Espiráculo

O espiráculo^[1] (do latín spiraculum, "respiradeiro"), é o orificio respiratorio que moitos animais, terrestres e especialmente acuáticos, teñen como contacto do aire (ou a auga) e o seu sistema respiratorio interno.

Características

Todos os animais con espiráculo teñen en común o feito de que a localización deste é na parte superior do corpo, xeralmente detrás dos ollos.

No caso dos mamíferos mariños, o espiráculo conduce o aire que respiran cara aos pulmóns. O orificio é controlado polo animal, con capacidade para se abrir ou pechar a fin de conter a respiración baixo a auga. Cetáceos como os golfiños teñen un espiráculo único e outros como a balea azul teñen un espiráculo duplo.

Cando os cetáceos saen á superficie da auga para respiraren, expulsan con forza o aire almacenado nos seus pulmóns a través do orificio nasal. Ademais de aire, expulsan moco e nitróxeno formado no seu metabolismo.^[2]

Outros animais mariños, como os tiburóns, teñen espiráculo para conducir a auga cara ás súas branquias (para despois "exhalala" polas galadas), e xeralmente téñeno permanentemente aberto.

Tamén se chama espiráculo o orificio respiratorio no exoesqueleto dos insectos e algúns arácnidos, que comunica o exterior coas traqueas, así como ao orificio respiratorio das larvas dos anfibios ou cágados.

Notas

↑ Definicións no Dicionario da Real Academia Galega e no Portal das Palabras para espiráculo.
↑ Bottlenose dolphins physical characteristics Arquivado 18 de maio de 2012 en Wayback Machine..

Read other articles:

Asam salisilat

Asam salisilat Nama Nama IUPAC Asam 2-hidroksibenzoat Penanda Nomor CAS 69-72-7 N Model 3D (JSmol) Gambar interaktif 3DMet {{{3DMet}}} ChemSpider 331 Nomor EC PubChem CID 338 Nomor RTECS {{{value}}} CompTox Dashboard (EPA) DTXSID7026368 SMILES OC(=O)c1ccccc1O Sifat Rumus kimia C7H6O3 Massa molar 138,12 g/mol Densitas 1,44 g/cm3 Titik lebur 159 °C Titik didih 211 °C (2666 Pa) Kelarutan dalam kloroform, etanol, metanol kloroform 0,19 ...

Giulio Andreotti

Disambiguazione – Andreotti rimanda qui. Se stai cercando altri significati, vedi Andreotti (disambigua). Giulio AndreottiRitratto ufficiale, 1987 Presidente del Consiglio dei ministri della Repubblica ItalianaDurata mandato18 febbraio 1972 –8 luglio 1973 Capo di StatoGiovanni Leone Vice presidenteMario Tanassi PredecessoreEmilio Colombo SuccessoreMariano Rumor Durata mandato30 luglio 1976 –5 agosto 1979 Capo di StatoGiovanni LeoneSandro Pertini...

Associazione Calcio Como 1955-1956

Voce principale: Calcio Como. Associazione Calcio ComoStagione 1955-1956Sport calcio Squadra Como Allenatore Hugo Lamanna Presidente Francesco Ambrosoli Serie B3º posto Maggiori presenzeCampionato: Baldini, Mezzadri (34) Miglior marcatoreCampionato: Santoni (10) 1954-1955 1956-1957 Si invita a seguire il modello di voce Questa pagina raccoglie le informazioni riguardanti l'Associazione Calcio Como nelle competizioni ufficiali della stagione 1955-1956. Indice 1 Stagione 2 Divise 3 Organ...

فارمرسبيرغ

فارمرسبيرغ الإحداثيات 42°57′31″N 91°22′03″W / 42.958516666667°N 91.367555555556°W / 42.958516666667; -91.367555555556 [1] تاريخ التأسيس 1856 تقسيم إداري البلد الولايات المتحدة[2] التقسيم الأعلى مقاطعة كلايتون خصائص جغرافية المساحة 1.039865 كيلومتر مربع1.039862 كيلومتر مرب...

Great grey owl

Species of owl Great grey owl Strix nebulosa Conservation status Least Concern (IUCN 3.1)[1] CITES Appendix II (CITES)[2] Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Aves Order: Strigiformes Family: Strigidae Genus: Strix Species: S. nebulosa Binomial name Strix nebulosaForster, 1772 The great grey owl (Strix nebulosa) (also great gray owl in American English) is an owl, which is the world's largest species of owl by le...

