Microstructure and function off the lungs Flashcards
to be warm and happy
Why are the diseases in the lung difficult to diagnose
Lung has allot of capacity
Can you survive if you lose a lobe
yes
What is the cartilage for
keeping the air holes open
What are basal cells
stem cell of the lung and sense dying cells
What is the difference in type 1 and 2 alveolar cell
Type 1 is Gas exchange
Type 2 is Production of surfactant
What is the function of a Serous cell Club cell Goblet cell Basal cell Ciliated epithelium Brush cell
Antibacterial Production of surfactant Mucus secretion Renew damaged cells Protective barrier, mucociliary clearance Unknown
What are the functions of the airways epithelium
Physical barrier to pathogens
Production of inflammatory mediators
Productions of mucus
What is the principal gel component of mucus secretion
Mucins
What cells produce mucins
Goblet and mucous cells
what is the function of mucus
Barrier to pathogens
Maintenance of hydration
serous cells secrete
antibacterials
the difference in type I and II alveolar cells
Type I = simple squamous epithelium. and covers 90% of alveolus and MAIN SIGHT OOF GASS EXCHANGE
Type II = septal cells - produce surfactant to reduce surface tension preventing alveoli collapse and renew type I cells
What is the receptor of the parasympathetic autonomic nervous system that controls smooth muscle and what is it called and what effect on the smooth muscle does it have
Muscarinic
Constricts smooth muscle and causes mucus gland secretion
What are the two types of sympathetic autonomic nervous system receptors that control breathing and what are they called and what do they do
Alpha and Beta2 receptors
Alpha - constricts blood vessels
Beta2 - relaxes smooth muscle (increased diameter)
What do beta2 agonists stop occurring
smooth muscle relaxing
What do mast cells do on smooth muscle
constrict motherfucker
