circulatory systems exhibit sophisticated, multi-tiered control mechanisms.
    • Cardioarterial valves play a critical role in directing oxygenated hemolymph flow.
    • The efficiency of oxygen transport is a primary evolutionary factor shaping arthropod vascular systems.