SYSTEMA CARDIOVASCULARE
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Transcript of SYSTEMA CARDIOVASCULARE
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FUNGSI: MELAYANI MEKANISME TRANSPORT INTERNAL TUBUH
SYSTEMACARDIOVASCULARE
COR VASA
(CARDIUM/JANTUNG) (PEMBULUH DARAH)
Arteria besar Arteria sedang
COR Arteria kecil
Vena besar Arteriola
Vena sedang Kapiler
Vena kecil Venula
• PUSAT KV• POMPA MUSKULER• 2 POMPA: 1. ATRIA
2. VENTRICULI
POMPA HISAP-TEKAN
Diastole Sistole
Relaksasi Kontraksi
SIRKULASI KONTINU
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SYSTEMIC CIRCULATION
PULMONARY CIRCULATION
SYSTEMIC CIRCULATION
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* SIST. TERTUTUP
• TERBENTUK & BERFUNGSI SEBELUM TERBENTUK
ORGAN2 LAIN
• MULAI TERBENTUK: EMBRYO MINGGU KE-4
• BEBAN KERJA BERAT: - 70/MENIT 100.000 X/HARI
• 2,5 MILYAR X DALAM SEUMUR HIDUP(70 TH.)
• DALAM TUBUH: 4-6 L DARAH
• 1 SIKLUS: +/- 1 MENIT
• OUTPUT WAKTU OLAH RAGA: MENINGKAT 5 X
• RATA2 COR MEMOMPA 7.500 L/HARI
SIRKULASI
MAYOR/SISTEMIK MINOR/PULMONER KORONERSIST. KV
MAYOR/SISTEMIK MINOR/PULMONER
SIST. KV
KORONER
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LOKASI/POSISI COR
DI ANTARA 2 PULMO (SINISTER/DEXTER)SEBAGAI SALAH SATU KOMPONEN MEDIASTINUM
(- MASSA JAR. DI ANTARA PLEURA- TERLETAK DI ANTARA STERNUM-COLUMNA VERTEBRALIS)
MEDIASTINUM
SUPERIUS
INFERIUS
ANTERIUS
MEDIUS
INFERIUS
TERLETAK COR
BIDANG*
* Melalui garis antara corpus –manubrium sterni
BATAS COR
STERNOCOSTALIS
FACIES
DIAPHRAGMATICA
SINISTER
MARGO DEXTER
SUPERIOR
INFERIOR
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COR
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BENTUK COR: SEPERTI SEPATU
APEX CORDIS ictus cordis
(Dibentuk oleh: Ventric. sin.
Menuju: ant. – inf.)
BASIS CORDIS
(Menghadap sup.-post.-kanan)
RONGGA COR (4)
ATRIUM(2)
VENTRICULUS(2)
ATRIUM DEXTRUM
ATRIUM SINISTRUM
VENTRICULUS DEXTER
VENTRICULUS SINISTER
SEPTUM INTERATRIALE *
SEPTUM ATRIOVENTRICU-
LARE **
SEPTUM INTERVENTRI-
CULARE
* Ada fossa ovalis For. Ovale (pada jantung fetus)
** Jar. ikat fibrokartilago (sebagai origo otot2/myocardium ventriculus
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VASA BESAR COR
I. ARTERIA BESAR1. TRUNCUS AORTICUS (keluar dari ventric. sin.)
AORTA ASCENDENS ARCUS AORTAE AORTA DESCENDENS
(AORTA THORACALIS AORTA ABODOMINALIS)2. TRUNCUS PULMONALIS (keluar dari ventric. dext.)
A.PULMONALIS (DEXTRA/SINISTRA) (masuk ke pulmo dexter/sinister)
II. VENA BESAR
ATRIUM DEXTRUM
1. V. CAVA SUPERIOR2. V. CAVA INFERIOR
KEPALA/LEHER/EXTR. SUP.BADAN/EXTR. INF.
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Graft/cangkok
v. saphena magna
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VALVULA CORDIS(KATUP JANTUNG)
VALVULA CORDIS• Jar. Ikat kolagen• Keras/kuat/liat
• Mencegah aliran darah balik
(- dari ventric. ke atrium
- dari trunc. aortic./pulmonalis ke ventric.)
VALVULAATRIOVENTRICULARIS (3 Cuspis semilunaris)VALVULA
SEMILUNARIS
VALV. AVDEXTRA
(TRICUSPIDALIS)
VALV. AV SINISTRA
(BICUSPIDALIS/MITRALIS)
3 cuspis (jar. Ikat fibrosa, dilapisi endotel)
2 cuspis)
VALV. SEMILUN.
