L9 - Epithelia 2.0 Flashcards
stem cells play a crucial role in…
tissue renewal and repair
misbehaviour of mutant cells underlie development of what?
cancer
cells in epithelial tissues have __ regenerative capacity
high
what mechanism causes cells lost to be replaced?
cell division
a causative factor of cell loss?
friction e.g. when eating
stem cells are capable of?
dividing and renewing themselves for long periods
stem cells are…?
unspecialised (depending on where they are found tells what they can possibly give rise to)
stem cells can give rise to?
specialised cell types
adult stem cell, aka?
somatic stem cell
what is a stem cell?
undifferentiated cell found amongst differentiated cells in tissue/organ
what is a multipotent stem cell?
can renew itself and differentiate to major cell types of tissue/organ
what is a pluripotent stem cell?
can become all types of cells in the body
what are the primary roles of adult stem cells in living tissue?
maintenance and repair
what is the primary role of an embryonic stem cell?
forms into embryo and so can become any cell
what does the inner cell mass blastocyst consist of?
cells that become the mature organism, some that become the amniotic membrane and placenta