Physiology Flashcards
1
Q
Respiration DEF
A
2
Q
Pulmonary Ventilation (External respiration)
A
3
Q
Pulmonary Respiration (External respiration)
A
4
Q
Internal Respiration
A
5
Q
Conducting zone:
A
6
Q
Respiratory zone:
A
7
Q
Structure of respiratory system:
(Divided into.. 3)
A
8
Q
*Functions of Conducting zone:
A
9
Q
*Protective mechanisms/Reflexes-
(Conducting zone)
A
10
Q
Non-respiratory function of Conducting zone-
A
Olfactory epith. - Smell
Larynx & Vocal cords - Phonation (speech)
11
Q
Function of Respiratory zone:
A
12
Q
Surfactant DEF:
A
Is lipoprotein produced by type 2 alveolar cells (at 24-28 weeks preg.)
It decreases the surface tension of alveoli, to prevent collapse
13
Q
How many alveoli in human lungs?
A
600-800 million (500mill)
14
Q
Surface area of lungs?
A
About 90 m^2
15
Q
Respiratory muscles:
A
