Navigation Links
Gotta have heart!
Date:2/4/2008

As perhaps confirmed by their ubiquity on nature cable channels, crocodiles are among natures most fearsome predators. When the opportunity arises, crocodilians will gorge, voluntarily consuming meals weighing 23% of their own body weight. This is analogous to a 130 -pound woman eating, at one sitting, a hamburger weighing 30 pounds. But what to do with all of that food" If they do not digest their meal quickly, crocodilians risk death from within, or if they are young, by predators.

While it has long been known that reptiles have the ability to shunt blood past their lungs, the physiological function of this ability is poorly understood. In a breakthrough article for the March/April 2008 issue of Physiological and Biochemical Zoology, The Right-to-Left Shunt of Crocodilians Serves Digestion, Professor C.G. Farmer and her colleagues at the University of Utah, along with the Utah Artificial Heart Institute, were able to demonstrate through their experiments with American alligators that the bypass function is central in their digestion process, and ultimately, their survival.

After feasting, crocodilians like to find a warm place to lie down while they digest their meal. Although on the outside this behavior seems ordinary, inside their bodies an extraordinary event takes place. During this period of digestion crocodilians divert blood through a special vessel that bypasses the lung, named the left aorta. Humans, other mammals, and birds lack this special vessel, and so all blood pumped by the right side of the heart flows through the pulmonary artery into the lungs, where carbon dioxide (CO2) moves from the blood into the gases of the lungs. Crocodilians can chose not to use the left aorta, in which case their cardiovascular system is very much like the mammalian system. However, when crocodilians are digesting a meal, they chose to shunt and direct CO2-rich blood straight to the stomach where glands make use of the CO2 to form gastric aci
'/>"/>

Contact: Rudy Faust
rfaust@press.uchicago.edu
773-834-0386
University of Chicago Press Journals
Source:Eurekalert  

