Mammalian Gaseous Exchange System Flashcards
1
Q
What is rings of cartiage?
A
holds airways open e.g. trachea
provides strength
2
Q
What is ciliated epithilium?
A
waves to move mucous / dust / bacteria along trachae, bronchi, etc
3
Q
What are goblet cells?
A
secrete mucous e.g. trachea, bronchi and bronchioles
4
Q
What is the smooth muscle (involuntary muscle)?
A
constricts to control the diameter of the airway e.g. trachea
5
Q
What are the elastic fibres in?
A
trachea, bronchi, bronchioles, alveoli
elastin protein
recoil - to return to original size / shape
aids in ventilation
6
Q
What is squamous epithelium?
A
thin surface layer of cells e.g. alveoli
for shorter diffusion distance
