cardiovascular system kel.10.ppt
TRANSCRIPT
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Letak•Di dalam Pericardium di rongga mediastinum dalam rongga Thorax •Tepat di belakang tulang dada ( sternum )•2/3 jantung terletak pada sebelah kiri linea mediana•Besar : sesuai dengan kepalan tangan
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Lapisan jantung :1.Pericardium :merupakan selaput dua lapis yang menyelimuti jantung (parientalis dan viseralis). Diantara pars parientalis dan visceralis terdapat cavum pericardii2. Myocardium : merupakan lapisan otot yang
membentuk jantung3. Endocardium : lapisan endotelium yg
membentuk permukaan paling dalam dari miocardium
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Ruang –ruang jantung :1. Atrium dextra2. Atrium sinistra3. Ventriculus dextra4. Ventriculus sinistra
Struktur lain :•Septum interatriale (memisahkan atrium dextra dan atrium sinistra)•Septum interventriculare (memisahkan ventrikel dextra dan ventrikel sinistra)•Sulcus: lekukan yg merupakan batas externa dari ruangan jantung.•Sulcus Coronarius : Batas antara atrium dan ventrikel •Sulcus Interventricularis : Batas antara ventrikel Dextra dan Sinistra
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Katup Jantung1.Valva tricuspidalis / atrioventricularis dibagian dextra2.Valva bicuspidalis / valva mitrale dibagian sinistra3.Valva trunci pulmonalis4.Valva aortaeStruktur lain:•Chorda tendinea•M. Pectinacus•Ostium vena cava superior et inferior•Ostium sinus coronarius
Pendarahan jantungJantung mendapatkan darah dari arteri coronaria yang berasal dari aorta ascendens
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Perubahan struktur dari masa fetal1.Foramen ovales -> Fosa ovalis2.Ductus arteriosus -> Ligamentum arteriosum botalil3.Arteri umbilicalis -> Ligamentum umbilicalis lateralis4.Ductus venosus -> Ligamentum arantil
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Aplikasi klinis •Penyakit jantung koroner•Decompasatio cordis : gagal jantung•Infark micocardium•Penyakit jantung bawaan : Pantent Ductus Arteriosus Septal Defect, Atrial Septal Defect
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Fungsi pembuluh darah :Menyalurkan darah yang mengandung oksigen ke sel dan jaringan dan mengembalikan darah vena ke paru-paru untuk pertukaran gas.
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1.ARTERI Pembuluh darah yang keluar dari jantung terdiri atas
arteri pulmonalis dan aorta.
• Aorta : arteri berukuran besar yang langsung keluar dari jantung menuju ke seluruh tubuh
Dibagi menjadi
Aorta ascendens Arcus aortae Aortadescendens
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2. VENA Pembuluh darah balik (vena) yang masuk ke dalam atrium jantung ialah
a.Vena cava superiorb.Vena cava coronariusc. Sinus coronariusd. Vena pulmonalis
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1. Sirkulasi besar (sistemik), bertugas untuk menyalurkan darah ke seluruh tubuhatrium sinistra -> ventriculus sinistra -> aorta -> arteri -> arteriola -> kapiler -> venula -> vena -> vena cava superior et inferior -> atrium dextra
2. Sirkulasi kecil (pulmonal), bertugas pada pertukaran gas atrium dextra -> ventriculus dextra -> arteri pulmonalis -> kapiler -> vena
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Aorta ascendens
Arcus aorta
A.subclavia
A. axillaris
A.brachialis
A. ulnaris A. radialis A. Profunda brachii
Arcus palmaris superficialis et profunda
Aa. digitales palmares comunis
Aa. digitales palmares propriae
1. Arteri
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• Aplikasi klinis Arteri brachialis -> untuk mengukur tekanan
darahArteri radialis dan arteri ulnais -> untuk analisis
gas darah
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Vv. digitales
Arcus palmaris superficialis Arcus palmaris profunda
V.cephalica V.basilica
V.Mediana cubiti
V. radialis V. ulnaris
V. brachialis
V. axilaris
V. vertebralis V. subclavia V. Jugularis interna et externa
Truncus brachiocchepalicus
V. Cava superior
2. Vena
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• Aplikasi klinisVena mediana cubiti sebagai lokasi sampel
darah vena
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A. Iliaca communis
A. Iliaca interna A. Iliaca eksterna
Organ genitalia A. femoralis
A. poplitea
A. Tibialis anterior A. Tibialis posterior
A. Dorsalis pedis A.fibularis
A. Plantaris laterle dan medial
1. Arteri
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• Aplikasi klinisArteri popliteal untuk mengukur denyut nadi
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2. VenaVv. Digitalis dorsalis pedis Vv. Digitalis plantaris pedis
Arcus venosusdorsalis pedis Arcus venosusplantaris pedis
V. Marginalis medialis V. Marginalis laceralis V. Tibialis anteriorV. Tibialis poterior
V. fibularis
V. Saphena magna
V. Saphena accesoria
V. poplitea
V. Femoralis profunda
V. Saphena parva
V. femoralis
V. Illiaca externa V. Illiaca interna
V. Illiaca communis
V. Cava inferior
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• Aplikasi klinis Saphena magna : operasi by pass jantung dan
infus dan extremitas inferior