Medical Micro - lung infection Flashcards
1
Q
name the mechanical factors to infection
A
epithelial factors
movement of cilia
trapping effect of mucus
2
Q
name the chemical factors to prevent infection
A
fatty acids in sweat
lysozyme and phospholipase
low pH
3
Q
what are the biological factors to prevent infection
A
normal flora of the skin and GI tract
4
Q
what are the clearance mechanisms from the lung
A
mucociliary escalator
coughing
phagocytosis
5
Q
outline how particle clearance is biphasic
A
fast - tracheobronchial mucociliary clearance
slow - alveolar clearance
6
Q
what does the site of particle deposition in part determine
A
mechanism and rate of particle clearance
7
Q
what is a sign of cystic fibrosis shortly after birth
A
mucus in the bronchial tree stagnates in the smaller bronchioles
