UTA A&P II CH. 23 RESPIRATORY
SYSTEM. EXAM QUESTIONS AND
ANSWERS 100% PASS 2026/2027
Process of breathing, fuels cellular respiration - ANS Physiological respiration-
produces ATP; for maintenance, growth, defense and division
Process requires oxygen- drives the electron transport chain
Conversion of pyruvate to acetyl Co-A and citric acid cycle produces carbon dioxide as waste
product - ANS cellular respiration
metabolic byproduct of cellular respiration - ANS CO2
1. Provides extensive gas exchange surface area between air and circulating blood
2. Moves air to and from exchange surfaces of lungs
3. Protects respiratory surfaces from outside environment
4. Produces sounds
5. Participates in olfactory sense - ANS Functions of the Respiratory System
lungs, bronchus, pharynx (throat), nose, nasal cavity, larynx (voice box), trachea (windpipe) -
ANS Organs of respiratory system
@2026 ALLRIGHTS RESERVED 1
, above the larynx (nose, nasal cavity, pharynx, associated structures) - ANS Upper respiratory
system
below the larynx (larynx, trachea, bronchi, lungs) - ANS Lower respiratory system
Nose, nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, terminal bronchioles
Filter, warm and humidify air, conduct air into lungs - ANS Conducting Zone
Where gas exchange occurs
Bronchioles, alveolar ducts, alveolar sacs, alveoli - ANS Respiratory Zone
air-filled pockets within the lungs where all gas exchange takes place - ANS Alveoli
Warm, moisten and filter incoming air
Sense of smell
Modify speech vibrations - ANS Nose functions
connects to pharynx at the nasopharynx portion and includes internal nares - ANS Nasal
cavity
nostrils - ANS nares
drain mucus into cavity along with nasolacrimal ducts - ANS paranasal sinuses
contain cilia, no globlet cells - ANS olfactory epithelium
@2026 ALLRIGHTS RESERVED 2
SYSTEM. EXAM QUESTIONS AND
ANSWERS 100% PASS 2026/2027
Process of breathing, fuels cellular respiration - ANS Physiological respiration-
produces ATP; for maintenance, growth, defense and division
Process requires oxygen- drives the electron transport chain
Conversion of pyruvate to acetyl Co-A and citric acid cycle produces carbon dioxide as waste
product - ANS cellular respiration
metabolic byproduct of cellular respiration - ANS CO2
1. Provides extensive gas exchange surface area between air and circulating blood
2. Moves air to and from exchange surfaces of lungs
3. Protects respiratory surfaces from outside environment
4. Produces sounds
5. Participates in olfactory sense - ANS Functions of the Respiratory System
lungs, bronchus, pharynx (throat), nose, nasal cavity, larynx (voice box), trachea (windpipe) -
ANS Organs of respiratory system
@2026 ALLRIGHTS RESERVED 1
, above the larynx (nose, nasal cavity, pharynx, associated structures) - ANS Upper respiratory
system
below the larynx (larynx, trachea, bronchi, lungs) - ANS Lower respiratory system
Nose, nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles, terminal bronchioles
Filter, warm and humidify air, conduct air into lungs - ANS Conducting Zone
Where gas exchange occurs
Bronchioles, alveolar ducts, alveolar sacs, alveoli - ANS Respiratory Zone
air-filled pockets within the lungs where all gas exchange takes place - ANS Alveoli
Warm, moisten and filter incoming air
Sense of smell
Modify speech vibrations - ANS Nose functions
connects to pharynx at the nasopharynx portion and includes internal nares - ANS Nasal
cavity
nostrils - ANS nares
drain mucus into cavity along with nasolacrimal ducts - ANS paranasal sinuses
contain cilia, no globlet cells - ANS olfactory epithelium
@2026 ALLRIGHTS RESERVED 2
