Download - Cardiovascular
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SISTEM KARDIOVASKULER
DEPARTMENT OF ANATOMYHASANUDDIN UNIVERSITY
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DINDING THORAX
Dibentuk oleh : kulit fascia / otot Tulang
Terdapat glandula mammae.
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• LOKALISASI : antara Costa II – Costa VI, di medial tepi sternum, dilateral mencapai Linea axillaris
• Struktur : kelenjar, fat dan jaringan ikat
MAMMA
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OTOT-OTOT DINDING THORAX
• M. Serratus posterior superior
• M. Serratus posterior inferior
• M. Intercostalis Externus• M. Intercostalis Internus• M. Subcostalis• M. Transversus thoracalis
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SKELETON DINDING THORAX
• Ventral : - Sternum - Costae I – XII• Dorsal :
Vertebra Thoracalis I – XII
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LINEA PADA DINDING THORAX
Linea mediana anterior (ventralis) Linea sternalis Linea mammilaris (=linea
medioclavicularis) Linea parasternalis Linea axillaris
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• LINEA MEDIANA VENTRALIS (ANTERIOR)
Garis tegak yang membagi sternum menjadi 2 bagian yang simetris
• LINEA STERNALIS
Garis yang sejajar dengan Line mediana anterior yang melalui tepi sternum
• LINEA MAMMILARIS
Garis yang melalui papilla mammae atau garis yang sejajar dengan Linea mediana anaterior yang melalui pertengahan clavicula
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• LINEA PARASTERNALIS
Garis yang terletak ditengah-tengah antara Linea mediana anterior dan Linea mammilaris
• LINEA AXILLARISGaris yang ditarik mulai dari lipatan ketiak
(axilla) anterior medialis posterior
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MEDIASTINUM
• MEDIASTINUM SUPERIUS
• MEDIASTINUM INFERIUS :
MEDIASTINUM ANTERIUSMEDIASTINUM MEDIUMMEDIASTINUM POSTERIUS
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THE CONDUCTING SYSTEM
• nodus sinuatrialis (= keith-flack)
• nodus atrioventricularis (= aschoff-tawara)
• fasciculus atrioventricularis
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COR(=Cordis, kardia ,jantung)
• Organ muscular
• Bentuk “conus”, sebesar kepalan tinju
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LETAK• Diantara ke-2
pulmo• Di atas
diaphragma• Menempati
mediastinum medius
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Location in Thorax
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Pericardium Serous membrane
lining the pericardial cavity
Analogous to a fist in a balloon
Subdivided into visceral and parietal pericardium
Visceral layer (brown arrow) is the outer layer of the heart itself – a.k.a. the epicardium
Parietal layer (red arrow) lines the inner portion of the pericardial sac and is deep to a meshwork of collagen fibers that stabilize the position of the heart
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Pericardium Space btwn the visceral &
parietal layers is the pericardial cavity. Normally contains 10-
20mL of pericardial fluid secreted by the membranes
A variety of pathogens may infect the pericardium, causing pericarditis.
Pericardial irritation and inflammation results in an in pericardial fluid production which limits the movement of the heart. Known as cardiac tamponade.
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MORFOLOGI COR
• Basis cordis• Facies sternocostalis• Facies sinister • Facies diaphragmatica
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Posisi :• Basis di cranial• Apex di caudal• 2/3 bagian di kiri linea
medianaSumbu cordis :• Dari basis ke apex• Miring dari craniodorsal
ke caudoventral
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APEX CORDIS•Bagian ventriculus sinister
•Letak :Ruang intercostalis 5 kiri
9 cm dari linea mediana
2 jari medial linea medioclavicularis sinistra
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BASIS CORDIS
• Di cranialis : arah craniodorsal kanan
• Dibentuk oleh: - Sebagian atrium sinistra dan
dextra - Bagian proximal: Pembuluh darah
besar
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Cor dewasa: Ukuran : p = 12 cm,
L = 8-9 cm, T = 6 cm Berat : Pria: 280-340
gr , Wanita= 230-280 gr
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Dinding 3 lapis: Epicardium (luar) Myocardium
(tengah) Endocardium
(dalam)
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Gross Anatomy of Heart: Frontal Section
Figure 18.4e
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BAGIAN-BAGIAN COR
• atrium dextra• atrium sinister• ventriculus dexter• ventriculus sinister
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ATRIUM DEXTER• lebih besar dari sinister• dinding tipis• 2 bagian : Sinus
venorum & auricula dextra
• Terdapat auricula dexter
Bermuara :- Vena cava superior- Vena cava inferior- Sinus coronaries
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Blood Flow back to the Heart
Blood high in CO2 and low in O2 arrives at the RA from 3 vessels: Superior Vena Cava
• Drains head, upper torso, and arms
Inferior Vena Cava • Drains abdomen,
pelvis, and legs Coronary Sinus
• Drains coronary circulation
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AURICULA DEXTRA: Bentuk kantong Permukaan dalam kasar akibat
tonjolan serabut otot-otot (MUSCULI PECTINATI)
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ATRIUM SINISTER
Terdapat auricula sinistra
Bermuara vena pulmonalis
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Sisa FORAMEN OVALE(FOSSA OVALIS)
Antara Atrium Sinister & Dextra
Terdapat SEPTUM INTERATRIORUM (=septum atriorum)
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VENTRICULUS DEXTER• Ostium atrioventriculare
dexter dengan 3 katup (VALVULA TRICUSPIDALIS)
• Chordae tendinae• Trabeculae carnae• M. papillaris• Terdpt pangkal A.
