Nodules of semilunar leaflets of pulmonary valve
Noduli valvularum semilunarium valvae trunci pulmonalis
- Eponym: Bodies of Arantius; Nodules of Arantius; Nodules of Morgagni, Nodules of Valsalva
- Related terms: Nodules of semilunar cusps
Definition
The free and attached margins of each semilunar cusps of the pulmonary valve are strengthened by tendinous fibers, and the former presents, at its middle, a thickened nodule (corpus Arantii). From this nodule tendinous fibers radiate through the segment to its attached margin, but are absent from two narrow crescentic portions, the lunulæ, placed one on either side of the nodule immediately adjoining the free margin.
References
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/).
