Sarcoptes scabiei

Este artigo ou secção contém uma lista de referências no fim do texto, mas as suas fontes não são claras porque não são citadas no corpo do artigo, o que compromete a confiabilidade das informações. Ajude a melhorar este artigo inserindo citações no corpo do artigo. (Janeiro de 2016)

Nota: "Ácaro-da-sarna" redireciona para este artigo. Para os causadores da sarna demodética, veja Demodex.

Sarcoptes scabiei

Classificação científica

Reino:	Animalia
Filo:	Arthropoda
Subfilo:	Chelicerata
Classe:	Arachnida
Subclasse:	Acarina
Ordem:	Acaridida (Astigmata)
Subordem:	Psoroptidia
Superfamília:	Sarcoptoidea
Família:	Sarcoptidae
Subfamília:	Sarcoptinae
Género:	Sarcoptes
Espécie:	S. scabiei Variedades: S. scabiei var. equi S. scabiei var. canis S. scabiei var. suis S. scabiei var. bovis S. scabiei var. ovis S. scabiei var. hominis

Nome binomial

Sarcoptes scabiei
De Geer, 1778

Sarcoptes scabiei é um artrópode que parasita tanto animais domésticos quanto o homem, causando uma doença conhecida como escabiose no homem e sarna sarcóptica nos animais.

Sua distribuição é cosmopolita e é totalmente democrática em sua escolha das vítimas. A prevalência é global é de aproximadamente 300 milhões de casos.

Morfologia

A fêmea é maior que o macho e tem um pouco menos que 0,5 mm de comprimento. Possuem quatro pares de patas quando adultos e três pares quando larva. São parasitas obrigatórios, têm seu corpo dividido em gnatossoma (rostral) e idiossoma (caudal). Não possuem espiráculo respiratório (a troca gasosa ocorre pela pele).

Tem corpo pequeno e globoso (0,2 – 0,5 mm), possui patas curtas, ideossoma com estrias transversais, espinhos em formato triangular no dorso, apódema em “Y” e ânus terminal em relação à placa anal.

Em machos, os tarsos I, II e IV possuem ventosas em pedicelo não segmentado. Fêmeas apresentam ventosas nos tarsos I e II.

Ciclo Biológico

A postura das fêmeas (ovíparas) é feita em parcelas (enquanto a fêmea escava seu túnel, vai efetuando a postura dos ovos), abaixo da epiderme do hospedeiro, em galerias ("túneis" escavados por fêmeas adultas), com incubação de três a cinco dias. A postura em parcelas e a diferença do período de incubação garantem que numa infestação gere larvas provenientes de uma mesma fêmea por até dois meses. Após esse período há a eclosão desses ovos, surgindo as larvas. Com o desenvolvimento das larvas, o ácaro passa ao estágio de ninfa [subdividido em dois instares (estágios) ninfais: protoninfa e tritoninfa]. Essa transformação de larva para ninfa pode ocorrer na “galeria” (em que os ovos foram depositados) ou na pele.

A ninfa passa a adulto imaturos na pele. Após a fertilização, esses são considerados adultos (o ciclo dura em torno de dezessete dias). O adulto permanece sobre a pele para aumentar sua capacidade de transmissão.

Durante as trocas de fases, os ácaros sofrem ecdise (muda da pele), possibilitando que esses cresçam.

As fêmeas adultas se ingurgitam se alimentando de linfa.

Bibliografia

Parasitologia Médica; Markell, John, Krotoski; oitava edição; Guanabara Koogan.

Ligações externas

Parasitologia Veterinária - UFSM

Este artigo sobre Biologia é um esboço. Você pode ajudar a Wikipédia expandindo-o.

Read other articles:

BMW Seri 3 (E30)

BMW Seri 3 (E30)InformasiProdusenBMWMasa produksi1981–1994Bodi & rangkaBentuk kerangka2-pintu coupé 2-pintu konvertibel4-pintu sedan5-pintu estateTata letakMesin depan, penggerak roda belakang (khusus 325iX penggerak seluruh roda)Mobil terkaitBMW M3Penyalur dayaMesinI4, 1.6 - 2.5 L (66 - 178 kW)I6, 2.0 - 3.3 L (92 - 145 kW)Transmisi3-percepatan otomatis4-percepatan otomatis4-percepatan manual5-percepatan manualDimensiJarak sumbu roda2.570 mm (101,2 in)Panjang1988-89 Seda...

Gestodene

Progestin medication GestodeneClinical dataTrade namesFemodene, Femodette, Gynera, Harmonet, Meliane, Minesse, Minulet, othersOther namesGSD; SHB-331; δ15-Norgestrel; 15-Dehydronorgestrel; 17-hydroxy-18a-homo-19-nor-17α-pregna-4,15-dien-20-yn-3-one; 17α-Ethynyl-18-methyl-19-nor-δ15-testosterone; 17α-Ethynyl-18-methylestra-4,15-dien-17β-ol-3-one; 13β-Ethyl-18,19-dinor-17α-pregna-4,15-dien-20-yn-17β-ol-3-oneAHFS/Drugs.comInternational Drug NamesPregnancycategory X Routes ofadministrati...

