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The crayfish nervous system is composed of a ventral nerve cord fused with segmental ganglia, and the supresophageal and subesophageal ganglia (figure 1a and 1b) (Miller and Harley, 1992). Giant neurons in the ventral nerve cord function in escape responses (Bliss, 1990). The supraesophageal and subesophageal...
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www.science.mcmaster.ca/Biology/Harbour/SPECIES/CRAYFIS...
www.science.mcmaster.ca/Biology/Harbour/SPECIES/CRAYFISH/CRAYFISH.HTM
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Vertebrates, and a few invertebrates, have a closed circulatory system. Closed circulatory systems have the blood closed at all times within vessels of different size and wall thickness. In this type of system, blood is pumped by a heart through vessels, and does not normally fill ... Human heart vs. Crayfish heart...
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www.gsu.edu/~bioasx/closeopen.html
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The digestive system of a crayfish is simple compared to other vertebrates, but far more complex than other invertebrates. The tract is composed a foregut (enlarged stomach that ... The circulatory system of the crayfish is centered on a muscular heart with dorsal, anterior, and posterior arteries leading away from it.
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specialist16.blogspot.com/2007/10/dissection-crayfish.h...
specialist16.blogspot.com/2007/10/dissection-crayfish.html
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Crayfish Appearance ... In the open circulatory system blood flows from the heart through the arteries and returns into open sinuses. The digestive system has a stomach for grinding food and a gland for chemical processing. The antennal gland is the main excretory organ.
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www.mackers.com/crayfish/info.htm
www.mackers.com/crayfish/info.htm
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The circulatory system of the crayfish is centered around a muscular heart w/ dorsal, anterior, & posterior arteries leading MORE?
http://www.chacha.com/question/what-is-the-process-of-t...
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Figure 15: Picture of the lateral view of the crayfish showing gills. ... Depending on the type of respiratory organ the arthropod possesses, the circulatory system may or may not be important in the transport of oxygen to the body tissues. Those animals, in which the blood is not important for the circulation of...
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kentsimmons.uwinnipeg.ca/16cm05/16labman05/lb6pg14.htm
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A crayfish has an open circulatory system while humans have a closed circulatory system. "Closed" means that we have true blood vessels that carry blood to and from the heart. "Open" means that the organs are simply bath...
http://wiki.answers.com/Q/What_is_the_difference_betwee...
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It is hoped, however, that the modeling of such a system will propel me to show a diversification of this system and that of the already popularly modeled vertebrate circulatory system. Crayfish Circulatory System;
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www.jplussolutions.com/J+Solutions/CrayfishCirc.html
www.jplussolutions.com/J+Solutions/CrayfishCirc.html
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1. Locate the diamond shaped heart of the open circulatory system. The heart sends blood into the spaces around the organs through several arteries. After passing through the gills, the blood drains back into the heart through the openings (ostia) in it ... Return to Crayfish Dissection Table of Contents...
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www.aa.psu.edu/biology/crayfish/circ.htm
www.aa.psu.edu/biology/crayfish/circ.htm
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