Galen College of Nursing NU110 Exam
#2 Questions and Answers
4 phases of respiration - Answer-1. Pulmonary ventilation
2. External gas exchange
3. Gas transport in the blood
4. Internal gas exchange
Respiration - Answer-Inhalation and exhalation of air. The process by which O2 is obtained from the
environment and delivered to the cells.
Structures of the Respiratory System - Answer-Nasal cavity,Pharynx, Larynx, Trachea, Bronchi, Alveoli
pulmonary ventilation - Answer-movement of air into and out of the lungs/exchange of air between the
atmosphere and the air sacs (Alveoli)
External gas exchange - Answer-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
Gas transport in the blood - Answer-The circulating blood carries gases between the lungs and the
tissues, supplying oxygen to the cells and bringing back carbon dioxide.
, Internal gas exchange - Answer-occurs in the tissues as oxygen diffuses from the blood to the cells,
whereas carbon dioxide travels from the cells into the blood
compliance - Answer-The ease with which one can expand the lungs and thorax
Diffusion - Answer-Movement of molecules from an area of higher concentration to an area of lower
concentration/concentration gradient
two phases of ventilation - Answer-inhalation and exhalation
Surfactant - Answer-chemical produced in the lungs to maintain the surface tension of the alveoli and
keep them from collapsing
Difference between the left and right bronchi - Answer-right bronchi is larger and extends more
vertically. (this is where a foreign object will most likely lodge)
hypoventilation - Answer-causes increased CO2/H+ in blood & acidosis
Hyperventilation - Answer-causes decreased CO2/H+ in blood and Alkalosis
Part of the brain controls the HR and Resp - Answer-Medulla/Brainstem
What is the process that controls respiration - Answer-The brain senses arterial levels of H+, sends
signals to the phrenic nerve to stimulate the diaphragm to increases respiration to remove excess CO2
and H+
#2 Questions and Answers
4 phases of respiration - Answer-1. Pulmonary ventilation
2. External gas exchange
3. Gas transport in the blood
4. Internal gas exchange
Respiration - Answer-Inhalation and exhalation of air. The process by which O2 is obtained from the
environment and delivered to the cells.
Structures of the Respiratory System - Answer-Nasal cavity,Pharynx, Larynx, Trachea, Bronchi, Alveoli
pulmonary ventilation - Answer-movement of air into and out of the lungs/exchange of air between the
atmosphere and the air sacs (Alveoli)
External gas exchange - Answer-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
Gas transport in the blood - Answer-The circulating blood carries gases between the lungs and the
tissues, supplying oxygen to the cells and bringing back carbon dioxide.
, Internal gas exchange - Answer-occurs in the tissues as oxygen diffuses from the blood to the cells,
whereas carbon dioxide travels from the cells into the blood
compliance - Answer-The ease with which one can expand the lungs and thorax
Diffusion - Answer-Movement of molecules from an area of higher concentration to an area of lower
concentration/concentration gradient
two phases of ventilation - Answer-inhalation and exhalation
Surfactant - Answer-chemical produced in the lungs to maintain the surface tension of the alveoli and
keep them from collapsing
Difference between the left and right bronchi - Answer-right bronchi is larger and extends more
vertically. (this is where a foreign object will most likely lodge)
hypoventilation - Answer-causes increased CO2/H+ in blood & acidosis
Hyperventilation - Answer-causes decreased CO2/H+ in blood and Alkalosis
Part of the brain controls the HR and Resp - Answer-Medulla/Brainstem
What is the process that controls respiration - Answer-The brain senses arterial levels of H+, sends
signals to the phrenic nerve to stimulate the diaphragm to increases respiration to remove excess CO2
and H+
