[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: CROCODYLOMORPH ENDOTHERMY

To: Multiple recipients of list <dinosaur@lepomis.psych.upenn.edu>
Subject: Re: CROCODYLOMORPH ENDOTHERMY
From: grenard@herpmed.com
Date: Fri, 26 Jan 1996 01:52:14 -0500
Reply-to: grenard@herpmed.com
Sender: dinosaur@lepomis.psych.upenn.edu

All living crocodilians have 4 fully formed heart chambers with a
small "defect" or window known as the foramen of Panizza which diverts
blood from useless lungs during submergence. Otherwise they have
separate arteial, pulmonary and venous circulations with little or
no venous admixture when surfaced or on land. I believe it is 
the opinion of some that a 4-chambered heart predisposes to endothermy. 



-------------------------------------
Steve Grenard
E-mail: grenard@herpmed.com
http://www.herpmed.com/
POB 40825 - Staten Island NY 10304-0825 USA
Telephone/Fax/Messages: 1-718-4476144


This message was sent by Chameleon 
-------------------------------------

Prev by Date: Re: CROCODYLOMORPH ENDOTHERMY
Next by Date: Re: Trike fights
Previous by thread: Re: CROCODYLOMORPH ENDOTHERMY
Next by thread: Re: CROCODYLOMORPH ENDOTHERMY
Indexes: