anatomi dinding abdomen, gaster, intestinum teneu, intestinum krasum
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anatomiTRANSCRIPT
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Anatomi 2Dinding Abdomen,Gaster, Intestinum Teneudan Intestinum Crasum
Kelompok 15Blok GI Tract 2012
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ABDOMEN
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ABDOMEN
Cavitas Abdominis :- Peritoneum- Organ Cerna 1. Gaster (Ventriculus)
2. Intestinum- Hepar- Vesica Biliaris (Fellea)- Pancreas- Splen (Lien)- Ren- Gland. Suprarenalis - Ureter
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Epigastrium
Umbilikal
Suprapubik
Hipokondrium Sinistra
Inguinal Sinistra
Bidang Subcostal
Bidang Transtubercular
Lumbal Sinistra
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Bidang Median
Kuadran Kiri Atas
Bidang Transumbilikal
Kuadran Kiri Bawah
Kuadran Kanan Atas
Kuadran Kanan Bawah
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DINDING ABDOMEN VENTROLATERAL
Batas : - Kranial : Cartilagines Costales VII – XII dan Proc. Xyphoideus- Caudal : Ligamentum Inguinale dan Tulang – Tulang Pevis
Bagian – Bagian : - Kulit- Jaringan Ikat Subkutis- Otot- Fascia- Peritoneum
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Fascia Dinding Abdomen Ventrolateral
Fascia Superficialis (jaringan ikat subkutis) terdiri dari suatu lapis dengan kandunganLemak yang berbeda – beda.
Dibagian caudalnya dibedakan :a). Lembar Superficial (banyak jar. Lemak) “Fascia Camper”b). Lembar Profunda berupa selaput “Fascia Scarpa”
Fascia Transversalis melapisi hampir seluruh dinding abdomen. Fascia ini menutupipermukaan dalam m. transversus abdominis dan aponeurosisnya.
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Otot Dinding Abdomen Ventrolateral
Terdapat : 3 Otot pipih m. obliquus externus abdominis (letak superficial)m. obliquus internus abdominis (lapis tengah)m. transversus abdominis (paling profunda)
1 Otot vertikal m. rectus abdominis (terbungkus dalam vaginae muscullirecti abdominis
a). m. obliquus externus abdominisInervasi: n. Thoracoabdominal (T7 – T11), n. subcostalisFungsi : menekang dan menyokong viscera abdomen, membungkukkan
dan memutar badanb). m. obliquus internus abdominis dan m. transversus abdominis
Inervasi: cab. ventral keenam saraf spinal thoracal tercaudal dan lumbal pertamaFungsi : menekan dan menyokong viscera abdomen
c). m. Rectus abdominisInervasi: cab. ventral keenam saraf spinal thoracal tercaudalFungsi : fleksi batang tubuh dan menekan viscera abdomen
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Saraf Dinding Abdomen Ventrolateral
a). n. intercostales thoracoabdominalisdibentuk oleh cabang ventral keenam saraf thoracal tercaudal (T7 – T11)dan n. Subcostalis (T12) dextra et sinistra.
b). n. cutaneus cabang : ~ T7 – T9 (inervasi kulit kranial dari anulus umbilicalis)
~ T10 (inervasi kulit sekitar anulus umbilicalis)~ T11, T12, dan L1 (inervasi kulit caudal dari anulus umbilicalis)
Saraf Utamaa). n. thoracoabdominalis (T7 – T11)
Asal : lanjutan saraf – saraf intercostal caudalDistribusi : otot abdomen ventral dan kulit diatasnya, bagian perifer diaphragma
b). n. subcostalis (T12)Asal : ramus anterior n. thoracicus XIIDistribusi : m. obliquus externus abdominis tercaudal dan kulit diatas SIAS juga paha
c). n. iliohypogastricus (L1)Asal : ramus anterior n. lumbalis 1Distribusi : kulit daerah hypogastrium dan diatas crista illiaca, m. obliquus
internus abdominis, m. transversus abdominisd). n. Ilio-inguinalis (L1)
Asal : ramus anterior n. lumbalis 1Distribusi : kulit scrotum atau labium majus, mons pubis dan permukaan paha
sekitarnya, m. obliquus internus abdominis dan m. transversus abdominis
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Vaskularisasi
~ A. Epigastrica SupAsal : a. thoracica internaDistribusi : m. rectus abdominis dan dinding abdomen ventrolateral
~ A. Epigastrica InfAsal : a. Iliaca externaDistribusi : m. rectus abdominis dan dinding abdomen ventrolateral
~ A. Circumflexa Iliaca ProfundaAsal : a. Iliaca externaDistribusi : m. Iliacus dan bagian caudal dinding abdomen ventrolateral
~ A. Circumflexa Iliaca SuperficialisAsal : a. femoralis Distribusi : fascia superficialis dan kulit bagian caudal dinding abdomen ventrolateral
~ A. Epigastrica SuperficialisAsal : a. femoralisDistribusi : fascia superficialis dan kulit bagian pubik
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G A S T E R
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GASTER (VENTRICULUS)
