Regeneration Wednesday

Question 1

CNS neuron damage vs PNS neuron damage

Answer 1

CNS: no macrophages, astrocytes move in, block regeneration of axon–> that sucks

PNS: macrophages clears debris, no inhibitory astrocytes, axon grows back but does not track correctly

Question 2

Wallerian degeneration

Answer 2

transection of an axon (blocking axoplasmic flow)

Question 3

chromatolysis

Answer 3

• type of nerve damage

- Nissl bodies break down

Question 4

induced pluripotent stem cells (IPS cells)

Answer 4

Pluripotency is defined as the potential to differentiate into any somatic cell

less ethical

Question 5

Advantages of Stem Cells

Answer 5

• Stem cells are pluripotent so may be injected and form multiple types of cells needed for repair
• They may be engineered to secrete needed factors for the regeneration process
• May be monitored for progression of the repair

Question 6

What are the ethics involved in stem cells

Answer 6

well……there are problems…..and……ethics…..and ethical dilemmas…….screw it, just guess on the test