PULMONALIS
VALV. SEMILUN. AORTAE
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VALVULA CORDIS
Epicardium
Myocardium
Endocardium
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VALVULA CORDIS
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MEKANISME ALIRAN DARAH
4. Valv. AV membuka 8
ATRIUM VENTRICULUS VASA BESAR
1.Kontraksi 8a.Valv. AV menutup 5.Kontraksi
2.M. papillaris relaksasi 6.M. papillaris kontraksi
3.Chordae tendineae kendor 7.Chordae tendineae tegang
PERICARDIUM & DINDING COR (1,2,3)
DARI DALAM KE LUAR:1. ENDOCARDIUM (endotel)
2. MYOCARDIUM (otot jantung)3. EPICARDIUM (Lamina visceralis p. serosa pericardii)
4. PERICARDIUM* Pars serosa pericardii
(lamina parietalis) Pars fibrosa pericardii
CAVITAS PERICARDII (isi: cairan serosa/
pelumas)
* Pericardium: selaput/bungkus jantung
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RONGGA JANTUNG &
ALIRAN DARAH
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DINDING COR &
PERICARDUM
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SIRKULASIKORONER
MYOCARDIUM
A. CORONARIA O2 & NUTRIEN
V. CORONARIA LIMBAH & CO2
SINUS CORONARIUS
ATRIUM DEXTRUM
A. CORONARIA O2/NUTRIEN
V. CORONARIA CO2/LIMBAH
A. CORONARIA
A. CORONARIA DEXTRA A. CORONARIA SINISTRA
R. MARGINALIS R. INTERVENTRIC.POST.
R. CIRCUMFLEXUS R. INTERVENTRIC.ANT.
DINDINGVENTRIC. DEXT DIND. VENTRIC
SIN. & DEXT. POST
DIND. VENTRIC.SIN. POST. DIND. VENTRIC.
SIN. & DEXT. ANT.
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Vaskularisasi cor
Tampak anterior
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Tampak anterior
Bulbus aorticus
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ALIRAN DARAH BALIK(VENOSA) DARI COR
CABANG2A. CORONARIA
SIN.
MYOCARDIUM
V. CARDIACA MEDIA V. CARDIACA MAGNA
SINUS CORONARIUS
TRUNC. PULMONALIS VENTRIC. DEXT. ATRIUM DEXT.
CORV. PULMONALIS(DEXT. & SIN.)
PULMO (+O2)(DEXT. & SIN.)
A. PULMONALIS(DEXT. & SIN.)
CABANG2A. CORONARIA SIN.
MYOCARDIUM
CABANG2A. CORONARIA DEXT.
MYOCARDIUM
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Tampak anterior
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SYSTEMACONDUCTORIUM
• SISTEM YANG MENYELARASKAN (SINKRONISASI) KEJADIAN2 DALAM SIKLUS JANTUNG
• BERASAL DARI OTOT JANTUNG (MYOCYTUS CORDIS) YANG MENGALAMI MODIFIKASI (STRUKTURAL & FUNGSIONAL: TIDAK UNTUK KONTRAKSI) MENJADI SISTEM YANG MENGHANTARKAN
IMPULS2 LISTRIK
• IMPULS BERASAL DARI (1) NODUS SINOATRIALIS (SA)*MENJALAR KE SELURUH OTOT ATRIA KONTRAKSI ATRIA
(2) MENUJU KE NODUS ATRIOVENTRICULARIS (AV)(MENJALAR LAMBAT) (3) TURUN MELALUI BERKAS
ATRIOVENTRICULARIS (BERKAS HISS) MENYEBAR KE SELURUH MYOCARDIUM VENTRICULI KONTRAKSI VENTRICULI
SIKLUS JANTUNG
* Nodus SA: sinoatrialis/sinoauricularis
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Systema conductorium
Berkas Hiss
(Berkas AV)
Serabut Purkinje
Cabang kanan
Cabang kiri
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SYSTEMA CONDUCTORIUM
1. NODUS SA
- SEBAGAI PACEMAKER (penentu irama jantung)
- LETAK: di dinding dorsal atrium dext. (di inferior muara v. cava sup./di superior crista
terminalis)- SIFAT: mempunyai periodisitas intrinsik
tercepat- Dari nodus SA terpancar gelombang kontraksi:
* ke seluruh atria (melalui:lintasan interatrial)
* ke nodus AV (melalui:lintasan internodal)
2. NODUS AV
LETAK:- di dinding septum atrium dextrum
