BIOL 1004 Lecture Notes - Heart Block, Small Cardiac Vein, Systolic Geometry

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28 Jan 2013
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Outline of Lecture 05
Heart
I. Structure of outer layer (coelomic spaces)
- Coelomic sacs are cavities, lined by parietal and visceral serosa, and normally
containing only serous fluid
- Mesentery is the apposition of two serosal membranes, supporting an organ or
gut
- Pericardium is the coelomic sac around the heart
Fibrous pericardium
Serous pericardium
Parietal pericardium
Visceral pericardium (aka epicardium)
Pericardial cavity
II. Structures of the Heart
A. Right Atrium
Inlet vessels (3): inferior vena cava, superior vena cava, coronary sinus
Crista terminalis
Right auricle
Musculi pectinate (aka pectinate muscles) ( primitive atrium)
Sinus venarum
Interatrial septum
Fossa ovalis ( foramen ovale)
SA and AV nodes
Tricuspid valve ( right ventricle)
B. Right Ventricle
Conus arterious (aka infundibulum) ( pulmonary trunk)
Trabeculae carneae
Septaomarginal trabeculae (aka moderator band) ( anterior
papillary muscle)
Papillary muscles
Anterior papillary anterior and posterior cusps of tricuspid
Posterior papillary posterior and septal cusps of tricuspid
Septal papillary anterior and septal cusps of tricuspid
Chordae tendineae
Pulmonary valve ( pulmonary trunk lungs pulmonary veins
left atrium)
C. Left Atrium
Left auricle ( pectinate muscles)
Valvule of foramen ovale
Bicuspid valve (aka mitral valve) ( left ventricle)
Anterior and posterior cusps
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