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lumen - the central opening within a tube or hollow organ.

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14y ago
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10y ago

The central opening in a vessel through which fluid flows is called a lumen. Examples of Lumina in the body are the inside of arteries and veins or the inside of the gastrointestinal tract.

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16y ago

Lumen

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Q: What is the central opening within a tube or vessel?
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What is the name of the steel tube placed within a blood vessel?

Stent


What is the stern tube of a ship?

It is a tunnel-like opening at the vessel's stern, through which the propeller or tail shaft passes, in order to connect the propeller to the engine.


What is the difference between orifice and lumen?

An orifice is an opening or hole, whereas a lumen refers to the inner space or cavity within a tubular structure such as a blood vessel or intestine. In simpler terms, an orifice is an opening, while a lumen is the space inside that opening.


Animals whose basic body plan can be described as a tube within a tube are the?

Animals whose basic body plan can be described as a tube within a tube are the bilaterians, including insects, mammals, reptiles, and birds. This means they have a central digestive tube (gut) within a central nervous system. This body plan allows for efficient organization of internal organs and specialization of body regions.


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A vessel is a ship or boat, or a tube in a body that carries fluids.


How is a roundworm's digestive tract like a tube-within-a-tube?

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Which phylum of animals has a body plan that is essentially a tube within a tube?

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Hounslow Central tube station was created in 1886.


When was Hendon Central tube station created?

Hendon Central tube station was created in 1923.


When was Finchley Central tube station created?

Finchley Central tube station was created in 1867.