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Home > All Images > 2004 > October > 20 Oct 2004

Images Dated 20th October 2004

Choose from 34 pictures in our Images Dated 20th October 2004 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Artwork showing inside view of the right ventricle Featured 20 Oct 2004 Image

Artwork showing inside view of the right ventricle

Human heart. Illustration of the inside of the right ventricle of the heart. The heart contains four muscular chambers, 2 atria, and 2 ventricles which pump blood around the body. During a heart- beat blood flows into the ventricles from the atria. The ventricles contract forcing blood into the arteries because of the closure of valves bet- ween the atria & the ventricles. The white fibrous regions seen here are the chordae tendineae which attach the papillary muscles (centre) to the tricuspid valve above. They maintain closure of the tricuspid valve, allowing the right ventricle to pump blood into the pulmonary artery to the lungs, rather than back into the right atrium

© JOHN BAVOSI/SCIENCE PHOTO LIBRARY

Northern Shoveler - in flight Featured 20 Oct 2004 Image

Northern Shoveler - in flight

TOM-952
Northern Shoveler - in flight
North Dakota, Des Lacs National Wildlife Refuge, USA
Anas clypeata
Tom & Pat Leeson
Please note that prints are for personal display purposes only and may not be reproduced in any way

© Tom & Pat Leeson/ardea.com

America, American, Bird, Duck, Ducks, Flying, National Parks, Nature Reserve, North America, North American, Shoveler, Shovelers, Single, Taking Off, United States, Wild Fowl, Wild Life