Respiratory System Flashcards
0
Q
Structures in respiratory pathway, from when air enters the nares to the alveoli
A
External nares -> Nasal cavity -> Pharynx -> Larynx -> Trachea -> Bronchi -> Bronchioles -> Alveoli
1
Q
Bicarbonate buffer system
A
CO2(g) + H2O(l) H2CO3(aq) H+ (aq) + HCO3- (aq)
2
Q
Main functions of respiratory system
A
- Gas exchange
- Thermoregulation
- Immunological
- pH regulation
3
Q
Vasodilation vs. vasoconstriction
A
Vasodilation: capillaries expand, more blood can pass through vessels and a larger amount of thermal energy can be dissipated
Vasoconstriction: capillaries contract, less blood can pass through, conserving thermal energy
