Galen College of Nursing NU110 Exam 2
Questions and Answers 2026
1
4 phases of respiration
1. Pulmonary ventilation
2. External gas exchange
3. Gas transport in the blood
4. Internal gas exchange
2
Respiration
Inhalation and exhalation of air. The process by which O2 is obtained from the
environment and delivered to the cells.
3
Structures of the Respiratory System
Nasal cavity,Pharynx, Larynx, Trachea, Bronchi, Alveoli
4
pulmonary ventilation
movement of air into and out of the lungs/exchange of air between the
atmosphere and the air sacs (Alveoli)
5
External gas exchange
NU 110
, NU 110
occurs in the lungs as oxygen diffuses from the air sacs into the blood and carbon
dioxide diffuses out of the blood to be eliminated
6
Gas transport in the blood
The circulating blood carries gases between the lungs and the tissues, supplying
oxygen to the cells and bringing back carbon dioxide.
7
Internal gas exchange
occurs in the tissues as oxygen diffuses from the blood to the cells, whereas
carbon dioxide travels from the cells into the blood
8
compliance
The ease with which one can expand the lungs and thorax
9
Diffusion
Movement of molecules from an area of higher concentration to an area of lower
concentration/concentration gradient
10
two phases of ventilation
inhalation and exhalation
11
NU 110