- Curvatura Gastrica Minor- Curvatura Gastrica Major- Incisura Angularis- Cardia sekitar muara oesophagus- Fundus Gastricus- Corpus Gastricum- Pars Pylorica- Pylorus
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Hubungan dg Organ Sekitar
• Hubungan Anterior :– Dinding depan abdomen, arcus
costarum kiri, pleura dan paru - paru kiri, diafragma, pars hepatis sinister hepatis
• Hubungan Posterior:– Bursa omentalis, difragma, lien,
sebagian ren kiri, glandula suprarenalis kiri, arteria lienalis, pancreas, mesocolon transversum, dan colon transversum
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Kelenjar - Kelenjar
• Glandula Cardiaca :– Mucin
• Glandula Gastricae :– Pepsin dan Hcl + Fl
• Glandula Pylorica :– Pepsin
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VASCULARISASI
• Truncus Caeliacus (Tripus Halleri) : V.ThXII
• A.Hepatica Communis- A. Gastroduodenalis
• A. Gastroepiploica dextra• A. Panreatico duodenalis superior posterior
- A. Hepatica Propria• A. Gastrica dextra• A. Hepatica Dextra (A. Cystica)• A. Hepatica sinistra
• A. Gastrica Sinistra• R. oesophageal
• A. Lienalis• A. Gastroepiploica sinistra• A. Gastrica brevis• Rr. Pancreatica
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INERVASI :
– Parasimpatis : N. Vagus– Sekresi asam lanbung
– Simpatis : N. splachnicus mayor dan ganglia coeliaca
– Berhubungan dengan N. Spinalis segmenta thoracica 5 dan 6 sehingga rasa nyeri pada gaster dijalarkan dan terasa di epigastrium
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INTESTINUMTENEU
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INTESTINUM TENEU
4 Bagian : – Pars superior– Pars descendens– Pars inferior– Pars ascendens
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• Pars Superior Duodeni
– Dibelakang :• Gastroduodenalis• Ductus Choledochus• V. Porta• Pancreas• V. Cava Inferior
– Dibawah : Caput dan Collum Pancreas
– Didepan :• Lobus Quadratus Hepatis• Collum Vesicae Fellea
– Diatas : Foramen Epiplocum Winslow
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• Pars Descendens Duodeni–Dibelakang :
Ren dexter dan venter dexter–Dimedial :
• Caput Pancreatis• Ductus Choledochus
–Didepan : • Lobus Dexter Hepat• Colon Transversum• Jejenum
–Dilateral : Flexura Colli dextra
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• Pars Inferior Duodeni – Dibelakang :
– M. Psoas– V. Cava Inferior– Aorta
– Dimedial : Jejenum– Didepan :
– A.V. Mesenteric Superior– Radix Mesenterini– Jejenum
– Dilateral : Caput Pancreatis
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• Pars Ascendens DuodeniDibelakang :
-- M. Psoas Kiri dan Aorta
Dimedial:– Jejenum dan Radix Mesosteni
Didepan :– Pancreas dan Collumna Vertebralis
Dilateral :Permulaan Jejenum
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Intestinum tenue : jejenum dan ileum
• Bagian usus halus yang dimulai dari flexura duodenojejunalis sampai ostium ileale (valvula ileocaecalis)
• Panjang dapat mencapai 5-7 meter• Jejenum membentuk 2/5 bagian proximal, ileum
3/5 bagian distal• Melekat pada dinding belakang abdomen dengan
perantaraan radix mesenterii• Sebagian mengisi cavitas abdominis sampai
cavitas pelvis• Jejenum di kiri atas abdomen, ileum di kanan
bawah abdomen
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• PERBEDAAN JEJENUM DAN ILEUM
No Perbedaan Jejenum Ileum
1 Plica Circullaris
Tinggi & Rapat
Pendek & Jarang
2 Diameter Besar Kecil
3 Dinding Tebal Tipis
4 Vasa Recta Panjang Pendek
5 Arcaden 1 – 2 Banyak
6 Lemak Bebas Lemak Mencapi dinding usus
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INTESTINUMCRASUM
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INTESTINUM CRASSUM
• Panjang 1,5 – 2 meter mulai dari ujung ileum sampai anus
• Terdiri dari : caecum, appendix vermiformis, colon ascendens, colon transversum, colon descendens, colon sigmoideum, rectum, dan canalis analis
• Muara ileum ke caecum : Titik Mc Burney• Muara Processus Vermiformis : Titik Lanz
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• Beda colon dengan usus halus–Diameter colon lebih besar–Posisi colon lebih mantap dlm
rongga perut–Punya haustrae, taenia coli,
appendices epiploicae–Mucosa colon berupa plicae
semilunares coli–Tidak punya villi
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Caecum
• Caecum terletak pada fossa iliaca dextra, dapat ditemukan muara ileum
• Pada muara tersebut terdapat valvula bauhini (ostium ileale)
• Pembuluh darah : a. ileocaecalis
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