ZFIN Post-Composed Term: caudal vein plexus apoptotic process

Term:	caudal vein plexus apoptotic process
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:	caudal vein plexus
Synonyms:
Definition:	Post-vent vasculature which forms an interconnecting network of venous tubes. The caudal vein plexus forms via a very active period of angiogenic sprouting, beginning at 25 hpf when venous endothelial cells of the posterior cardinal vein sprout and migrate ventrally, then fuse with neighboring tip cells. This process reiterates during a five-hour window, forming a primordial plexus by 30 hpf. By two days of development, the primitive caudal vein plexus has matured into a complex, well-perfused, venous vascular network. Starting at 4 dpf the caudal vein plexus starts to remodel and simplify.
Ontology:	Anatomy Ontology [ZFA:0001286]

Name:	apoptotic process
Synonyms:	apoptosis, apoptosis activator activity, apoptosis signaling, apoptotic cell death, apoptotic program, apoptotic programmed cell death, caspase-dependent programmed cell death, cell suicide, cellular suicide, commitment to apoptosis, induction of apoptosis, induction of apoptosis by p53, programmed cell death by apoptosis, signaling (initiator) caspase activity, type I programmed cell death
Definition:	A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
Ontology:	GO: Biological Process [GO:0006915] QuickGO AmiGO