anatomi faring dan laring
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KELOMPOK D
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Faring : kantong
fibromuskuler bentuk spt corong: dr dasar tengkorak tepi bwh kartilago krikoid
panjang ± 14cm bagian dorsal:
basis kranii VC6
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Otot Faring Tersusun dalam lapisan melingkar dan memanjang.
Otot Sirkuler : m. Konstriktor faring superior, medial, dan inferior. Berfungsi mengecilkan lumen faring dan dipersarafi oleh n.vagus (n.x)
Otot Longitudinal : m.stilofaring (melebarkan faring dan menarik faring), dan m.palatofaring (mempertemukan ismus orofaring dan menaikkan bagian bawah faring dan laring)
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Atas : Basis kraniiBawah : Palatum moleBelakang : Vertebra servikalisDepan : KoaneLateral : Ostium tuba
EustachiusTorus tubariusFossa Rosenmuler (resesus faringeus)
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Atas : Palatum Mole Bawah : Tepi Atas Epiglotis Depan : Rongga Mulut Belakang : Vertebra servikalIsmus fausium: batas faring & kavum oris Arkus palatoglosus/anterior ~ m.
palatoglosus Arkus palatofaring/posterior ~ m.
palatofaring di antara ke-2 arkus : fossa tonsilaris
tempat tonsil palatina
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Arkus anterior dibentuk oleh
m palatoglossus
Arkus posterior terbentuk
oleh m palatopharyngeusTonsil tltk diantara arkus anterior
dan posterior
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- ADENOID (tonsila faringealis)-Tonsila palatina (amandel)-Tonsila lingualis-Tonsil Tuba Eustachius
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Pertahanan terhadap kuman patogen Penghasil antibodi spesifik (Ig) Penghasil limfosit Berperan terhadap proses imunologis
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Terletak di fosa tonsilaris, di orofaring Anterior : m.palatoglosus (plika anterior)
Posterior : m.palatofaringeus (plika posterior) Kedua otot bergabung di palatum mole
Jaringan limfoid seperti buah kenari, dibungkus kapsul jar. fibrus warna putih (fasia faringeal)
Terdiri dari folikel dan kanalikuli(saluran) Bermuara di ostium ( kripta) Permukaan tonsil dilapisi epitel skuamus berlapis, 8
– 20 kripta Dinding lateral : melekat longgar pd m.konstriktor
faringeus superior
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Atas : Tepi atas epiglotisBawah : Introitus esofagusBelakang : Vertebra servikalisDepan : Laring
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Fungsi utama : sebagai tabung kaku & terbuka untuk udara pernapasan
Saluran ventilasi & drainase dari auris media melalui tuba Eustachius
Saluran & drainase dari hidung Sebagai ruang resonansi
(pembentukan suara)
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Saluran pernapasan & drainase dari nasofaring
Saluran makanan/minuman dari mulut Ruang resonansi suara Jaringan limfoid (cincin Waldeyer)
pelindung, menghilangkan / menghancurkan benda asing, membentuk antibodi
Proses menelan
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Struktur Rangka LaringLigamen dan membranPersendianMuskuli laring
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Struktur Rangka Laring Os hioid Kartilago tiroid Kartilago krikoid (satu-satunya yg
berbentuk cincin) Kartilago epiglotis Kartilago aritenoid (sepasang) Kartilago kornikulata (sepasang) Kartilago kunaeiformis Kartilago tritisea (didlm ligamen
hiotiroid lateral)
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Ligamen & Membran Membran tirohioid Ligamen hioepiglotik Membran krikotiroid
ANATOMI LARING
Persendian Artikulasi krikotiroid Artikulasi krikoaritenoid
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Muskulus : Muskulus ekstrinsik
Suprahioid
Diatas os hioid, berfungsi menarik laring kebawah Infrahioid Dibwh os hioid, berfungsi menarik laring
keatas Muskulus intrinsik
gol. adduktor Mendekatkan kedua pita suara ke tengah gol. abduktor (sepasang) menjauhkan kedua pita suara ke lateral
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Muskulus ekstrinsik
Suprahioid (diatas os hioid, berfungsi menarik laring kebawah) m digastrikus m geniohioid m stilohioid m milohioid
Infrahioid (dibwh os hioid, berfungsi menarik laring keatas) m sternohioid m omohiod m tirohioid
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ANATOMI LARING
Muskulus IntrinsikBerfungsi untuk menggerakkan pita suara :
gol. adduktor (5 pasang) menggerakkan KV ke medial
1. mm. krikoaritenoid lateral (d/s)
2. mm. tireoaritenoid (d/s) = m. vokalis
3. mm. krikotiroid
4. mm. interaritenoid obligus (2 bersilang)
5. mm. interaritenoid transversus (tunggal) gol. abduktor (sepasang) menggerakkan KV ke lateral
m krikoaritenoid posteriorl
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abduktor
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Muskulus
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Inervasi : sangat kompleks baik segi anatomi/fisiologi sepasang N. laringeus superior & inferior ~
cab. N. X SEGI ANATOMI : N. laringeus inferior sinistra
lebih panjang (membelok di aorta sebelum naik ke atas) mudah mendpt gangguan : - cor pulmonale, cor bovinum, pericarditis, post
tireodectomi SEGI FISIOLOGI :
- N. laringeus sup : motorik & sensorik (penting)- N. laringeus inf : motorik (fx adduksi & abduksi)
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Organ penghasil suara Proteksi jalan napas Respirasi Proses bicara (fonasi) Proses Batuk
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