sistem respirasi.pptx
DESCRIPTION
sistem respirasiTRANSCRIPT
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Sistem Respirasi
Joshua Peterson102009326
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Struktur makroskopik sistem respirasi
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Struktur mikroskopik
Hidung Kavum nasi• Vestibulum nasi-vibrisae,kel. sebasea,kel. keringat• Fossa nasalis Konka nasalis superior-ep. khusus Konka nasalis media & inferior-ep.bersilia bersel goblet -plexus venosus,swell bodies Ep. Bertingkat torak bersilia-lamina propria/mukoperiosteum Ep. Olfaktorius Tunika mukosa-sinus paranasalis;maxillaris,frontalis,spenoidalis,ethmoidalis-kel. produksi mukos
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Epitel bertingkat torak bersilia• Silia berperan mendo-
rong lendir kearah be-lakang yaitu nasofaring ---kemudian tertelan dibatukkan
• Noduli limfatisi
• Kelenjar campur• T.R
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Epitel olfaktorius• 6 -8 silia olfaktorius• Vesikula olfaktorius• Pigmen coklat
• Sel penyokong• Sel olfaktorius
• Sel basal• Axon• Tubulo – alveolar (serosa)
—Kel.Bowman
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Faring
Nasofaring-ep bersilia bersel goblet -pada lamina propria kel. campur -posterior-jar limfoid mmbntuk tonsila faringea -muara-osteum faringeum tuba auditiva -byk jar limfoid sekeliling-tonsila tuba Orofarings-ep brlapis TANPA lap tanduk -bgn atas ep mulut -bgn bwh ep oesophagus Laringofaring-ep brlapis TANPA lap tanduk -belakang larings
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larings
• TR Hialin-1 TR Tiroid -2 TR Krikoid -2 TR Aritenoid• TR Elastis-1 TR Epiglottis -2 TR Kuneiformis -2 TR Kornikulata
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EPIGLOTIS
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• Kelenjar campur
• Pita ventrikularis ---Epit bertkt torak +silia+goblet
• Ventrikulus Morgagni• Pita vokalis—Ep berlapis
gepeng• Lig.Vokalis ---Serat 2
elastis sejajar• M.Vokalis---otot skelet
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Trakea
• Pars kartilagenia-tlng rawan• Pars membranasea-otot polos• Sel epitel trakea-sel goblet -sel sikat -sel basal -sel sekretorik
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Trakea
Bronkus Bronkiolus
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Bronkiolus
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Septum interalveolaris
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Mekanisme pernafasan internal
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Transport Oksigen dan karbon dioksida
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Sistem buffer
• Asam,basa konjugasi• Alkalosis-metabolik-bikarbonat naik -respiratorik-asam bikarbonat turun• Asidosis –metabolik-bikarbonat turun -repiratorik-asam bikarbonat naik• Buffer H2CO3-HCO3(luar sel)• H2PO4(intra sel) • Hb(eritrosit)• Protein
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Mekanisme pernafasan eksternal
• Neuron kelompok dorsal-neuron I -mpersarafi otot inspirasi• Neuron kelompok ventral-neuron I -neuron E• Pusat apneustik(pons bawah)-pengaruh tonik,dhambat eferen
N X• Pusat pneumotaksik(pons atas)-menghambat neuron I -lebih dominan dari apneustik
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Gangguan pernafasan
• Hipoksia –hipoksik,anemik,stagnan,histotoksik,over utilization hypoxia
• Hiperkapnia • Asyphyxia• Hiperbarik• Hipobarik
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Pemeriksaan
• Inspeksi• Palpasi• Perkusi• Auskultasi
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Spirogram