Left semilunar cusp - Valvula semilunaris sinistra

Description

The pulmonary valve is composed by three cusps (right, left and anterior semilunar cusps), formed by duplicatures of the lining membrane, strengthened by fibrous tissue.


This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).

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