Embryonic Period Flashcards
1
Q
What is the time from for Blastocyst to Embryo?
A
from 2nd to 8 weeks
2
Q
During the time of Blastocyst to embryo something has to occur. What?
A
Cytodifferentiation
3
Q
Cytodifferentiation occurs because?
A
There are receptors on the cell membranes of all the cells in the blastocyst.
4
Q
Cytodifferentiation can undergo two different kinds of process to create differentiation of cell lines?
A
Autocrine and Paracrine
5
Q
The Autocrine process does what?
A
cell receives hormone or receptor stimulation from a substance produced by ITSELF.
6
Q
The Pararine process does what?
A
cell receives hormone or receptor stimulation from a substance produced by a DIFFERENT cell.
7
Q
The number of Cytodifferentiaton Receptors
A
If…
- none present—–Cells will die
- couple receptors—-Cells survive
- more receptors—-cells proliferate (the will undergo mitosis)
- still more receptors—-cells differentiate (become different cells)
