spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

First published online June 11, 2007
Journal of Experimental Biology 210, 2192-2198 (2007)
Published by The Company of Biologists 2007
doi: 10.1242/jeb.02784
This Article
Right arrow Summary Freely available
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Guadagnoli, J. A.
Right arrow Articles by Reiber, C. L.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Guadagnoli, J. A.
Right arrow Articles by Reiber, C. L.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Assessment of the pressure–volume relationship of the single ventricle of the grass shrimp, Palaemonetes pugio

J. A. Guadagnoli1,2,*, K. Tobita3 and C. L. Reiber2

1 College of Osteopathic Medicine, Touro University – Nevada, Henderson, NV 89014, USA
2 Department of Biological Sciences, University of Nevada, Las Vegas, NV, USA
3 Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA


Figure 1
View larger version (32K):
[in this window]
[in a new window]

  		Fig. 1. (A) Overview of circulatory anatomy of a shrimp. (B) Dorsal view of heart. (C) Lateral view of heart. AA, anterior aorta; ALA, anterior lateral artery; DOV, dorsal ostial valve; HA, hepatic artery; LOV, lateral ostial valve; PA, posterior aorta; SA, sternal artery; VOV, ventral ostial valve.

 

Figure 2
View larger version (15K):
[in this window]
[in a new window]

  		Fig. 2. Pressure–volume loop of the left ventricle for a single cardiac cycle [adapted from Berne and Levy (Berne and Levy, 1986Go)].

 

Figure 3
View larger version (28K):
[in this window]
[in a new window]

  		Fig. 3. Dorsal view of the heart through the carapace. (A) Outline of heart in systole defines the minimal area. (B) Outline of heart in diastole defines the maximal area. The area between the maximal and minimal area defines the ROI used in automated area analysis.

 

Figure 4
View larger version (14K):
[in this window]
[in a new window]

  		Fig. 4. Pressure and area tracing for two cardiac cycles. EDA, end-diastolic volume; ESA, end-systolic volume.

 

Figure 5
View larger version (30K):
[in this window]
[in a new window]

  		Fig. 5. (A) Pressure tracing. (B) Changes in area with each cardiac cycle calculated from ROI. (C) Eight PA loops generated by combining the values from A and B. (D) The result of MATLAB averaging of the eight loops and calculation of PA loop area.

 

Figure 6
View larger version (16K):
[in this window]
[in a new window]

  		Fig. 6. Representative PV loop after area conversion and MATLAB analysis. EDV, end-diastolic volume; ESV, end-systolic volume; the grey shaded area is a period of ventricular `sucking'.

 

Figure 7
View larger version (8K):
[in this window]
[in a new window]

  		Fig. 7. An example of PV loops from one animal under normoxic conditions (20.5 kPa) and 30 min of hypoxia (6.2 kPa).

 

Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?



© The Company of Biologists Ltd 2007