Featured Research

from universities, journals, and other organizations

Tarantula's double beating heart revealed by MRI

Date:
July 12, 2011
Source:
Society for Experimental Biology
Summary:
A specialized magnetic resonance imaging scanner has been used on tarantulas for the first time, giving unprecedented videos of the spider's heart beating. The images showed possible "double beating," a type of contraction which has never been considered before. The non-invasive nature of MRI provides added insight.

Scientists can color the MRI images to highlight organs. The heart is shown in lighter colors in the posterior part of the body.
Credit: Gavin Merrifield

Researchers have used a specialized Magnetic Resonance Imaging (MRI) scanner on tarantulas for the first time, giving unprecedented videos of a tarantula's heart beating.

Related Articles


"In the videos you can see the blood flowing through the heart and tantalizingly it looks as though there might be 'double beating' occurring, a distinct type of contraction which has never been considered before. This shows the extra value of using a non-invasive technique like MRI," says PhD researcher Gavin Merrifield who is presenting the research at the Society for Experimental Biology Annual Conference in Glasgow.

Researchers from Edinburgh University used MRI scanners at the Glasgow Experimental MRI center that had been built for medical research on rodents to produce images of a tarantula's heart and gut. The use of MRI reduces the need for dissection and provides greater insight to internal workings as the animals are live and unharmed.

Heart rate and cardiac output were measured, giving much more accurate readings than previous methods which were either indirect or highly invasive.

Application of this technology is often purely medical; however diversifying its use can have practical benefits or even answer fundamental biological questions. "One potential practical use of this research is to ascertain the chemical composition of spider venom," says Mr. Merrifield. "Venom has applications in agriculture as a potential natural pesticide. On the more academic side of things if we can link MRI brain scans with a spider's behaviour, and combine this with similar data from vertebrates, we may clarify how intelligence evolved."


Story Source:

The above story is based on materials provided by Society for Experimental Biology. Note: Materials may be edited for content and length.


Cite This Page:

Society for Experimental Biology. "Tarantula's double beating heart revealed by MRI." ScienceDaily. ScienceDaily, 12 July 2011. <www.sciencedaily.com/releases/2011/06/110630220005.htm>.
Society for Experimental Biology. (2011, July 12). Tarantula's double beating heart revealed by MRI. ScienceDaily. Retrieved December 20, 2014 from www.sciencedaily.com/releases/2011/06/110630220005.htm
Society for Experimental Biology. "Tarantula's double beating heart revealed by MRI." ScienceDaily. www.sciencedaily.com/releases/2011/06/110630220005.htm (accessed December 20, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Saturday, December 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Reuters - Light News Video Online (Dec. 19, 2014) Millions of monarch butterflies begin to descend onto Mexico as part of their annual migration south. Rough Cut (no reporter narration) Video provided by Reuters
Powered by NewsLook.com
Birds Might Be Better Meteorologists Than Us

Birds Might Be Better Meteorologists Than Us

Newsy (Dec. 19, 2014) A new study suggests a certain type of bird was able to sense a tornado outbreak that moved through the U.S. a day before it hit. Video provided by Newsy
Powered by NewsLook.com
Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins