Pulmonary valve

	WikiDoc Resources for Pulmonary valve
Articles
Most recent articles on Pulmonary valve Most cited articles on Pulmonary valve Review articles on Pulmonary valve Articles on Pulmonary valve in N Eng J Med, Lancet, BMJ
Media
Powerpoint slides on Pulmonary valve Images of Pulmonary valve Photos of Pulmonary valve Podcasts & MP3s on Pulmonary valve Videos on Pulmonary valve
Evidence Based Medicine
Cochrane Collaboration on Pulmonary valve Bandolier on Pulmonary valve TRIP on Pulmonary valve
Clinical Trials
Ongoing Trials on Pulmonary valve at Clinical Trials.gov Trial results on Pulmonary valve Clinical Trials on Pulmonary valve at Google
Guidelines / Policies / Govt
US National Guidelines Clearinghouse on Pulmonary valve NICE Guidance on Pulmonary valve NHS PRODIGY Guidance FDA on Pulmonary valve CDC on Pulmonary valve
Books
Books on Pulmonary valve
News
Pulmonary valve in the news Be alerted to news on Pulmonary valve News trends on Pulmonary valve
Commentary
Blogs on Pulmonary valve
Definitions
Definitions of Pulmonary valve
Patient Resources / Community
Patient resources on Pulmonary valve Discussion groups on Pulmonary valve Patient Handouts on Pulmonary valve Directions to Hospitals Treating Pulmonary valve Risk calculators and risk factors for Pulmonary valve
Healthcare Provider Resources
Symptoms of Pulmonary valve Causes & Risk Factors for Pulmonary valve Diagnostic studies for Pulmonary valve Treatment of Pulmonary valve
Continuing Medical Education (CME)
CME Programs on Pulmonary valve
International
Pulmonary valve en Espanol Pulmonary valve en Francais
Business
Pulmonary valve in the Marketplace Patents on Pulmonary valve
Experimental / Informatics
List of terms related to Pulmonary valve

Template:Infobox Anatomy

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Synonyms and keywords: Pulmonic valve

Overview

The pulmonary valve is the semilunar valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps.

Similar to the aortic valve, the pulmonic valve opens in ventricular systole, when the pressure in the right ventricle rises above the pressure in the pulmonary artery. At the end of ventricular systole, when the pressure in the right ventricle falls rapidly, the pressure in the pulmonary artery will close the pulmonic valve.

The closure of the pulmonic valve contributes the P2 component of the second heart sound (S2).

The right heart is a low-pressure system, so the P2 component of the second heart sound is usually softer than the A2 component of the second heart sound. However, it is physiologically normal in some young people to hear both components separated during inhalation.