Ade Mochtar

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada September 2016. Ade MochtarInformasi pribadiNama lengkap Ade MochtarTanggal lahir 26 Agustus 1979 (umur 44)Posisi bermain KiperInformasi klubKlub saat ini Persegres GresikNomor 1Karier senior*Tahun Tim Tampil (Gol) Persigo Gorontalo 2009-2011 Bontang FC 2011- P...

Akbar Zulfakar Sipanawa

Akbar Zulfakar Sipanawa Anggota DPR 2009–2014dari Sulawesi TengahPetahanaMulai menjabat 1 Oktober 2009 Informasi pribadiLahir30 Mei 1975 (umur 48)Palu, Sulawesi Tengah, IndonesiaPartai politikPKSSuami/istriSanti NurjanahAnak6Sunting kotak info • L • B Akbar Zulfakar Sipanawa, S.T. (lahir 30 Mei 1975) adalah seorang politikus Indonesia. Ia pernah menjabat sebagai anggota DPR RI periode 2009-2014 fraksi Partai Partai Keadilan Sejahtera. Politisi dari Palu ini terpilih s...

Heri Akhmadi

Heri Akhmadi Duta Besar Indonesia Untuk JepangPetahanaMulai menjabat 26 Oktober 2020PresidenJoko Widodo PendahuluArifin TasrifPenggantiPetahana Informasi pribadiLahir1 Januari 1953 (umur 71)Ponorogo, IndonesiaKebangsaanIndonesiaSuami/istriNuning WahyuniatiPekerjaanPolitisi, diplomatSunting kotak info • L • B Ir. Heri Akhmadi (lahir 1 Januari 1953) adalah anggota DPR RI periode 1999-2004, 2004-2009 dan 2009-2014 dari PDI Perjuangan mewakili Jawa Timur untuk Pacitan, Ngaw...

Cireng isi

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada Februari 2023. Artikel ini tidak memiliki referensi atau sumber tepercaya sehingga isinya tidak bisa dipastikan. Tolong bantu perbaiki artikel ini dengan menambahkan referensi yang layak. Tulisan tanpa sumber dapat dipertanyakan dan dihapus sewaktu-waktu.Cari sumber...

العلاقات الإيرانية الموزمبيقية

العلاقات الإيرانية الموزمبيقية إيران موزمبيق إيران موزمبيق تعديل مصدري - تعديل العلاقات الإيرانية الموزمبيقية هي العلاقات الثنائية التي تجمع بين إيران وموزمبيق.[1][2][3][4][5] مقارنة بين البلدين هذه مقارنة عامة ومرجعية للدولتين: وجه المق...

Kejambon, Taman, Pemalang

Artikel atau bagian mungkin perlu ditulis ulang agar sesuai dengan standar kualitas Wikipedia. Anda dapat membantu memperbaikinya. Halaman pembicaraan dari artikel ini mungkin berisi beberapa saran. Artikel ini tidak memiliki referensi atau sumber tepercaya sehingga isinya tidak bisa dipastikan. Tolong bantu perbaiki artikel ini dengan menambahkan referensi yang layak. Tulisan tanpa sumber dapat dipertanyakan dan dihapus sewaktu-waktu.Cari sumber: Kejambon, Taman, Pemalang – ...

Yisrael Zaguri

Questa voce sull'argomento calciatori israeliani è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Yisrael Zaguri Nazionalità Israele Altezza 176 cm Peso 67 kg Calcio Ruolo Centrocampista Squadra Hapoel Migdal HaEmek Carriera Squadre di club1 2008-2010 Maccabi Haifa9 (0)2010-2011→ Hapoel Petah Tiqwa26 (2)2011-2012→ Bnei Yehuda26 (1)2012-2013 Hapoel Ramat Gan30 (7)20...

George Majeroni

Majeroni (kanan) dalam The Caillaux Case (1918) George Majeroni, juga dikenal sebagai Giorgio Majeroni, (1877–1924) adalah seorang pemeran panggung dan layar lebar. Ia berperan dalam film-film bisu yang meliputi My Lady Incog dimana ia beradu peran dengan Hazel Dawn. Filmografi The Sign of the Cross (1914) Bella Donna (1915) The Eternal City (1915) Diplomacy (1916) My Lady Incog (1916) The Feud Girl (1916) As in a Looking Glass (1916) Patria (serial) (1917) Who's Your Neighbor? (1917) Stran...

