Hematopoiesis Flashcards Preview

A. White- Histology > Hematopoiesis > Flashcards

Flashcards in Hematopoiesis Deck (10):
1

Name 3 of the 4 characteristics of stem cells.

  • may proliferate extremely well
  • self-renewing
  • may differentiate into several (at least 2) different cell types
  • may reconstitute tisues after injury

2

Totipotent cells

Totipotent cells give rise to ALL cells of an organism, including embryonic and extaembryonic tissues (cells which support embryonic development).

- A zygote is totipotent

3

Pluripotent cells

Pluripotent cells give rise to all cells of the embryo and subsequently adult tissues. (Embryonic stem cells)

4

Mulitpotent cells

Multipotent cells give rise to different cell types of a given lineage (adult stem cells)

5

Which cells could also be called embryonic stem cells?

Pluripotent cells

6

Which cells could also be called adult stem cells?

Multipotent cells

7

Name 3 of the 4 characteristics of embryonic stem cells.

  1. dervied from the inner-dell mass of a blastocyst
  2. pluripotent, differentiate to all cell lineages
  3. technical and ethical limitation
  4. may be induced from adult tissues

8

Name 2 of the 3 characteristics of adult stem cells.

  1. Harvested from mature organs/ tissues (bone marrow)
  2. multipotent
  3. more restricted ability to produce different cell tpes and to self-renew

 

9

what are some characteristic of hematopoiesis during 2-8 weeks of gestation?

  • blood islands are found in the yolk sac wall
  • nucleated erythrocytes are present
  • no leukocytes

10

What are some characteristic of hematopoiesis during