Mark Williams (attore)

Williams nel 2017 Mark Williams (Bromsgrove, 22 agosto 1959) è un attore, comico e sceneggiatore britannico. È noto principalmente per aver interpretato Arthur Weasley nei film tratti dalla saga di Harry Potter e l'omonimo protagonista nella serie TV della BBC Padre Brown. Indice 1 Biografia 2 Filmografia parziale 2.1 Cinema 2.2 Televisione 3 Doppiatore 4 Doppiatori italiani 5 Altri progetti 6 Collegamenti esterni Biografia Dal pubblico britannico è conosciuto principalmente come uno dei p...

Kota Prabumulih

Kota PrabumulihKotaTranskripsi bahasa daerah • Abjad Jawiڤرابوموليه • Surat Uluꤶ꥓ꤽꤷꥈꤸꥈꤾꥇꥁ꥓Stasiun Kereta Api Prabumulih LambangJulukan: Kota NanasMotto: Prabumulih jaya - Seinggok sepemunyianJayalah Kota Prabumulih - Seiya sekataPetaKota PrabumulihPetaTampilkan peta SumatraKota PrabumulihKota Prabumulih (Indonesia)Tampilkan peta IndonesiaKoordinat: 3°25′58″S 104°14′08″E / 3.4328°S 104.2356°E...

哈萨克斯坦总统

此条目序言章节没有充分总结全文内容要点。 (2019年3月21日)请考虑扩充序言，清晰概述条目所有重點。请在条目的讨论页讨论此问题。哈萨克斯坦總統哈薩克總統旗現任Қасым-Жомарт Кемелұлы Тоқаев卡瑟姆若马尔特·托卡耶夫自2019年3月20日在任任期7年首任努尔苏丹·纳扎尔巴耶夫设立1990年4月24日（哈薩克蘇維埃社會主義共和國總統）哈萨克斯坦哈萨克斯坦政府...

Telti

Telti TèltiKomuneComune di TeltiLokasi Telti di Provinsi SassariNegaraItaliaWilayah SardiniaProvinsiSassari (SS)Pemerintahan • Wali kotaGian Franco PinducciuLuas[1] • Total83,25 km2 (32,14 sq mi)Ketinggian[2]326 m (1,070 ft)Populasi (2016)[3] • Total2,304 • Kepadatan28/km2 (72/sq mi)Zona waktuUTC+1 (CET) • Musim panas (DST)UTC+2 (CEST)Kode pos07020Kode area telepon0789Situs ...

Accelerating expansion of the universe

Cosmological phenomenon Part of a series onPhysical cosmology Big Bang · Universe Age of the universe Chronology of the universe Early universe Inflation · Nucleosynthesis Backgrounds Gravitational wave (GWB) Microwave (CMB) · Neutrino (CNB) Expansion · Future Hubble's law · Redshift Expansion of the universe FLRW metric · Friedmann equations Inhomogeneous cosmology Future of an expanding universe Ultimate fate of the universe Components · Structure C...

Admiralty in the 16th century

English government ministry responsible for the Royal Navy until 1707 Admiralty and Marine Affairs OfficeGovernment agency overviewFormed1414Preceding Government agencyOffices of the Kings MarineDissolved1707JurisdictionParliament of EnglandHeadquartersAdmiralty Building, Whitehall, LondonGovernment agency executiveLord High AdmiralParent Government agencyPrivy Council of England The Admiralty and Marine Affairs Office (1546–1707), previously known as the Admiralty Office (1414–1546), ...

Suzuki MotoGP

Suzuki MotoGPBerkas:Logo Team Suzuki Ecstar MotoGP.jpgNama resmiTeam Suzuki EcstarPimpinan timLivio SuppoRider 42. Álex Rins 36. Joan MirSepeda motorSuzuki GSX-RRBanMichelinJuara rider61976, 1977 Barry Sheene1981 Marco Lucchinelli1982 Franco Uncini1993 Kevin Schwantz2000 Kenny Roberts, Jr. 2020 Joan Mir Suzuki GSV-R, motor andalan tim Suzuki di ajang MotoGP. Suzuki MotoGP, turun dengan nama Team SUZUKI ECSTAR untuk alasan sponsorship, merupakan tim balap motor bentukan Suzuki untuk berlaga d...