Pulmonalis
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Valves Semilunar Valves:
• Pulmonary Semilunar Valve• Prevents backflow of blood from pulmonary artery into
RV
• Aortic semilunar valve• Prevents backflow of blood from aorta into LV
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VENTRICULUS SINISTER
• membentuk apex cordis• dinding 3 x lebih tebal• Ostium Atrioventriculare sinister 2
katup (VALVULA BICUSPIDALIS = VALVULA MITRALIS)
• Chordae tendinae• Trabeculae carnae• M. papillaris
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Atria have thin flaccid walls corresponding to their light workload. Why is it light?
Right and left atria are separated by the interatrial septum.
RA and both auricles exhibit internal ridges of myocardium called pectinate muscles.
The thick interventricular septum separates the LV and RV.
LV is 2-4x as thick as the RV because of its large workload.
Both ventricles exhibit internal muscular ridges known as trabeculae carneae
LV
RV
SEPTUM
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AORTA AORTA ASCENDENS:
mempercabangkan a.coronaria sinistra dan a.coronaria dextra
ARCUS AORTA AORTA DESCENDENS (=AORTA
THORACALIS) Melanjutkan diri menjadi ARTERI
ABDOMINALIS
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Aorta ascendens
Arcus aortaAorta descendens
Arteri Anonyma
a.Carotis communis sinistra
a.Subclavia sinistra
a.Coronaria dextraa.Coronaria sinistra
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ARCUS AORTA
a. anonyma (=truncus brachiocephalicus)
a. carotis communis sinistra a. subclavia sinistra
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A. ANONYMA
BERCABANG MENJADI:
A. CAROTIS COMMUNIS DEXTRA A.SUBCLAVIA DEXTRA
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CIRCULASI SISTEMIK ALIRAN DARAH ARTERI : dinding otot polos,
berdenyut VENA : dinding tipis, valvula COR – AORTA – ARTERI – ARTERIOLE
– CAPILER – JARINGAN capiler – venule – vena – vena
cava superior et inferior-cor
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VENTRICULUS SINISTER
Aorta ascendens – arcus aortae – aorta descendens (= aorta thoracalis ) – aorta abdominalis – arteria iliaca communis – a.iliaca interna-a.ilica externa – a.femoralis – a.poplitea – a.tibialis anterior – a.tibialis posterior – a.dorsalis pedis
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ALIRAN DARAH VENA :
EXTREMITAS INFERIOR : vena saphena magna-v.saphena parva – v.femoralis – v.iliaca – vena cava inferior
EXTREMITAS SUPERIOR : v.cephalica, v.ulnaris-v.radialis – v.brachialis – v.axillaris-v.subclavia
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CIRCULASI PULMONAL ventriculus dexter arteria pulmonalis pulmo vena pulmonalis atrium sinistrum Pergantian Karbon dioksida dengan
Oksigen ( darah – eritrosit )
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Basic Pathway of Blood Flow
SVC
IVC
CS
Right Atrium
Tricuspid Valve
Right Ventricle
Pulmonary Semilunar
Valve
Pulmonary Trunk
Pulmonary Arteries
Pulmonary Capillaries
Pulmonary Veins
Left AtriumBicuspid
Valve
Left Ventricle
Aorta
Aortic Semilunar Valve
Systemic Capillaries
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CIRCULASI CORONER
vascularisasi myocardium a.coronaria dextra et sinistra v.cordis sinus coronarius atrium dextrum
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Coronary Circulation Why does the heart require a prodigious
amt of O2 and nutrients? Cardiac muscle is not nourished to any
extent by the blood flowing thru its chambers, so it has its own network of arteries, capillaries, and veins – the coronary circulation
5% of circulating blood is delivered to the heart
After the aorta emerges from the LV it gives off 2 branches, the left & right coronary arteries
The coronary circulation has many anastomoses – where 2 arteries come together and combine their blood flow. What is the advantage to this?
Blockage of coronary arteries causes ischemia – a loss of blood flow. Temporary and reversible ischemia produces a sense of pain known as angina pectoris. Prolonged coronary blockage can lead to myocardial cell death - a myocardial infarction (a.k.a., heart attack or coronary)
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After blood passes thru the coronary capillaries, it enters coronary veins which combine to form the coronary sinus which empties into the RA
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a.Coronaria dextra a.Coronaria sinistra
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Vena cordisSinus coronarius
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