Anatomy study note · Thorax

Pulmonary valve

The semilunar valve at the exit of the right ventricle into the pulmonary trunk, with three cusps (anterior, right and left).

Key points

• 3 semilunar cusps: anterior, right, left.
• No chordae or papillary muscles.
• Auscultation: 2nd left intercostal space.
• Semilunar valves: truncoconal cushions, 3 cusps each.
• Valve = fibrous core covered by endothelium.
• Rheumatic disease: mitral > aortic.

The full note in the atlas also covers

Features · Histology · Development · Clinical notes

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Written from

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 5, PDF pp. 613–614, 630–633
• Inderbir Singh’s Human Embryology, ch. 15, PDF pp. 241, 244, 246
• BRS Cell Biology & Histology, 7th ed., ch. 11, PDF p. 196

More from the thorax

• Pulmonary veins
• Ribs
• Right atrium
• Right coronary artery
• Right ventricle
• Serratus posterior muscles
• Sternum
• Superior vena cava
• Sympathetic trunk
• Thymus
• Trachea
• Tricuspid valve

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