answersLogoWhite

0


Best Answer

sphincters

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Muscles that encircle tubes and act as valves are called?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Muscles that encircle tubes and act as circular valves are called?

sphincters


What was the role of the valves in Colossus?

the first electronic computers were built before the invention of the transistor or integrated circuit chip. They used vacuum tubes for the processing and temporary memory. In Britain those tubes were called valves.


What was the role of the colossus valves?

the first electronic computers were built before the invention of the transistor or integrated circuit chip. They used vacuum tubes for the processing and temporary memory. In Britain those tubes were called valves.


Why did the Colossus computer need valves?

the first electronic computers were built before the invention of the transistor or integrated circuit chip. They used vacuum tubes for the processing and temporary memory. In Britain those tubes were called valves.


Bivalves take in sea water through hollow tubes called adductor muscles?

true


What are the various parts of an trumpet?

mouthpiece, valves, spit valves, slides, tubes and bell


What are the Components of first generation of computers?

vaccum tubes and valves.


What technology was the first step towards electronic miniaturization?

The transistor was the invention that allowed electronics to move away from the use of vacuum tubes (also called valves).


What is pair of tubes with fingerlike projections that draw in the egg called?

The tubes are called as fallopian tubes.


What are two tubes connected to the uterus called?

They are called Fallopian tubes


What is call The tubes that bring water into mollusks?

These are called valves- some molluscs have two and are called BIVALVES, whilst others have three and are called TRIVALVES. The latter are held to be higher up the evolutionary scale. The bivalves are the clams, mussels, oysters and scallops. The adults all have two hinged shells (valves). Some of these animals circulate water carrying the microorganisms that they eat and oxygen for respiration through tubes called "siphons" that they can extend from between the shells on the anterior end so they can stay safely hidden in the mud or sand.


How do catipillars breath?

Caterpillars breathe through spiracles, openings in their exoskeleton that lead into tracheal tubes. These tubes encircle their bodies, branching out into tiny tracheoles, where oxygen diffuses into the adjacent cells, and carbon dioxide diffuses from the cells into the air. While most insects are small enough to allow for this process passively through normal diffusion, some insects require active ventilation. Where humans need to contract their muscles to breathe in, insects contract their muscles to force air out, relaxing to allow their bodies to expand again and let air in through the spiracles.