Cell junctions Flashcards
1
Q
What are the mechanical junctions?
A
- Ball and socket - lock
- Tongue and groove- can slide over each other
2
Q
Why does the lens need a gap junction?
A
it is avascular- so gap junction give it nutrients via the aqueous humour
3
Q
Why the requirement for gap junctions?
A
it gives cytoplasmic continuity
4
Q
Where else are there gap junctions?
A
in the cardiac muscle
5
Q
Why does the cardiac muscle have gap junctions?
A
It has cytoplasmic continuity which allows cells to pass directly from one place to another
6
Q
What is an alternative name for gap junctions in cardiac muscle?
A
intercalated discs
7
Q
What do desmosomes do?
A
the strong junction that anchors cells together
