558
UNIT FOUR
Superior vena cava
Pulmonary valve
Right pulmonary
artery
Right pulmonary
veins
Right atrium
Inferior vena cava
(a)
Right ventricle
Tricuspid valve
Interventricular
septum
Left ventricle
Papillary muscle
Chordae tendineae
Mitral (bicuspid) valve
Left atrium
Left pulmonary
veins
Pulmonary trunk
Left pulmonary
artery
Aorta
Superior vena cava
Aortic valve
Right pulmonary
artery
Right atrium
Inferior vena cava
(b)
Right ventricle
Tricuspid valve
Opening of coronary
sinus
Interventricular
septum
Left ventricle
Papillary muscle
Chordae tendineae
Mitral (bicuspid)
valve
Left atrium
Left pulmonary
veins
Pulmonary trunk
Left pulmonary
artery
Aorta
Right pulmonary
veins
(c)
FIGURE 15.6
Frontal sections of the heart. (
a
) Drawings show the connection between
the right ventricle and the pulmonary trunk and (
b
) the connection between the left
ventricle and the aorta, as well as the four hollow chambers. (
c
) A cadaver heart.
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