Cell Morphogenesis

Question 1

Morphogenesis

Answer 1

Change in cell shapes, location, and interactions

Question 2

Epidermis

Answer 2

Epithelial cells of the skin

Question 3

Dermis

Answer 3

Connective tissue

Question 4

Embryogenesis

Answer 4

This refers to the formation and development from fertilization all the way to just before birth

Question 5

What are the key stages for embryogenesis for development.

Answer 5

1. Fertilization and cell proliferation
2. Bastula (sphere of cells)
3. Gastrulation and cell differentiation along with morphogenesis

Question 6

Outline of morphogenesis (shapes)

Answer 6

1. Cell internalization
2. Elongation
3. Fine repositioning of cells

Question 7

Describe the processes that occur in cell internalization of morphogenesis

Answer 7

Gastruction will occur, turning the blastula into an embryo and 3 tissue layer.

Ectoderm: epidermis and nervous system
Mesoderm: muscles, connective tissue, bones, blood, kidneys
Endoderm: pancreas, gut, liver and lungs

Question 8

Which cells indent and start forming the anus

Answer 8

Endoderm

Question 9

Which cells crawl around inner surface

Answer 9

Mesoderm

Question 10

Fill in the blank.

Cell internalization by ________________form the mesoderm

Answer 10

Ingression and delamination

Question 11

Ingression

Answer 11

Individual cells from the outer layer detach and move inwards
This is known as an epithelial to mesenchymal transition because epithelial cells will transition to mesenchymal cells

Question 12

Why is the EMT transition carefully regulated

Answer 12

Because abnormal epithelium can start to develop and move inwards

Question 13

Fill in the blank.
Cell internalization by __________________form the endoderm

Answer 13

Invagination and involution