BIOS 242 Week 7 Quiz Exam final
(Latest Update ) Anatomy
and Physiology IV with Lab |
Questions & Answers | 100% Correct |
Grade A - Chamberlain
1. What is the main function of the respiratory system?
A. Digest nutrients
B. Gas exchange
C. Hormone secretion
D. Filter blood
Correct Answer: B
Rationale: The respiratory system facilitates oxygen uptake and
carbon dioxide removal.
2. Which structure prevents food from entering the trachea?
A. Epiglottis
B. Larynx
C. Bronchi
D. Alveoli
Correct Answer: A
,Rationale: The epiglottis folds over the glottis during swallowing to
protect the airway.
3. Which cells produce surfactant?
A. Type I alveolar cells
B. Type II alveolar cells
C. Macrophages
D. Goblet cells
Correct Answer: B
Rationale: Type II alveolar cells secrete surfactant to reduce
alveolar surface tension.
4. Which cells allow gas exchange across alveoli?
A. Type I alveolar cells
B. Type II alveolar cells
C. Macrophages
D. Goblet cells
Correct Answer: A
Rationale: Type I cells are thin and facilitate diffusion of oxygen
and carbon dioxide.
5. Which structure connects the larynx to the bronchi?
A. Trachea
B. Bronchioles
C. Alveoli
,D. Nasopharynx
Correct Answer: A
Rationale: The trachea conducts air from the larynx to the bronchi.
6. Which structure contains cartilage to prevent collapse?
A. Bronchi
B. Bronchioles
C. Alveoli
D. Terminal bronchioles
Correct Answer: A
Rationale: Bronchi have cartilage rings to maintain airway patency.
7. What is the primary muscle for quiet inspiration?
A. Diaphragm
B. External intercostals
C. Internal intercostals
D. Abdominals
Correct Answer: A
Rationale: Diaphragm contraction increases thoracic volume to
draw air in.
8. Which muscles aid in forced expiration?
A. Internal intercostals and abdominals
B. External intercostals
C. Diaphragm
, D. Pectorals
Correct Answer: A
Rationale: These muscles decrease thoracic volume to expel air
forcefully.
9. Which lung volume cannot be measured by spirometry?
A. Residual volume
B. Tidal volume
C. Inspiratory reserve volume
D. Expiratory reserve volume
Correct Answer: A
Rationale: Residual volume remains in the lungs after maximal
exhalation.
10. What is tidal volume (TV)?
A. Air inhaled or exhaled at rest
B. Air exhaled beyond normal expiration
C. Inspiratory reserve volume
D. Residual volume
Correct Answer: A
Rationale: TV represents the normal volume of air exchanged
during quiet breathing.
11. What is inspiratory reserve volume (IRV)?
(Latest Update ) Anatomy
and Physiology IV with Lab |
Questions & Answers | 100% Correct |
Grade A - Chamberlain
1. What is the main function of the respiratory system?
A. Digest nutrients
B. Gas exchange
C. Hormone secretion
D. Filter blood
Correct Answer: B
Rationale: The respiratory system facilitates oxygen uptake and
carbon dioxide removal.
2. Which structure prevents food from entering the trachea?
A. Epiglottis
B. Larynx
C. Bronchi
D. Alveoli
Correct Answer: A
,Rationale: The epiglottis folds over the glottis during swallowing to
protect the airway.
3. Which cells produce surfactant?
A. Type I alveolar cells
B. Type II alveolar cells
C. Macrophages
D. Goblet cells
Correct Answer: B
Rationale: Type II alveolar cells secrete surfactant to reduce
alveolar surface tension.
4. Which cells allow gas exchange across alveoli?
A. Type I alveolar cells
B. Type II alveolar cells
C. Macrophages
D. Goblet cells
Correct Answer: A
Rationale: Type I cells are thin and facilitate diffusion of oxygen
and carbon dioxide.
5. Which structure connects the larynx to the bronchi?
A. Trachea
B. Bronchioles
C. Alveoli
,D. Nasopharynx
Correct Answer: A
Rationale: The trachea conducts air from the larynx to the bronchi.
6. Which structure contains cartilage to prevent collapse?
A. Bronchi
B. Bronchioles
C. Alveoli
D. Terminal bronchioles
Correct Answer: A
Rationale: Bronchi have cartilage rings to maintain airway patency.
7. What is the primary muscle for quiet inspiration?
A. Diaphragm
B. External intercostals
C. Internal intercostals
D. Abdominals
Correct Answer: A
Rationale: Diaphragm contraction increases thoracic volume to
draw air in.
8. Which muscles aid in forced expiration?
A. Internal intercostals and abdominals
B. External intercostals
C. Diaphragm
, D. Pectorals
Correct Answer: A
Rationale: These muscles decrease thoracic volume to expel air
forcefully.
9. Which lung volume cannot be measured by spirometry?
A. Residual volume
B. Tidal volume
C. Inspiratory reserve volume
D. Expiratory reserve volume
Correct Answer: A
Rationale: Residual volume remains in the lungs after maximal
exhalation.
10. What is tidal volume (TV)?
A. Air inhaled or exhaled at rest
B. Air exhaled beyond normal expiration
C. Inspiratory reserve volume
D. Residual volume
Correct Answer: A
Rationale: TV represents the normal volume of air exchanged
during quiet breathing.
11. What is inspiratory reserve volume (IRV)?
