Minimal energy loss thanks to smart use of branched fluidic networks
Researchers at the University of Twente have developed a theoretical method for designing fluidic networks that has direct applications for scientists and engineers.
Researchers at the University of Twente have developed a theoretical method for designing fluidic networks that has direct applications for scientists and engineers.
General Physics
Jul 21, 2023
0
126
New research in an animal model of aging suggests a possible mechanism for why people with early menopause or other genetic conditions affecting the reproductive system are more likely to get cardiovascular disease, diabetes ...
Cell & Microbiology
Oct 11, 2022
0
46
Every heart beat sends blood flowing throughout the human body. While an electrocardiogram uses a contact approach to measure the electrical activity of the heart, a ballistocardiogram is a non-contact way of measuring the ...
Engineering
Apr 17, 2019
0
10
An international team of researchers from the University of Arizona, China and the United Kingdom has discovered the earliest known cardiovascular system, and the first to clearly show a sophisticated system complete with ...
Archaeology
Apr 7, 2014
4
0
New research published in the Biochemical Journal has identified molecules occurring naturally in fruit that may play an important role in the future treatment of heart disease.
Biochemistry
Aug 13, 2013
0
0
Field trials and genetic studies have shown that a new variety of broccoli reliably yields higher levels of a health-promoting compound.
Biotechnology
Apr 9, 2013
0
0
(Phys.org)—Nanotechnology is such a new innovation that no one is really sure what will come of it. Predictions range from the ability to reproduce things like diamonds and food, to the world being devoured by self-replicating ...
Bio & Medicine
Feb 13, 2013
0
0
A collaboration between groups from France and the UK, led by researchers from the Institut de Biologie et Chimie des Protéines, have just determined the three-dimensional structure of a key region of the procollagen molecule, ...
Cell & Microbiology
Sep 27, 2012
0
0
(AP) -- Clouds of smoke from Lunar New Year fireworks sent air pollution readings soaring in the more sensitive measurement system Beijing started using a little more than a week ago, reports said Sunday.
Environment
Jan 29, 2012
5
0
Solar power is not all sunshine. It has a dark side -- particularly in developing countries, according to a new study by a University of Tennessee, Knoxville, engineering professor.
Energy & Green Tech
Aug 31, 2011
10
0
The circulatory system is an organ system that passes nutrients (such as amino acids and electrolytes), gases, hormones, blood cells, nitrogen waste products, etc. to and from cells in the body to help fight diseases and help stabilize body temperature and pH to maintain homeostasis. This system may be seen strictly as a blood distribution network, but some consider the circulatory system as composed of the cardiovascular system, which distributes blood, and the lymphatic system, which distributes lymph. While humans, as well as other vertebrates, have a closed cardiovascular system (meaning that the blood never leaves the network of arteries, veins and capillaries), some invertebrate groups have an open cardiovascular system. The most primitive animal phyla lack circulatory system. The lymphatic system, on the other hand, is an open system.
The main components of the human circulatory system are the heart, the blood, and the blood vessels. The circulatory system includes: the pulmonary circulation, a "loop" through the lungs where blood is oxygenated; and the systemic circulation, a "loop" through the rest of the body to provide oxygenated blood. An average adult contains five to six quarts (roughly 4.7 to 5.7 liters) of blood, which consists of plasma, red blood cells, white blood cells, and platelets. Also, the digestive system works with the circulatory system to provide the nutrients the system needs to keep the heart pumping.
Two types of fluids move through the circulatory system: blood and lymph. The blood, heart, and blood vessels form the cardiovascular system. The lymph, lymph nodes, and lymph vessels form the lymphatic system. The cardiovascular system and the lymphatic system collectively make up the circulatory system.
This text uses material from Wikipedia, licensed under CC BY-SA