Ms. Mariana Maluli Marinho de Mello - Unesp
Transcript of Ms. Mariana Maluli Marinho de Mello - Unesp
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Ms. Mariana Maluli Marinho de Mello
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• Líquidos:• Hemolinfa, linfa ou sangue
• Gases respiratórios
• Excretas
• Células
• Substâncias de controle
• Nutrientes
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Ausente
Presente
Difusão simples
Fechado
Aberto
Circulação dupla
Circulação simples
Circulação completa
Circulação incompleta
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Maioria dos moluscosArtrópodes
AnelídeosAlguns moluscosVertebrados
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• Vaso dorsal contrátil• Movimentos peristálticos
• Corpo Cabeça
• Corações
• Vaso ventral • Cabeça Corpo
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• Coração
• Pigmento respiratório: hemocianina (Cu)
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• Circulação aberta• Cefalópodes: circulação fechada
• Brânquias coração sistêmico corpo
• Corpo corações branquiais brânquias
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• Coração (1 ou mais)
• Circulação aberta• Hemolinfa circula sob baixa pressão
Hemolinfa: sem distinção entre o líquido intersticial e o sangue
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Artêmia:
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• Espécies menores e/ou menos ativas simples
• Espécies grandes e/ou mais ativas coração musculoso e extensa rede de vasos
Artêmia:• Coração tubular• Poucos vasos
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Sistema circulatório aberto mais sofisticado entre os invertebrados!
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• Vaso dorsal• Região posterior contrátil coração
• Órgão acessório apêndices longos e estreitos
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Respiração traqueal
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• Limulus polyphemus
• Hemocianina• LAL (Limulus Amebocyte Lysate) detecção de
antígenos bacterianos
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• Detecção de contaminação bacteriana em produtos farmacêuticos
• Diagnóstico de endotoxemiaassociada • Cirrose• Câncer• Meningite• Problemas dentais• Doenças venéreas
• Análise da qualidade das águas.
• Detecção de contaminação bacteriana em alimentos
• Peptídeo que inibe a replicação do HIV
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• Urocordados• Coração simples
• Cefalocordados• Vasos contráteis
Circulação aberta
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Aorta ventral
Aorta dorsal
baixa pressão baixo fluxo
Circulação simples e completa
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Circulação dupla e incompleta
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O mistério das jararacas que abandonaram o chão e agora vivem em árvores na Amazônia
Bothrops atrox
• Cheias –Fevereiro a Julho –cobras sobem nas árvores
• Mudanças morfológicas• Caudas compridas• Vasos sanguíneos longos• Esguias
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Circulação dupla e incompleta distribuição seletiva do
sangue arterial e venoso
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Circulação dupla e completa
• Disponibilidade de energia• Eficiência metabólica• Homeotermia
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• Coração grande e muscular
• Maior pressão arterial entre mamíferos• Vasos sanguíneos grossos
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• Baixo peso
• Coração grande – 1 a 2% p.v.
• Contração venosa
• Válvulas
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