Linked from

The 29 pages that link to Spiracle, each with the reason it gives.

• SharkRelated: Some sharks use this opening to ventilate the gills while resting on the seabed.

• ChondrichthyesRelated: Spiracles help rays and bottom-dwelling sharks draw water over their gills while resting.

• Tracheal systemBroader topic: These openings regulate airflow at the body surface and lead into the tracheae.

• Book lungRelated: Air reaches many book lungs through a spiracle in the body wall.

• OperculumCompared with: Sharks use spiracles for water intake rather than a bony opercular cover.

• CaterpillarRelated: Rows of spiracles let caterpillars exchange gases without lungs.

• Manta rayRelated: Spiracles help rays draw water over their gills when not swimming forward.

• Insect respirationBroader topic: Spiracles admit air and can close to limit water loss.

• ElasmobranchiiRelated: Spiracles are especially useful for ventilation in bottom-dwelling elasmobranchs.

• PanderichthysRelated: The large spiracular region in Panderichthys has been linked to breathing in shallow water.

• SkateBroader topic: A skate can draw water through its spiracles while resting on the seafloor.

• ChimaeraCompared with: Chimaeras’ gill openings are covered by a flap, unlike the separate exposed openings typical of sharks.

• Plastron respirationRelated: Some plastron-breathing insects connect their gas layer to internal airways through spiracles.

• SawfishRelated: A sawfish can draw water through its spiracles while resting on the bottom.

• BatoideaRelated: Many batoids use spiracles to take in water while resting on the seabed.

• Nurse sharkRelated: Spiracles help move water over the gills while the shark rests on the bottom.

• Carpet sharkRelated: Spiracles help several carpet sharks breathe while resting on the bottom.

• GuitarfishRelated: A guitarfish can take in water through its spiracles while resting on the bottom.

• WobbegongRelated: Wobbegongs can use spiracles to move water over their gills while resting on the bottom.

• Eagle rayRelated: Eagle rays can take in water through spiracles while resting on or swimming near the seabed.

• Sand tiger sharkRelated: Spiracles help supply water to the gills while the shark rests near the seabed.

• Madagascar hissing cockroachRelated: Air forced through these breathing openings produces the cockroach’s hiss.

• AngelsharkRelated: Spiracles let a resting angelshark move water over its gills without swimming.

• BatomorphiRelated: Many batoids draw water through spiracles while resting on the seabed.

• Fiddler rayRelated: Bottom-dwelling rays can take in water through spiracles while resting on sediment.

• HoundsharkRelated: Several houndsharks use spiracles to ventilate their gills while resting on the bottom.

• PotamotrygonidaeRelated: Spiracles let bottom-dwelling rays breathe while their mouths rest against the substrate.

• ScyliorhinidaeRelated: Many catsharks use spiracles to draw water across their gills while resting on the bottom.

• Whiptail stingrayRelated: A spiracle lets a resting stingray breathe while its mouth remains against the seafloor.