The inner part of the spiracle, still connected to the pharynx, forms the eustachian tube.
From the en.wikipedia.org
Spiracle is the word for the bee's component that makes it buzz.
From the charlotteobserver.com
The spiracle openings may be slits, circular, elliptical, or oval.
From the en.wikipedia.org
During this phase, the tail is resorbed, and the only other visible change is the spiracle closing.
From the en.wikipedia.org
Spiracle was aimed at sports groups but has branched out to other businesses, doing social media and consulting.
From the charlotteobserver.com
A spiracle is a small hole found behind each eye.
From the en.wikipedia.org
The middle ear of tetrapods is homologous with the spiracle of fishes, an opening from the pharynx to the side of the head in front of the main gill slits.
From the en.wikipedia.org
In teleost fish, the pseudobranchs are mostly without respiratory function, and in elasmobranchs they are the gill arch of the spiracle.
From the en.wikipedia.org
Called a spiracle opening, the cavity leads down into the gill chamber used for breathing and is thought to be the forerunner for the middle ear in modern land animals.
From the foxnews.com
More examples
A breathing orifice
Spiracles are openings on the surface of some animals that usually lead to respiratory systems.
A pore or opening used (especially by spiders and some fish) for breathing; The blowhole of a whale
(Spiracles) Breathing holes positioned along the abdomen
(Spiracles) External openings of tracheae through which bees breathe.
(Spiracles) The tiny holes in the side of a cockroach's body through which it breathes.
(Spiracles) Beetles breathe through spiracles which are a series of holes on the abdomen. The air passes directly through the body by a system of branching tubes.
(Spiracles) Openings on the thorax and abdomen of insects that allow the insect to breathe. They are particularly visible on body of light coloured beetle's larvae as they are rather dark. ...
(Spiracles) Small holes that run down the side of an insects abdomen and are used for breathing.