Cell biology of tissues

Question 1

What are the 4 main types of human cells?

Answer 1

Mesenchymal/Connective tissue cells e.g. fibroblasts
Hematopoetic cells e.g. blood cells
Neural cells e.g. neurones
Epithelial cells e.g. cuboidal epithelium

Question 2

What is the originating cell type of a carcinoma?

Answer 2

Epithelial cell

Question 3

What is the originating cell type of a sarcoma?

Answer 3

Mesenchymal cell

Question 4

What is the originating cell type of a lymphoma?

Answer 4

Hematopoetic cell - lymphocytes

Question 5

What is the originating cell type of leukaemia?

Answer 5

Hematopoetic cell - Bone marrow

Question 6

What is the originating cell type of a neuroblastoma?

Answer 6

Neural cell - neurone

Question 7

What is the originating cell type of a glioma?

Answer 7

Neural cell - glial cells

Question 8

Define tissue

Answer 8

Group of cells whose type, organisation and architecture are integral to function

Question 9

What are the main cell-cell junctions?

Answer 9

Zonula occludens (tight)
Zonula adherens (adhesion belt)
Macula adherens (desmosomes)
Macula communicans (gap junction)

Question 10

What are the components of the cytoskeleton?

Answer 10

Microtubules
Intermediate filaments
Microfilaments

Question 11

What are the main components of tissues?

Answer 11

Cells/fibres

ECM/ECF