PHYS 261 – MIDTERM EXAM
QUESTIONS AND ANSWERS 100% PASS
2026 EDITION
Which of the following is NOT a function of the respiratory system?
a. Assist in smelling.
b. Ventilation
c. Air Filtration
b. Perfusion
d. Assist in speech
e. Homeostatic regulation of body pH. - ANS b. Perfusion
What is the term describing inhaled air after normal inspiration?
a. Tidal Volume (TV)
b. Expiratory Reserve Volume (ERV)
c. Inspiratory Reserve Volume (IRV)
d. Residual Volume (RV)
e. Vital Capacity (VC) - ANS c. Inspiratory Reserve Volume (IRV)
1
@2026 EDITION ALLRIGHTS RESERVED
,What is gas exchange 2?
a. The exchange of gasses through alveoli.
b. The exchange of gasses through cells.
c. During ventilation.
d. The exchange of gasses through flatulence.
e. The exchange of gasses through perspiration. - ANS a. The exchange of gasses through
alveoli.
The exchange of gasses during cellular respiration is known as which of the following?
a. Gas exchange 1
b. Gas exchange 2
c. Gas exchange 3
d. Gas exchange 4
e. Gas exchange 5 - ANS c. Gas exchange 3
What creates natural pressure gradients in the body?
a. Lungs
b. Neurons
c. Muscles
d. Heart
e. Red Blood Cells - ANS c. Muscles
What is bulk flow?
a. Air flow from the head to the feet.
b. Blood pressure.
c. Air flow from regions of high to low pressure.
2
@2026 EDITION ALLRIGHTS RESERVED
, d. The natural movement of lipids.
e. Resistance of air from low to high pressure. - ANS c. Air flow from regions of high to low
pressure.
Describe the air pathway starting from the external environment. - ANS Nose/Mouth >
pharynx > larynx > trachea > bronchus > bronchioles > alveoli
Which part of the respiratory system has 3 lobes, a horizontal fissure, and an oblique fissure?
a. Right Lung
b. Left Lung
c. Alveoli
d. Bronchus
e. Diaphragm - ANS a. Right Lung
Name all the parts of the upper respiratory tract? - ANS 1. Nasal Cavity (Nose/Mouth)
2. Pharynx
3. Larynx
4. *Trachea - some would argue it is.
Name all the parts of the lower respiratory tract? - ANS 1. *Trachea - some would argue it is.
2. Bronchus
3. Bronchioles
4. Lungs
5. Alveoli
6. Diaphragm
3
@2026 EDITION ALLRIGHTS RESERVED
QUESTIONS AND ANSWERS 100% PASS
2026 EDITION
Which of the following is NOT a function of the respiratory system?
a. Assist in smelling.
b. Ventilation
c. Air Filtration
b. Perfusion
d. Assist in speech
e. Homeostatic regulation of body pH. - ANS b. Perfusion
What is the term describing inhaled air after normal inspiration?
a. Tidal Volume (TV)
b. Expiratory Reserve Volume (ERV)
c. Inspiratory Reserve Volume (IRV)
d. Residual Volume (RV)
e. Vital Capacity (VC) - ANS c. Inspiratory Reserve Volume (IRV)
1
@2026 EDITION ALLRIGHTS RESERVED
,What is gas exchange 2?
a. The exchange of gasses through alveoli.
b. The exchange of gasses through cells.
c. During ventilation.
d. The exchange of gasses through flatulence.
e. The exchange of gasses through perspiration. - ANS a. The exchange of gasses through
alveoli.
The exchange of gasses during cellular respiration is known as which of the following?
a. Gas exchange 1
b. Gas exchange 2
c. Gas exchange 3
d. Gas exchange 4
e. Gas exchange 5 - ANS c. Gas exchange 3
What creates natural pressure gradients in the body?
a. Lungs
b. Neurons
c. Muscles
d. Heart
e. Red Blood Cells - ANS c. Muscles
What is bulk flow?
a. Air flow from the head to the feet.
b. Blood pressure.
c. Air flow from regions of high to low pressure.
2
@2026 EDITION ALLRIGHTS RESERVED
, d. The natural movement of lipids.
e. Resistance of air from low to high pressure. - ANS c. Air flow from regions of high to low
pressure.
Describe the air pathway starting from the external environment. - ANS Nose/Mouth >
pharynx > larynx > trachea > bronchus > bronchioles > alveoli
Which part of the respiratory system has 3 lobes, a horizontal fissure, and an oblique fissure?
a. Right Lung
b. Left Lung
c. Alveoli
d. Bronchus
e. Diaphragm - ANS a. Right Lung
Name all the parts of the upper respiratory tract? - ANS 1. Nasal Cavity (Nose/Mouth)
2. Pharynx
3. Larynx
4. *Trachea - some would argue it is.
Name all the parts of the lower respiratory tract? - ANS 1. *Trachea - some would argue it is.
2. Bronchus
3. Bronchioles
4. Lungs
5. Alveoli
6. Diaphragm
3
@2026 EDITION ALLRIGHTS RESERVED