(di posterior perlekatan cuspis septalis valvula tricuspidalis)
- Di superior muara sinus coronarius
BENTUK: oval
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3. BERKAS HISS(ATRIOVENTRICULARIS)
BERKAS KONDUKSI INI BERJALAN:
DARI NODUS AV (melalui saluran di dalam skeleton cordis) mencapai bagian membranosa septum interventriculare
Bercabang:
(1) Ramus dexter (2) Ramus sinister:
(di dinding septum) Berjalan ke anterior pada
trabecula septomarginalis sisi septum musculare
apex ventriculus dexter mm. papillares ventric. sin
mm. papillares
R. Dexter & r. sinister bercabang-cabang halus:
serabut2 Purkinje mm. papillares
Ramus dexter Ramus sinister
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SYSTEMA VASCULARE(SISTEM VASKULER)
HISTOLOGI VASA
ARTERIABESAR
1. TUNICA INTERNA/INTIMA(ENDOTEL + MEMBRAN ELASTIK*)
2. TUNICA MEDIA/MUSCULARIS (OTOT POLOS)SIRKULER (dalam)
LONGITUDINAL (luar)
KONTRAKSI/RELAKSASI BERDENYUT
• JAR. IKAT ELASTIK:ELASTIC COIL SPASME:MENGURANGI PERDARAHAN
(jika terjadi luka pada arteria besar)
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ARTERIOLA- OTOT POLOS: MAKIN SEDIKIT- MENGANDUNG SER.2 ELASTIK
- VASOKONSTRIKSI/VASODILATASIMENGATUR ALIRAN DARAH KE KAPILER
1. ARTERIA BESAR
(A. ELASTICA/CONDUCTING ARTERY)
Serabut2 elastik > otot polos
Contoh: aorta, a. brachiocephalica, a. carotis communis, a. subclavia,
a. vertebralis, a. iliaca communis
2. ARTERIA SEDANG
(A. MUSCULARIS/DISTRIBUTING ARTERY)
Otot polos > ser.2 elastik
Contoh: a. axillaris, a.brachialis, a. radialis, a. femoralis, a. poplitea,
a. tibialis
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Vena
Valvula
Venula
Anastomosis
arteriovenosa
Metarteriola
Sphincter precapillaris
Arteriola
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ANYAMAN KAPILER(MENGHUBUNGKAN ARTERIOLA-VENULA
* AKTIVITAS METABOLIk TINGGI KAPILER BANYAK(OTOT, HEPAR, REN, PULMO, SIST. SARAF)
* AKTIVITAS METAB. RENDAH KAPILER SEDIKIT• CORNEA, EPIDERMIS, CARTILAGO: ( - )
ENDOTEL: KONTINU• KAPILER
ENDOTEL: FENESTRATA
HEPAR/LIEN/ADENOHYPOPHYSIS/
GLAND. PARATHYROIDEA/CORTEX ADRENALIS:
SINUSOID(pelebaran vena:
lebih lebar, berkelok2)
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INERVASI COR INTRINSIK: SYST. CONDUCT.EKSTRINSIK: SS OTONOMIK
INERVASI COREKSTRINSIK (OTONOMIK)
MEDULLA OBLONGATAPUSAT PARASIMP. PUSAT SIMP.
(PUSAT KARDIOINHIBITORIS) (PUSAT KARDIOAKSELERATORIS)(CIC: CARDIOINHIBITORY CENTER) (CAC: CARDIOACCELERATORY CENTER)
MED. SPIN.
NODUS AVNODUS SA
MYOCARDIUM
KECEPATAN DJKEKUATAN DJ
N. cardiacus: NE
N X: ACh
DJDENYUT JANTUNG
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Inervasi ekstrinsik sist. KV
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CIC CAC
SEIMBANG
INPUT (IMPULS2 SENSORIS)
RESEPTOR (PADA VASA):
BARORESEPTOR/VASORESEPTOR
REFLEKS1. SINUS CAROTICUS
2. AORTICUS3. ATRIAL
Baroreseptor Tekanan darah
Vasoreseptor Dilatasi vasa
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REFLEKSSINUS CAROTICUS
SINUS CAROTCUS*
TEKANANDARAH * MED. OBL
(-) (+)CAC CIC
COR
KECEPATAN KONTRAKSIKEKUATAN KONTRAKSI
CARDIAC OUTPUT
TEK. DARAHARTERIAL
TEK. DARAHKE ARAH NORMAL
*SIN. CAROT.:Letak: di percabangan
a. caroticus communis menjadi a. carot. externus & internus
* Jika tek. darah Proses: sebaliknya
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KEMORESEPTOR: AORTICUS
GLOMUS/CORPUS CAROTICUS
MED. OBL.