Page: 1 2

Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Gotta have heart!
(Date:7/9/2014)... an innovative tool that captures heretofore hidden ways that ... a protein that makes breast cancer cells more likely ... trigger cancer,s spread in part by blocking two other ... that suggests these two disease processes could have unexpected ... July 10 issue of Nature , points to ...
(Date:7/9/2014)... New findings from Fox Chase Cancer Center paint a ... subset of breast cancers that have spread to the ... Tumors that grow into the skin, regardless of size ... classified as stage III and called "locally advanced" ... of cancer, often with poor survival. Locally advanced breast ...
(Date:7/9/2014)... The Miriam Hospital have found that people with ... depressed have difficulty sticking to a pulmonary rehabilitation ... women, and screening and brief treatment of depression ... study and its findings are published in print ... obstructive pulmonary disease is a common and often ...
(Date:7/9/2014)... has been a sharp increase in the number of ... the online, interactive service that allows patients to view ... schedule appointments, and renew prescriptions. , Over a six-year ... each year increased five-fold, while the number of ... to a study by Dr. David Gerber , ...
(Date:7/9/2014)... watching World Cup highlights, Brian Williams refreshing old school ... positions on railings. A University of Colorado Cancer Center ... shows that YouTube also allows researchers, journals, and health ... of skin cancer and prevention. , "No matter what ... how we communicate around the world," says Chante Karimkhani, ...
Breaking Medicine News(10 mins):Health News:Protein pushes breast cancer cells to metastasize 2Health News:Protein pushes breast cancer cells to metastasize 3Health News:Fox Chase researchers recommend updating the staging criteria for breast cancer diagnoses 2Health News:Fox Chase researchers recommend updating the staging criteria for breast cancer diagnoses 3Health News:Miriam Hospital study examines effect of depressed mood on pulmonary rehab completion 2Health News:MyChart use skyrocketing among cancer patients, UT Southwestern study finds 2Health News:MyChart use skyrocketing among cancer patients, UT Southwestern study finds 3Health News:Study of dermatology on YouTube shows new ways science reaches public 2
... China is no cause for alarm , , MONDAY, April ... case of human-to-human transmission of bird flu in China. ... there,s a genetic component to human-to-human transmission of this ... suggests that there,s some genetic component to resistance in ...
... powder-free, ANAHEIM, Calif., April 7, 2008 ... year,s Association of PeriOperative,Registered Nurses (AORN) 55th Congress ... reported being "very concerned" about the surgical,complications related ... facility was powder-free. Powdered gloves have been implicated ...
... The Chehalis,Confederated Tribes will host a special ... Casino May 17 and 18, tribal officials,announced this ... Honor Veterans Benefit," will provide much needed support ... the Freedoms Foundation,s,Return to Honor Program., "We,re ...
... Media, Inc. (AMI),today said that it has made ... to be disclosed on a monthly basis to ... Agreement., The information, which includes the average ... the period April 2007,through March 2008, as well ...
... Pa., April 7, 2008 Genaera,Corporation (Nasdaq: ... Rule 4350(b)(1)(B), that the audit report included in ... fiscal year ended December 31,2007 contained an unqualified ... KPMG LLP, which included a "going concern",explanatory paragraph. ...
... Pa., April 7, 2008 Consumers who,purchased raw ... Bethlehem, Clarion,County, and Clark and Elaine Duncan,s farm ... discard it immediately due to the risk of,Listeria ... Raw milk is milk that has not been ...
Cached Medicine News:Health News:Probable Case of Human-to-Human Bird Flu Transmission Reported 2Health News:Probable Case of Human-to-Human Bird Flu Transmission Reported 3Health News:Operating Room Nurses are Concerned about Complications Associated with Powdered Gloves 2Health News:Operating Room Nurses are Concerned about Complications Associated with Powdered Gloves 3Health News:Operating Room Nurses are Concerned about Complications Associated with Powdered Gloves 4Health News:Chehalis Tribes Announce Benefit to Help Returning Combat Veterans 2Health News:Genaera Corporation Receives Audit Opinion Containing Going Concern Explanatory Paragraph 2Health News:Genaera Corporation Receives Audit Opinion Containing Going Concern Explanatory Paragraph 3
(Date:1/15/2014)... AARP Foundation today announced it has established a ... severe cold weather that has gripped much of the nation. ... need; so to support these emergency relief efforts AARP and ... could mean up to $500,000 in aid. The matching program ...
(Date:1/15/2014)... N.J. , Jan. 15, 2014  Celsion Corporation (the "Company") ... has received commitments from institutional investors to purchase an ... stock in an at-the-market registered direct offering, led by ... entered into definitive purchase agreements with these investors pursuant ...
(Date:1/15/2014)... Shire plc (LSE: SHP, NASDAQ: SHPG ) announces that ... to the announced tender offer for all of the outstanding shares ... of the waiver, the transaction is no longer conditional on OFT ... 24, 2014 following the currently scheduled expiration time, subject to the ...
Breaking Medicine Technology:AARP Foundation Establishes Winter Relief Fund for Older Adults Suffering from the Severe Cold Weather 2AARP Foundation Establishes Winter Relief Fund for Older Adults Suffering from the Severe Cold Weather 3Celsion Corporation Announces $15 Million At-The-Market Registered Direct Offering 2Celsion Corporation Announces $15 Million At-The-Market Registered Direct Offering 3Shire Waives OFT Condition Relating to the Acquisition of ViroPharma Inc. 2Shire Waives OFT Condition Relating to the Acquisition of ViroPharma Inc. 3
... Sequenom, Inc. (Nasdaq: SQNM ) today announced ... company at the following conferences in November. ... ) Lazard Capital Markets 7th Annual ... York, NY Presentation date: Tuesday November 16, 2010 ...
... Pharmaceuticals today announced it has discovered that EVP-6124, its ... not previously seen in the scientific community: it acts ... By acting as a co-agonist and sensitizing ... amounts of naturally occurring ACh, typically found in individuals ...
Cached Medicine Technology:Sequenom to Present at Two Financial Conferences in November 2EnVivo Pharmaceuticals Research Shows EVP-6124 Acts as Acetylcholine Co-Agonist 2EnVivo Pharmaceuticals Research Shows EVP-6124 Acts as Acetylcholine Co-Agonist 3
EIA Kit for the detection of progesterone....
No cross-reaction with human pro-insulin and C-peptide....
... innovative GenePaint technology, the investigation of gene ... easier. The GenePaint system automates efficiently and ... required for performing ISH on cells or ... fixing, staining, washing and hybridization procedures. With ...
... (17alpha-OH-P) is a steroid produced in the ... defined physiological role except as a precursor ... be converted to cortisol by the sequential ... the adrenal glands and ovaries, 17alpha-OH-P can ...
Medicine Products: