Regeneration and Repair Flashcards Preview

BMS1052 Human Neurobiology > Regeneration and Repair > Flashcards

Flashcards in Regeneration and Repair Deck (11):
1

What is neurogenesis?

The productions of new neuronal cells from precursor populations that subsequently produce neurites to make connections with host cells.

2

What area of the brain is most active in terms of neurogenesis and why?

The hippocampus. The hippocampus plays a vital function in memory consolidation and learning.

3

What cells are precursors of all neural cells?

Neuroepithelial cells.

4

What are the three types of stem cells?

Totopotent
Pluripotent
Multipotent

5

What are totipotent stem cells?

Cells that give rise to all embryonic somatic cells and germ cells- give rise to an entire organism.
Include the zygote and a few early cells of the morula.

6

Cells of which germ layer differentiate into the brain?

Ectoderm layer cells.

7

What are examples of totipotent cells?

Zygote and some cells of the early morula.

8

What are pluripotent stem cells?

They are descendants of totipotent stem cells and can give rise to cells of the three germ layers: ectoderm, mesoderm and the endoderm.

9

What are multipotent stem cells?

Produce cells of a particular lineage or closely related family.

10

What are the three sources of pluripotent cells?

- Fusion of somatic and embryonic stem cells
- Nuclear transfer ES cells
- Induced pluripotent stem cells.

11

What is axonogenesis?

If the axon of a peripheral nerve is cut, it is able to reinforce connections. Additionally, other axons running parallel can take on the role of the damaged axon.