BSC 2086 Chapter 22 Questions and Answers with Verified
Solutions | Latest Update
QUESTION
Primary function of the respiratory system
Answer:
To deliver oxygen (O₂) to the blood and remove carbon dioxide (CO₂).
QUESTION
Why can severe pneumonia lead to death?
Answer:
Oxygen cannot enter blood, halting aerobic ATP production and causing organ failure.
QUESTION
Conducting Zone
Answer:
Passages that move, filter, warm, and humidify air without participating in gas exchange.
QUESTION
Structures in the Conducting Zone
Answer:
Nose, nasal cavity, pharynx, larynx, trachea, bronchi, and major bronchioles.
QUESTION
Respiratory Zone
Answer:
Passages where gas exchange occurs between air and blood.
QUESTION
Structures in the Respiratory Zone
Answer:
Respiratory bronchioles, alveolar ducts, and alveoli.
QUESTION
Upper Respiratory Tract boundary
Answer:
From the nose to the larynx.
, QUESTION
Lower Respiratory Tract boundary
Answer:
From the trachea to the lungs.
QUESTION
Three functions of the Larynx
Answer:
Produces sound, maintains an open airway, and protects the lower respiratory tract.
QUESTION
Effect of vocal cord length on pitch
Answer:
Longer vocal cords produce a lower voice.
QUESTION
Factors that increase vocal cord thickness
Answer:
Testosterone, smoking, irritation, and GERD (lowering voice pitch).
QUESTION
Thyroid Cartilage
Answer:
Cartilage that protects vocal cords and forms the Adam's apple under testosterone influence.
QUESTION
Trachea support structure
Answer:
Hyaline cartilage rings that maintain airway patency and prevent collapse.
QUESTION
Type I Alveolar Cells
Answer:
Thin, simple squamous epithelial cells that form alveolar walls for rapid gas diffusion.
Solutions | Latest Update
QUESTION
Primary function of the respiratory system
Answer:
To deliver oxygen (O₂) to the blood and remove carbon dioxide (CO₂).
QUESTION
Why can severe pneumonia lead to death?
Answer:
Oxygen cannot enter blood, halting aerobic ATP production and causing organ failure.
QUESTION
Conducting Zone
Answer:
Passages that move, filter, warm, and humidify air without participating in gas exchange.
QUESTION
Structures in the Conducting Zone
Answer:
Nose, nasal cavity, pharynx, larynx, trachea, bronchi, and major bronchioles.
QUESTION
Respiratory Zone
Answer:
Passages where gas exchange occurs between air and blood.
QUESTION
Structures in the Respiratory Zone
Answer:
Respiratory bronchioles, alveolar ducts, and alveoli.
QUESTION
Upper Respiratory Tract boundary
Answer:
From the nose to the larynx.
, QUESTION
Lower Respiratory Tract boundary
Answer:
From the trachea to the lungs.
QUESTION
Three functions of the Larynx
Answer:
Produces sound, maintains an open airway, and protects the lower respiratory tract.
QUESTION
Effect of vocal cord length on pitch
Answer:
Longer vocal cords produce a lower voice.
QUESTION
Factors that increase vocal cord thickness
Answer:
Testosterone, smoking, irritation, and GERD (lowering voice pitch).
QUESTION
Thyroid Cartilage
Answer:
Cartilage that protects vocal cords and forms the Adam's apple under testosterone influence.
QUESTION
Trachea support structure
Answer:
Hyaline cartilage rings that maintain airway patency and prevent collapse.
QUESTION
Type I Alveolar Cells
Answer:
Thin, simple squamous epithelial cells that form alveolar walls for rapid gas diffusion.
