Endocardial cushions

Endocardial cushions
Interior of dorsal half of heart from a human embryo of about thirty days.
Details
Carnegie stage14
Days27
PrecursorLateral plate mesoderm[1]
Gives rise toSeptum intermedium
Identifiers
Latintubera endocardiaca atrioventricularia
MeSHD054089
TEcushions_by_E5.11.1.6.0.0.4 E5.11.1.6.0.0.4
Anatomical terminology

Endocardial cushions, or atrioventricular cushions, refer to a subset of cells in the development of the heart that play a vital role in the proper formation of the heart septa.

They develop on the atrioventricular canal[2] and conotruncal region of the bulbus cordis.[3]

During heart development, the heart starts out as a tube. As heart development continues, this tube undergoes remodeling to eventually form the four-chambered heart. The endocardial cushions are a subset of cells found in the developing heart tube that will give rise to the heart's primitive valves and septa, critical to the proper formation of a four-chambered heart.[4]

  1. ^ Maschhoff KL, Baldwin HS (2000). "Molecular determinants of neural crest migration". Am. J. Med. Genet. 97 (4): 280–8. doi:10.1002/1096-8628(200024)97:4<280::AID-AJMG1278>3.0.CO;2-N. PMID 11376439.
  2. ^ "endocardial cushions" at Dorland's Medical Dictionary
  3. ^ Sadler, T. W. (Thomas W.) (2004). Langman's medical embryology. Langman, Jan. (9th ed.). Philadelphia, Pa.: Lippincott Williams & Wilkins. ISBN 0-7817-4310-9. OCLC 51258190.
  4. ^ Carlson, Bruce M. (2014-01-01), "Development of the Heart", Reference Module in Biomedical Sciences, Elsevier, doi:10.1016/b978-0-12-801238-3.05460-x, ISBN 978-0-12-801238-3, retrieved 2020-12-05