Through the Rain

2002 single by Mariah Carey Through the RainOne of the alternative commercial artworks.Single by Mariah Careyfrom the album Charmbracelet B-sideBringin' On the Heartbreak (Live)ReleasedSeptember 30, 2002 (2002-09-30)RecordedMay 2002GenreR&B, soulLength4:48 (album version)4:19 (radio edit)LabelIsland Def JamSongwriter(s) Mariah Carey Lionel Cole Producer(s) Mariah Carey Jimmy Jam and Terry Lewis Mariah Carey singles chronology Never Too Far/Hero Medley (2001) Through the Rai...

Иустин Философ

В Википедии есть статьи о других людях с именем Иустин. Иусти́н Философдр.-греч. Ἰουστίνος ὁ Φιλόσοφος Роспись церкви свт. Николая монастыря Ставроникита, Афон. Мастера Феофан Критский и Симеон. 1546 г. Родился около 100Флавия Неаполис, Сирия Палестинская, Римская империя Ум...

National Highway 713A (India)

National Highway in North East India National Highway 713AMap of National Highway 713A in redRoute informationLength35 km (22 mi)Major junctionsSouth endHoj, Arunachal PradeshNorth endPappu, Arunachal Pradesh LocationCountryIndiaStatesArunachal Pradesh Highway system Roads in India Expressways National State Asian ← NH 13→ NH 415 National Highway 713A (NH 713A) is a National Highway in North East India that connects Hoj and Pappu in Arunachal Pradesh.[1] S...

Saint-Lin-Laurentides, Quebec

Saint-Lin-Laurentides merupakan sebuah kota kecil di Quebec, Kanada di Kotamadya Kabupaten Regional Kotamadya Kabupaten Regional Montcalm. Dalam sensus Kanada 2001, kota ini memiliki jumlah penduduk 12.384 jiwa. Saint-Lin merupakan tempat lahir mantan Perdana Menteri Kanada Wilfrid Laurier. Pranala luar (Prancis) Ville de Saint-Lin-Laurentides Statistics Canada 2001 profile[pranala nonaktif permanen] 45°51′8.5″N 73°45′25.5″W / 45.852361°N 73.757083°W...

Esmil Rogers

Dominican baseball player (born 1985) Baseball player Esmil RogersRogers with the New York YankeesEl Águila de Veracruz – No. 36PitcherBorn: (1985-08-14) August 14, 1985 (age 38)San Pedro de Macorís, Dominican RepublicBats: RightThrows: RightProfessional debutMLB: September 12, 2009, for the Colorado RockiesKBO: August 6, 2015, for the Hanwha EaglesMLB statistics (through 2015 season)Win–loss record19–22ERA5.59Strikeouts386WHIP1.57KBO statistics (thr...

Ashdown Forest

Natural area in East Sussex, England Ashdown ForestVanguard Way across Ashdown ForestLocation of Ashdown Forest in East SussexLocationEast Sussex, EnglandCoordinates51°04′21″N 0°02′35″E / 51.07250°N 0.04306°E / 51.07250; 0.04306Governing bodyThe Conservators of Ashdown ForestWebsitewww.ashdownforest.org Ashdown Forest is an ancient area of open heathland occupying the highest sandy ridge-top of the High Weald Area of Outstanding Natural Beauty. It is s...

Mindoro (province)

Former province of the Philippines Mindoro was a province of the Philippines from 1902 until 1950 when it was split into two provinces, Occidental Mindoro and Oriental Mindoro. It is located on Mindoro island, Philippines. Province of MindoroFormer province of the Philippines1902-1950Location of the historical province of MindoroCapitalPuerto GaleraHistory • Mindoro as a sub-province of Marinduque. June 23 1902• Mindoro as an independent province. November 21 1902• S...

Universal Product Code

Barcode symbology used for tracking trade items in stores A UPC barcode The Universal Product Code (UPC or UPC code) is a barcode symbology that is used worldwide for tracking trade items in stores. The chosen symbology has bars (or spaces) of exactly 1, 2, 3, or 4 units wide each; each decimal digit to be encoded consists of two bars and two spaces chosen to have a total width of 7 units, in both an even and an odd parity form, which enables being scanned in either direction. Special guard p...

American Guide Series

Local tourism guides by WPA employees Cover of the Illinois state guideThe American Guide Series includes books and pamphlets published from 1937 to 1941 under the auspices of the Federal Writers' Project (FWP), a Depression-era program that was part of the larger Works Progress Administration in the United States. The American Guide Series books were compiled by the FWP, but printed by individual states, and contained detailed histories of each of the then 48 states of the Union with descrip...

Second Thatcher ministry

Government of the United Kingdom from 1983 to 1987 Main article: List of ministers under Margaret Thatcher This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (June 2017) (Learn how and when to remove this message) Second Thatcher ministryCabinet of the United Kingdom1983–1987Thatcher in 1983Date formed10 June 1983...