Stem Cells Flashcards
can divide without limit (proliferation)
stem cells
number of cell types: all
totipotential
number of cell types: all except cells of the embryonic membranes
pleuripotential
number of cell types: many
multipotential
number of cell types: few
oligopotential
number of cell types: 4
quadripotential
number of cell types: 3
tripotential
number of cell types: 2
bipotential
number of cell types: 1
unipotential
number of cell types: none
nullipotential
zygote
totipotent
embryonal stem cell
pleuripotent
germ layer stem cell
multipotent
lineage stem cell
oligopotent
tissue-determined stem cell
tri- or bipotent
terminal cell
nullipotent
give rise to specialized cell types that make up the heart, skin and other tissues.
embryonic stem cells (ESC)
generate replacements for cells lost through normal wear and tear, injury and disease.
adult stem cells
blastocyst includes 3 structures
inner cell mass
trophoblast
blastocoel
group of approximately 30 cells at one end of the blastocoel
inner cell mass
layer of cell surrounding blastocyst
trophoblast
cavity inside blastocyst
blastocoel