N IX
N X
Glom. Aortic.
Glom. Carotic.
BARORESEPTOR* : AORTICUS
SINUS CAROTICUS
MED. OBL.
SIN. CAROTIC.
N. HERING
N IX
SIN. AORTIC.* Akhiran saraf
menyebar(spray)di dinding arteria
A.carot. ext.
A. carot. int.
A. Carotis comm.
Arcus aortae
N X
CO2/O2
TEK. DARAH
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REFLEKSAORTICUS
(Refleks Bainbridge)
TEK. DARAHSISTEMIK UMUM
BARORESEPTOR(di arc. Aortae)
TEK. DARAHVENOSA
CAC KEC./KEKUATANDENYUT JANTUNG
VOL. DARAHKELUAR COR
(+)
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COR MESODERMA
2 TUBA ENDOCARDIALIS
TUBA PRIMITIVA CORDIS
5 REGIO
1. BULBUS CORDIS 2. JANTUNG TUMBUH LEBIH CEPAT DP.
VENTRICULUS PERLEKATAN DI SUP.ERIOR
ATRIUM & SIN. VENOSUS BENTUK S BENTUK U
PERKEMBANGANCOR
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OKLUSIKORONER
OKLUSI KORONERSERANGANJANTUNG
MATI
ATHEROSCLEROSIS
ATHEROMA
PENYAKITDEGENERATIF
DEPOSISI FIBROTIK LEMAKDI DINDING A. CORONARIA
1. KERUSAKAN SEL2 ENDOTEL MULTIPLIKASI MENONJOLKAN ENDOTEL KE PERMUKAAN
2. DEPOSISI AS. LEMAK (KOLESTEROL) DI DALAM/SEKITAR TONJOLAN SEL2 OTOT POLOS
KERUSAKAN FIBROTIK LEMAK (PLAK ATEROSKLEROTIK)
MENYEMPITKAN LUMEN ARTERI
MENGHAMBAT ALIRAN DARAH
ATHEROSCLEROSIS
TAHAP
AWAL
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ATHEROSCLEROSIS (lanj.)
TAHAP
AKHIR
KALSIFIKASI PLAK + KALSIFIKASI
JAR. FIBROSA
ARTERIOSCLEROSIS(PENGERASAN ARTERI)
(progresif)
ATHEROSCLEROSIS HEART DEBILITY
1. PROSES KRONIK
PENYEMPITAN A. CORONARIA PROGRESIF PASOK DARAH COR
OKLUSI (1/> A. CORONARIA CORONARY RESERVE
PROSES KRONIK
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2. PROSES AKUT
OKLUSI KORONER AKUT HEART ATTACK
A. CORONARIA: PLAK ARTERIOSKLEROTIK
MENONJOL KE LUMEN (PERMUKAAN: KASAR)
DARAH YANG MENGALIR: MENJENDAL
( dalam bbrp. jam) JENDALAN DARAH LEPAS (EMBOLI)
(ikut aliran darah) MENYUMBAT CABANG2 KECIL OKLUSI TOTAL (dalam bbrp. detik)
OKLUSI KORONER AKUT
OTOT2 COR ISKEMIK OTOT2 COR NONFUNGSIONAL
(1) (meluas: area luas) (bbrp. detik) MATI
(2) (area sempit) PARTIAL CARDIAC DEBILITY
DAPAT RECOVERY (PARTIAL/TOTAL)
(minggu-bulan) PELEBARAN A. CORONARIA LAIN (kadang2 tumbuh vasa2 kecil ke area otot yang rusak)
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PENY. JANTUNGKONGENITAL
GANGGUAN SIRKULASIPULMONER
“BLUE BABY”
1. FOR. OVALE (PADA SEPTUMINTERATRIALE) TIDAK MENUTUP
2. DUCTUS ARTERIOSUS (BOTALI)PATEN (TIDAK MENUTUP)
3. TETRALOGI FALLOT:(1) DEFEK SEPTUM INTERVENTICULARE
(2) KONSTRIKSI A. PULMONALIS(3) AORTA PINDAH KE KANAN
(4) HIPERTROFI VENTRICULUS DEXTER
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SUARA JANTUNG