Anatomi Arthrologi
Transcript of Anatomi Arthrologi
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SENDI
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Tujuan Instruksional
Menerangkan kategori umum, struktur dan fungsi persendian
Menerangkan struktur dasar persendian
Menerangkan pegerakan dinamik dari tulang
Menerangkan tipe persendian dengan karakteristik gerakannya dihubungkan dengan struktur anatominya.
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SENDI
Sendi adalah semua persambungan tulang, baik yang memungkinkan tulang tsb dapat bergerak satu sama lain, maupun tidak.
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KLASIFIKASI SENDI
1. SINARTROSISadl persendian yang tidak dapat digerakkan (immovable joint). Permukaan tulang hampir kontak langsung, hanya dikaitkan oleh jar ikat atau kartilago hialin.Tdr dr : sutura, gomfosis, sinkhondrosis dan sinostosis.
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KLASIFIKASI SENDI
2. AMFIARTROSISPada persendian ini dapat bergerak sedikit. Tulang dihubungkan dengan serat kolagen atau kartilago.Terdiri dari : sindesmosis dan simfisis
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KLASIFIKASI SENDI
3. DIARTROSISDisebut juga persendian sinovial, pergerakan lebih luas dibanding persendian lain. Persendian ini dikelilingi kapsul persendian fibrus dan membrana sinovial yang melapisi ruang persendian. Ruang persendian terisi cairan sinovial.
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DIARTROSIS
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DIARTROSIS…rawan sendi Pd sendi sinovial, tlg yg saling
berhubungan dilapisi rawan sendi Rawan sendi (avaskular & no
saraf) berfungsi sbg bantalan Rawan sendi dibentuk oleh
kondrosit (sintesis & pelihara matriks) & matriks rawan sendi (ta. air, proteoglikan & kolagen)
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DIARTROSIS…membran sinovial Membran sinovial (jar avaskular lapisi
permukaan dalam kapsul sendi) Tersusun 1 – 3 lapis sel sinovial
(sinoviosit) A & B Sinoviosit A (makrofag) lepaskan
debris sel ke dlm rongga sendi Sinoviosit B (fibroblas) sintesis &
sekresi hialuronat yg berperan dlm lubrikasi
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DIARTROSIS…
Cairan sendi mrp ultrafiltrat plasma Pada umumnya kadar molekul & ion
kecil dal cairan sendi sama dengan plasma, tetapi kadar proteinnya lebih rendah
Ligamen & kapsul sendi tersusun oleh serat kolagen, elastin & proteoglikan
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KLASIFIKASI SENDI
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KLASIFIKASI SENDI
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FAKTOR STABILITAS SENDI
1. Serat kolagen pd kapsul sendi dan ligamentum baik intra maupun ekstra kapsuler.
2. Bentuk permukaan sendi yang melindungi pergerakan pd arah yang spesifik.
3. Adanya tulang, otot skeletal atau bantalan lemak sekitar sendi.
4. Tegangan tendon yang melekat pd tulang persendian.
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MACAM PERGERAKAN
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GLIDING MOVEMENT
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ANGULAR MOTION
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ANGULAR MOTION
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CIRCUMDUCTION
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ROTATION
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GERAK KHUSUS
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GERAK KHUSUS