1.1 - Growth adaptations Flashcards
1
Q
permanent tissues can only undergo ____________ (hypertrophy / hyperplasia)
A
hypertrophy
2
Q
in atrophy, decrease in cell number occurs via _____________, whereas decrease in cell size occurs via _______________
A
- apoptosis
- ubiquitin-proteosome degradation (of cytoskeleton)
3
Q
can apocrine metaplasia of breast carry an increased risk of cancer?
A
no
4
Q
deficiency in what vitamin can result in metaplasia?
A
A
5
Q
what is the pathogenesis of (night) blindness in vitamin A deficiency?
A
- goblet cell / columnar epithelium of conjunctiva undergoes metaplsia into keratinizing squamous epithelium
- xerophthalmia can lead to destruction of the cornea (keratomalacia) and blindness
6
Q
what is myositis ossificans?
A
metaplastic change of muscular CT to bone following trauma
7
Q
is dysplasia reversible or irreversible?
A
reversible
8
Q
aplasia is a failure of __________ during ___________
A
- cell production
- embryogenesis
