ZFIN Post-Composed Term: blood island cell death

Term:	blood island cell death
Note:	This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name.

Name:	blood island
Synonyms:	blood islands, caudal hematopoietic tissue, posterior blood island, posterior ICM
Definition:	Nests of developing blood cells arising late in the segmentation period from the intermediate mass, and located in the anterior-ventral tail, just posterior to the yolk extension.
Ontology:	Anatomy Ontology [ZFA:0000094]

Name:	cell death
Synonyms:	accidental cell death, necrosis
Definition:	Any biological process that results in permanent cessation of all vital functions of a cell. A cell should be considered dead when any one of the following molecular or morphological criteria is met: (1) the cell has lost the integrity of its plasma membrane; (2) the cell, including its nucleus, has undergone complete fragmentation into discrete bodies (frequently referred to as apoptotic bodies). The cell corpse (or its fragments) may be engulfed by an adjacent cell in vivo, but engulfment of whole cells should not be considered a strict criteria to define cell death as, under some circumstances, live engulfed cells can be released from phagosomes (see PMID:18045538).
Ontology:	GO: Biological Process [GO:0008219] QuickGO AmiGO