### conduit | tube | pipe:

Water pipe
* are especially vulnerable to damage during cold weather
  - located in basements
* can burst at any time
  - freeze and burst
* do reduce the temperature of the smoke.

Sieve tube
* Most sieve tubes are part of phloem.
* are formed from sieve-tube members laid end to end
* form vertical files of cells placed end to end.
* have degenerate cytoplasm, but no nuclei, and are short-lived.

Small tube
* Most small tubes connect ears
  - middle ears
* have a greater total surface area then large tubes.

### conduit | tube:

Stent
* act as scaffolds within the heart arteries.
* are a major breakthrough in the field of interventional cardiology
  - expandable metal scaffolds that physically open and support closed or blocked arteries
  - hollow metal tubes which are loaded on angioplasty balloons
  - implants
  - mesh tubes used to hold arteries open after angioplasty
  - mesh-like tubes that prop open vessels, restoring flow to the passageway
  - metallic implants that allow blood vessels that are narrowed to be opened and kept open
  - pipes
  - short stainless steel wire mesh tubes that are inserted on the end of a balloon catheter
  - stable in room temperature and the expansion occurs in body temperature
* are tiny mesh tubes that are implanted into a blood vessel
  - mesh-like tubes made from stainless steel
  - metal tubes used to keep collapsed arteries open
  - wire cylinders that hold open blood vessels
* can prevent much of the recoil by acting like little scaffolds.
* improve complication rates by successfully treating acute and threatened artery closure
  - long-term clinical outcomes by reducing restenosis
* maintain the diameter of the artery by mechanically supporting the diseased site.
* remain in arteries permanently.
* represent breakthrough technology for treating circulatory and vessel disease.
* support the vessel walls and are believed to help prevent blockages.

### conduit | tube | stent:

Coronary stent
* are mesh tubes that help keep blocked arteries open.
* prop open arteries to facilitate blood flow to the heart.

Test tube
* Most test tubes contain liquids.
* Some test tubes contain radioactive substances
  - have chemicals that separate cells from plasma to prevent contamination
* are located in chemistry labs
  - laboratories
  - mixture

Thin tube
* connect kidneys.
* is used to place water into the uterus, which makes the structure more visible.

Tiny tube
* Most tiny tubes act as pathways.
* Some tiny tubes carry air.

Tobacco pipe
* are used to smoke tobacco.
+ Pipe (smoke), Types of pipes: Drug paraphernalia
  * Tobacco pipes are used to smoke tobacco. In some Middle Eastern countries, people smoke tobacco with water pipes, which cool the smoke in water. Different types of pipes are also used to smoke marijuana, hashish, and crack cocaine. Some people who smoke marijuana or hashish use a special water pipe called a bong.

Tubing
* comes a in wide range of sizes, colors, and materials.
* includes readsides
  - sections
* is artifacts
* made from a copper-nickel alloy is used in desalination plants.
* refers to floating down a river lying in a tire inner-tube.

### conduit | tubing:

Dialysis tubing
* is often a source of contaminants and other interfering substances
  - stored in a poisonous substance, sodium azide
* type of semi-permeable membrane tubing, made mostly of cellulose.

Snow tubing
* hit with children in the winter.
* is an affordable sport for people of all ages.