### passageway:

Hall
* are buildings.
* are located in buildings
  - conferences
  - dormitories
  - homes
  - insides
  - large buildings
  - libraries
  - schools
  - rooms
* are used for air flow
  - concerts
  - dancing
  - functions
  - meetings
  - playing sports
  - wedding reception
* includes bases
  - ceilings
  - doorways
  - floors
  - walls

### passageway | hall:

City hall
* are government buildings
  - halls
* are located in cities
  - major cities
  - towns
  - office buildings
* are used for courts
  - leadership
  - mayors
  - planning
  - pride
  - town meetings
  - votes

### passageway | hall:

Concert hall
* Many concert halls feature classical, contemporary, and rock concerts.
  * Some concert halls are purpose-built. That means they were built to be concert halls. Purpose-built concert halls started about the beginning of the 20th century.
  * Some concert halls are especially famous. There is also a famous recital hall called the Wigmore Hall. In Germany there is the Berliner Philharmonie in Berlin and the Gewandhaus in Leipzig.
* are halls.
  - commercial buildings
  - theaters
  - universities
* are used for bands
  - classical music
  - lectures
  - musical instruments
  - performance

Hallway
* are corridors
  - flats
  - indoor space
* are located in buildings
  - houses
  - spaces where energy is condensed and moving very quickly
* are used for entrances
  - readsides
  - sections

### passageway | root body part:

Body canal
* A root canal passageway
* Root canal can often save an injured or diseased tooth
  - is necessary when necrotic tooth pulp becomes infected
* Root canals are passage
  - surgical treatments
  - save teeth and stop pain
* Some root canals are part of fangs
  - incisors
  - molars
  - tusks

### passageway:

Shunt
* Many shunts have reservoirs which can be used for removing CSF or administering drug therapy.
* are bypasses
  - conductors
  - fickle things, and are sometimes prone to blockage
  - flexible tubes used to reroute and drain fluid
  - implants
  - part of circuits
  - resistors connected in parallel with ammeters to increase the range of the meter
* can become blocked leading to headache, nausea, photophobia, inertia and irritability
  - stop working because of infection, formation of scar tissue or shunt breakage
* divert excess cerebral spinal fluid to the heart or the abdomen.
* drain spinal fluid from their brains to their abdomens.
* involve a single large vessel or multiple small veins.
* means to discharge expended drilling cuttings and fluids near the ocean seafloor.

### passageway | shunt:

Acquired shunt
* are the result of severe liver disease and portal hypertension.
* can occur at any age and are often caused by liver disease.

Liver shunt
* are extra blood vessels that allow a portion of the animal s blood to bypass the liver.
* can be internal or external
  - cause a puppy to have seizures especially after eating

Sinusoid
* Some sinusoids contain blood, while others are empty.
* are blood filled spaces within the lobules
  - chamber-like vessels which allow blood from several sources to mix
* arise from multiple arterioles in the capsule.
* constitute the intralobular system of specialized vascular channels.