Heart and Pericardium

Assoc. Prof. Jenny Hayes

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Objectives • The arrangement of the fibrous and serous layers of

pericardium • The major anatomical features of each chamber of the heart

and their functional significance • The structure and position of the atrioventricular and semilunar

valves and their role in prevention of regurgitation • The origin, course and main branches of the coronary arteries

and the functional consequences of their obstruction

Suggested pre-reading Gray’s Anatomy for Students: Regional anatomy of Middle mediastinum, Chapter 3, Thorax, p. 177-204, 2nd ed. OR Clinicall y Orientated Anatomy, Moore: Overview of Mediastinum, Pericardium and Heart, Chapter 1, Thorax, p.127-159, 6th ed.

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #200

Heart in pericardial sac

diaphragm

Moore K L. Clinically Oriented Anatomy. 2nd ed. Williams and Wilkins; 1985. ISBN 0683061321. Ch.1 Page54

Moore K L. Clinically Oriented Anatomy. 2nd ed. Williams and Wilkins; 1985. ISBN 0683061321. Ch.1 Page55

Moore K L. Clinically Oriented Anatomy. 2nd ed. Williams and Wilkins; 1985. ISBN 0683061321. Ch.1 Page 60

Moore K L. Clinically Oriented Anatomy. 2nd ed. Williams and Wilkins; 1985. ISBN 0683061321. Ch.1 Page 61

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #208A

Inferior vena cava

Superior Vena Cava

thin wall

Coronary sinus

Tricuspid valve between R atrium and R ventricle

musculi pectinati

crista terminalis

sinus venarum

fossa ovalis

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #208B

thicker wall

tricuspid valve

pulmonary trunk

pulmonary valve

trabeculae carnae

conus arteriosus or infundibulum

papillary muscle

chordae tendinae

moderator band

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #209B

left ventricle has thickest wall of all

left atrium

pulmonary veins

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #210B

fibrous skeleton :1 anchors atrial and ventricular muscle masses & electrically isolates them &2 provides attachment for base of each valve cusp

2 rings

2 coronets 2 trigones

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #210B

tricuspid valve: anterior cusp septal cusp posterior cusp

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #208B

cusp

chordae tendinae

papillary muscle

Moore K L. Clinically Oriented Anatomy. 2nd ed. Williams and Wilkins; 1985. ISBN 0683061321. Ch.1 Page72

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #210A

pulmonary valve

aortic valve

a L

R

L R p

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #210B

pulmonary valve

aortic valve

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #211A

origin of R coronary artery

aortic sinus

R cusp of aortic valve

origin of L coronary artery

aortic sinus

L cusp of aortic valve

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #213A

SA node

AV node bundle of His

R bundle branches

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #213B

L bundle branches

Netter, F.H. Interactive Atlas of Human Anatomy. 3rd ed. New Jersey, Icon Learning Systems, 2003, ISBN: 1-929007-15-9, Plate #214

The cardiac plexus is situated at the base of the heart and is divided into a superficial and deep part. It receives branches from the vagus and sympathetic trunks.

Moore K L. Clinically Oriented Anatomy. 2nd ed. Williams and Wilkins; 1985. ISBN 0683061321. Ch.1 Page57

Moore K L. Clinically Oriented Anatomy. 2nd ed. Williams and Wilkins; 1985. ISBN 0683061321. Ch.1 Page 83

Moore K L. Clinically Oriented Anatomy. 2nd ed. Williams and Wilkins; 1985. ISBN 0683061321. Ch.1 Page 83

Moore K L. Clinically Oriented Anatomy. 2nd ed. Williams and Wilkins; 1985. ISBN 0683061321. Ch.1 Page 65

Relevant museum specimens displayed in the Thorax Bay (beneath windows) • 516-100229, a series of foetal hearts • 516-100225,oblique section through heart of child, aged 18months • 516-102474 , dissection of the heart and airways • 516-100234 , a heart • 516-100107, right atrium and ventricle exposed • 516-100108, interior of left ventricle • 516-100220, a dissection of left ventricle • 516-100223, sections of the heart • 516-100215, a dissection of right ventricle • 516-102487 & 102488, human aortic valve • 516-500001, resin cast • 516-100207, heart-in-situ (plinth) • 516-102491, heart with coronary arteries dissected Images and information on these specimens can also be accessed via the museum database: http://mdhs.unimelb.edu.au/harrybrookesallenmuseum/catalogue There are also plastinated and model hearts available on the shelving. An excellent pre-workshop and pre-dissection resource is Acland’s anatomy:

http://www.aclandanatomy.com.ezp.lib.unimelb.edu.au/