From Wikipedia, the free encyclopedia
Li mamiferes (klase Mammalia) es li klase de vertebrosi animales karakterisat dal presenteso de mamal glandes, kel in females produkte milke por nutrio de yunes. Les es anke karakterisat del presenteso de piles o fure e homeotermi, tu es varmi-sangal, korpores. Li serebre regula li homeotermi e sirkulational sistemes, inklusent li quar-chambral kordie. Mamiferes inkluse 5 500 spesies (inklusent homes) distribut trans sirk 1 200 genres, 152 families e til 46 ordines, quankam li exakti nombres varia segun li klasifikal skeme.
?Mamiferes
| ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Procyon lotor | ||||||||||
Siential klasifikatione | ||||||||||
| ||||||||||
| ||||||||||
Filogenetikalim on defini li klase Mammalia kom omni desenseres del maxim resenti komuni ansestre del ordine Monotremata (exemplim ekidnes e ornitorinkes) e del subklase Theria (marsupiales e plasentales).
Li majoritate de mamiferes have set servikal vertebres (kolal oses), inklusent vespertilies, girafes, balenes e homes. Li poki exeptiones inkluse li genre Choloepus, kel have nur six servikal verterbres, e li genre Bradypus kun nin servikal vertebres. Mamiferes have tri oses in chaki orele e uni (li mandible) an chaki flanke del subi maxile. Un grupe de terapsides nomat sinodontes haved tri oses in li maxile, ma li maxim grandi maxilal junkte esed li mandible e li altri oses kondukted suone. On kreda ke li plusi maxilal oses de altri vertebroses es homologi ye li malleus (hamre ose) e incus del mamiferal orele.
Vida li texte pri mamiferal lunges.
Li mamiferal kordie have quar chambres: li dextri atrie(?), dextri ventrikle, lefti atrie(?) e lefti ventrikle. Atries resiva sange e li ventrikles pumpa sange al lunges e korpore. Li ventrikles es plu grandi kam li atries e lusen mures es diki, pro ke musklosi mures es besonat por forsosim pumpa li sange fro li kordie al korpore e lunges. Desoxigenat (?) sange fro li korpore envada li dextri atrium, kel pumpa lu al dextri ventrikle. Li dextri ventrikle pumpa sange al lunges, vor karbo dioxide difuse eku e oxigene difuse inu. Fro li lunges oxigenat sange envada li lefti atrie, kel pumpa lu al lefti ventrikle (li maxim grandi a maxim forti del quar chambres), kel pumpa lu eku al reste del korpore, inklusent li kordien propri sangal provisione.
General subfakes de biologia |
---|
Anatomia | Astrobiologia | Bioinformatike | Biokemie | Botanike | Ekologia | Developal biologia | Evolutional biologia | Fisiologia | Genetike | Genomike | Homal biologia |Maral biologia | Mikrobiologia | Molekulal biologia | Origine de vivo | Paleontologia | Parasitologia | Selulal biologia | Soologia | Taxonomie |
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.