Cellular Adaptations Flashcards
0
Q
What is increase in tissue size due to increase in cell size?
A
Hypertrophy
1
Q
What is increase in tissue size due to increase in cell number?
A
Hyperplasia
2
Q
What is a reduction in cell mass and how does it happen?
A
Atrophy, may happen due to loss of stimuli/functional demand, loos of blood flow, loss of innervation.
3
Q
What is it called when differentiated cells convert?
A
Metaplasia. Eg squamous cells cells replaced by stratified in bronchi after tobacco smoke.
4
Q
What is ectopia?
A
Presence if differentiated tissue in an abnormal location. Eg gastric mucosa in oesophagus, congenital.
5
Q
What is aetiology?
A
Underlying cause
6
Q
What is pathogenesis?
A
Mechanism by which aetiology interacts with cells and organs to cause disease.
