A&P: Practice Quiz: Ch 13: Respiratory System

Where do gas exchanges between the blood and external environment occur in the respiratory system?

• In the nasal cavity

• In the alveoli of the lungs

• In the trachea

• In the pharynx

What does the upper respiratory tract include?

• Passageways from the trachea to alveoli

• Passageways from the nose to larynx

• Passageways from the lungs to bronchi

• Passageways from the pharynx to trachea

What is the function of the passageways to the lungs?

• To cool and dry the incoming air

• To purify, humidify, and warm the incoming air

• To filter and cool the incoming air

• To dry and heat the incoming air

What is the function of the nostrils (nares) in the respiratory system?

• They filter dust from the air.

• They are the route through which air enters the nose.

• They humidify the air.

• They produce mucus.

What is the role of the nasal septum?

• It filters air.

• It warms the air.

• It divides the nasal cavity.

• It produces mucus.

What is found in the nasal cavity and is responsible for the sense of smell?

• Nasal concha

• Frontal sinus

• Olfactory epithelium

• Nasopharynx

What is one of the functions of the respiratory mucosa?

• It lines the stomach.

• It moistens air.

• It digests food.

• It absorbs nutrients.

How does the respiratory mucosa destroy bacteria?

• By physical filtration.

• By the action of lysozyme enzymes.

• By absorbing them.

• By freezing them.

What is the function of conchae in the nasal cavity?

• Increase surface area

• Decrease air turbulence

• Reduce trapping of particles

• Separate the nasal and oral cavities

What are the functions of the paranasal sinuses?

• Lighten the skull, act as resonance chambers for speech, produce mucus

• Support the nasal cavity, filter air, produce tears

• Protect the brain, enhance smell, produce saliva

• Strengthen the jaw, aid in digestion, produce hormones