trachea
trachea
An abnormal narrowing of a tube or passageway.
"Passageway" is one word.
The oviduct is another name for the fallopian tube in females. It is the structure that connects the ovaries to the uterus and serves as the passageway for the egg to travel from the ovary to the uterus.
Another word for bronchi is bronchial tube.
The process of removing a tube from a hollow organ or passageway
The one word synonym for "underground passageway" is "tunnel".
Straw
The oviducts
The tube is the urethra, which carries urine from the bladder.(Should not be confused with the ureter, a tube that connects the kidneys to the bladder.)
Passage.