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BLOOD FLOW
SVC,IVC,CS -- >RT ATRIUM -- > TRICUSPID VALVE -- > RT VENTICLE -- > PULMUNARY SEMILUNAR VALVE -- > PULMUNARY TRUNK -- > RT PULMUNARY -- > LUNGS -- > PULMUNARY VEINS -- > LT ATRIUM -- > BICUSPID VALVE -- > LT VENTRICLE -- > AORTIA SEMILUNAR VALVE -- > AORTA -- > (HEART/REST OF BODY) -- >SVC, IVC, CS.
 APEX
MIDCLAVICULAR AT 5TH INTERCOSTAL (B/W 5 & 6) – closest in the outside left
* POINT OF MAXIMAL INTENSITY (PMI)
PERICARDIUM
FIBROUS PERICARDIUM
SEROUS PERICARDIUM
FIBROUS PERICARDIUM
though outer layer. Dense CT. to protect. Achor and prevent over laying
SEROUS PERICARDIUM
1.PARIETAL PERICARDIUM
2. VISCERAL PERICARDIUM3. PERICARIAL CAVITY friction rubs.
LAYERS OF THE HEART WALL
EPICARDIUM
MYOCARDIUM
EDOCARDIUM
MYOCARDIUM
CARIDAC MUSCLE
FIBROUS SKELETON OF THE HEART
ATRIA
superior chamber of the heart, receive incoming blood into the body
STRUCTURE IN ATRIA
INTERATRIAL SEPTUM
AURICLE
PECTGINATE MUSCLE
FOSSA OVALIS
INTERATRIAL SEPTUM
divide arterial into left and right side
AURICLE
shape like pig ears. Increase vol of atria
PECTGINATE MUSCLE
reggies inside apetenum
FOSSA OVALIS
left over scar the runs b/w 2 atrium
VEINS ENTERING ATRIA
RIGHT ATRIUM
LEFT ATRIUM
RIGHT ATRIUM
SUPERIOR VENA CAVA
INFERIOR VENA CAVA
CORONARY SINUS
SUPERIOR VENA CAVA
bring O2 pure blood from body above diaphragm
INFERIOR VENA CAVA
bring O2 below diaphragm
CORONARY SINUS
from heart it self
LEFT ATRIUM
4 PULMONARY VEIN
4 PULMONARY VEIN
bring rich blood from the lungs
VENTRICLES
main pumping chamber
VENTRICLES sx
1.INTERVENTRICULAR SEPTUM
2.TRABECULAE CARNEA
3.PAPILLARY MUSCLES
INTERVENTRICULAR SEPTUM
divide left and right  ventricle
TRABECULAE CARNEA
muscle reggies
PAPILLARY MUSCLES
projection provide tension and anchor heart valve
arteries leaving ventricles
-RIGHT VENTRICLE
-LEFT VENTRICLE
RIGHT VENTRICLE
-take poor blood into the lungs
*PULMONARY TRUNK
LEFT VENTRICLE
-take rich blood into the body
* AORTA
ATRIVENTRICULAR GROOVE
CORONARY SULCUS – b/w atrial and ventricle
ANTERIOR INTERVENTRICULAR SULCUS
front
POSTERIOR INTERVENTRICULAR SULCUS
BACK
BLOOD FLOW THROUGH THE HEART
-PULMONARY CIRCUIT
-SYSTEMIC CIRCUIT
PULMONARY CIRCUIT
– pump blood from heart to the lungs then back to the lungs
*RIGHT SIDE OF HEART – harder job
SYSTEMIC CIRCUIT
– PUMP BLOOD FROM HEART TO THE BODY THEN BACK TO THE HEART
HEART VALVES
1.ATRIOVENTRICULAR (AV) VALVES
2.SEMILUNAR (SL) VALVES
ATRIOVENTRICULAR (AV) VALVES
- b/w atrial and ventricle – flow one direction
1.TRICUSPID VALVE (RT)
2.BICUSPID VALVE (LT)
TRICUSPID VALVE (RT)
3 CUSPID  - better
BICUSPID VALVE (LT)
MITRAL – 2 CUSPID         v-shop shape hat (fail a lot)
CHORDAE TENDINAE
cord attach into AV – valve(prevent back flow of blood) re-inforce av valve and close by BP
SEMILUNAR (SL) VALVES
-  ventricle and vessel leave in the heart
A. AORTIC SEMILUNAR VALVE
B. PULMONARY SEMILUNAR VALVE
AORTIC SEMILUNAR VALVE
– b/w Lt ventricle and aorta
PULMONARY SEMILUNAR VALVE
– rt ventricle and pulmonary trank.
VALVULAR STENOSIS
–valve become stiff from scar tissue. (endocarditis bacteria)  
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