The Walt Disney Company Italy

Italian division of the Walt Disney Company The Walt Disney Company Italia S.r.l.Trade nameDisney ItalyFormerlyCreazioni Walt Disney S.A.I.The Walt Disney Company Italia S.p.A.Company typeSubsidiaryIndustryMedia conglomerateFounded8 May 1938 (1938-05-08)HeadquartersMilan, ItalyArea servedItalyKey peopleDaniel FrigoNumber of employees550ParentThe Walt Disney Company EMEA(Disney Entertainment)DivisionsWalt Disney Studios Motion Pictures ItaliaDisney Interactive Media Group Italia...

Kromatografi

Kromatografi Kromatografi adalah suatu teknik pemisahan molekul berdasarkan perbedaan pola pergerakan antara fase gerak dan fase diam untuk memisahkan komponen (berupa molekul) yang berada pada larutan.[1] Molekul yang terlarut dalam fase gerak, akan melewati kolom yang merupakan fase diam.[1] Molekul yang memiliki ikatan yang kuat dengan kolom akan cenderung bergerak lebih lambat dibanding molekul yang berikatan lemah.[2] Dengan ini, berbagai macam tipe molekul dapat ...

Дворец изящных искусств (Лилль)

У этого термина существуют и другие значения, см. Дворец изящных искусств. Дворец изящных искусствPalais des Beaux-Arts Дата основания 1809 Дата открытия 6 марта 1892 Основатель Наполеон I[1] Посетителей в год около 316 000 в год (данные 2012 года) Награды Musée de France[вд] Council of Europe Museum Prize[в�...

大阪学院大学高等学校

大阪学院大学高等学校北緯34度46分9.8秒東経135度32分34.5秒 / 北緯34.769389度東経135.542917度 / 34.769389; 135.542917座標: 北緯34度46分9.8秒東経135度32分34.5秒 / 北緯34.769389度東経135.542917度 / 34.769389; 135.542917過去の名称関西経済学院商業高等学校関西経済学院高等学校国公私立の別私立学校設置者学校法人大阪学院大学校訓明朗・努力・誠実�...

Luis Garnier

Questa voce sull'argomento calciatori argentini è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Luis GarnierNazionalità Argentina Altezza172 cm Peso73 kg Calcio RuoloCentrocampista Termine carriera2024 CarrieraSquadre di club1 2001-2004 Atlético Uruguay? (?)2004-2005 Tiro Federal5 (0)2005-2006→ Juv. Antoniana32 (3)2006-2010 Tiro Federal117 (6)2010-2011 Racing (C)? (?)...

Siphiwe Tshabalala

South African soccer player Not to be confused with Simpiwe Tshabalala.For other uses, see Tshabalala. Siphiwe Tshabalala Tshabalala in 2021Personal informationFull name Lawrence Siphiwe Dambuza Tshabalala[1]Date of birth (1984-09-25) 25 September 1984 (age 40)Place of birth Soweto, South AfricaHeight 1.70 m (5 ft 7 in)Position(s) WingerAttacking midfielderYouth career1991–1994 Phiri Arsenal1994–1997 Phiri Movers1997–2002 Kaizer Chiefs2002–2003 Moroka Swall...

Essaïd Abelouache

Moroccan cyclist Essaïd AbelouachePersonal informationFull nameEssaïd AbelouacheBorn (1988-07-20) 20 July 1988 (age 36)Agadir, MoroccoTeam informationCurrent teamAl Shafar Jumeirah Cycling TeamDisciplineRoadRoleRiderAmateur teams2015Fath Union Sport2022–Al Shafar Jumeirah Cycling Team Professional teams2016Al Nasr Pro Cycling Team–Dubai2018Sharjah Team Essaïd Abelouache (born 20 July 1988) is a Moroccan racing cyclist,[1][2] who rides for Emirati amateur ...

James Esdaile

Scottish surgeon For his father, the Scottish minister and writer, see James Esdaile (minister). For the British politician, see James Esdaile (mayor). Hypnosis Applications Age regression in therapy Animal magnetism Hypnotherapy Stage hypnosis Self-hypnosis Hypnoanalysis Hypnosurgery Origins/History History of hypnosis Royal Commission on Animal Magnetism Key figures Theodore Xenophon Barber Deirdre Barrett Hippolyte Bernheim Alexandre Bertrand Gil Boyne James Braid John Milne Bramwell Willi...