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anatomy and histology about heart
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Layers of the heart wall
• Endocardium– Endothelium• Simple squamous epithelium• Subendocardial conective tissue
• Myocardium– The thickest layer– Cardiac muscle cells
• Epicardium – Visceral layer of the pericardium– Connective tissue– Adipose tissue
EndocardiumSimple squamous epithelium
Connective Tissue
Smooth muscle
Myocardium
Cardiac Muscle
Intercalated Disc
Epicardium
• Adipose Tissue• Coronary vessels and
cardiac nerves• Mesothelium
Heart Lumen
Endocardium
Myocardium
Pericardial cavity
Epicardium
Sub-epicardial CT
Myocardia
Myocardia
Cardiac Skeleton
• Composed of dense connective tissue• Three main components:
– The annuli fibrosi, formed around the base of the aorta, pulmonary artery, and the atrioventricular orifices
– The trigonum fibrosum, formed primarily in the vicinity of the cuspal area of the aortic valve
– The septum membranaceum, constituting the upper portion of the interventricular septum
• Function:– providing a structural framework for the heart and attachment sites
for the cardiac muscle– provides a discontinuity between the myocardia of the atria and
ventricles ensuring a rhythmic and cyclic beating of the heart
Katup yg terbentuk dr perluasan endokardium
atrium&ventrikel + jar ikat di tengah
Endokardium atrium
Miokardium atrium
Endokardium ventrikel
Miokardium ventrikel
Perluasan subepicardium di atrioventrikular
junction
Heart valves
Musculus Papillaris dan Chorda Tendinae
Musculus Papillaris dan Chorda Tendinae
MCh Te
Musculus Papillaris dan Chorda Tendinae
Ch TeM
Conducting System of the Heart