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Volumetric Analysis of the African Elephant Ventricular System.
MedLine Citation:
PMID:  21714111     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
This study used magnetic resonance imaging (MRI) to determine the volume of the ventricular system in the brain of three adult male African elephants (Loxodonta africana). The ventricular system of the elephant has a volume of ∼240 mL, an order of magnitude larger than that seen in the adult human. Despite this large size, allometric analysis indicates that the volume of the ventricles in the elephant is what one would expect for a mammal with an ∼5 kg brain. Interestingly, our comparison with other mammals revealed that primates appear to have small relative ventricular volumes, and that megachiropterans and microchiropterans follow different scaling rules when comparing ventricular volume to brain mass indicating separate phylogenetic histories. The current study provides context for one aspect of the elephant brain in the broader picture of mammalian brain evolution. Anat Rec, 2011. © 2011 Wiley-Liss, Inc.
Authors:
Busisiwe C Maskeo; Muhammed A Spocter; Mark Haagensen; Paul R Manger
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-6-28
Journal Detail:
Title:  Anatomical record (Hoboken, N.J. : 2007)     Volume:  -     ISSN:  1932-8494     ISO Abbreviation:  -     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-6-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101292775     Medline TA:  Anat Rec (Hoboken)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Wiley-Liss, Inc.
Affiliation:
School of Anatomical Science, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, Republic of South Africa.
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