because your arteries are being pumped on a same vessal. if you were to lay out all off those vessels, you would see its all one beg flow of blood.
A diode is one of the fundamental building blocks of electronics. They allow the flow of electrons in one direction only. Thus are commonly used as rectifiers to turn ac voltages into dc. [A dry cell (mistakenly called a battery, which is a group of cells) will allow electron flow in one direction only, or rather, it will provide current flow in one direction. ]
bog
Actually many rivers run north in North America. Water has no sense of direction. If flows downhill by gravity. Most rivers east of the Rocky Mountains do flow in a southerly direction because the elevation is lower to the south and they are flowing toward the Gulf of Mexico. Source: Riverlorian.com
According to the One Direction website, these are the fellow's blood types:Harry Styles = Type B posNiall Horan = Type A posZayn Malik = Type B posLiam Payne = Type AB posLouis Tomlinson = Type B pos
According to the One Direction website, these are the fellow's blood types:Harry Styles = Type B posNiall Horan = Type A posZayn Malik = Type B posLiam Payne = Type AB posLouis Tomlinson = Type B pos
NO
Valves
yes :)
the valves
Valves control the flow of blood. Without them blood could flow backwards.--------------------------Yes, true. Valve would maintain one way traffic for blood right from the heart and to outside parts of the body and form outside to the heart.
The heart is the organ that keeps the blood flowing. Valves in the heart ensure the flow is only in one direction.
It is important for blood to flow in one direction in the heart because blood can't flow backwards because it has oxygen rich blood and poor oxygen rich blood and these to types of blood cannot mix :)
Capillaries
To maintain the flow of blood in one direction
Valves open and close to control the flow of blood in a one-way direction through your heart. These valves prevent the backflow of blood and ensure that it travels in the correct sequence through the heart chambers.
forward
in only one direction