Question 1

Which of the following is NOT a primary function of the respiratory system?

Accepted Answer

Producing digestive enzymes

Question 2

A patient presents with a loss of smell after a head injury. Which part of the respiratory system is most likely affected?

Accepted Answer

Olfactory epithelium in the superior surface of the nasal cavity

Question 3

Which structure is responsible for producing sound (vocalization) in the respiratory system?

Accepted Answer

Larynx

Question 4

The respiratory epithelium lining most of the nasal cavity and respiratory tract is best described as:

Accepted Answer

Pseudostratified ciliated columnar epithelium

Question 5

Which of the following best describes the function of the superior, middle, and inferior nasal conchae?

Accepted Answer

They cause turbulent airflow to warm, humidify, and filter incoming air.

Question 6

A patient with a deviated nasal septum may experience difficulty breathing. Which bones and structures form the nasal septum?

Accepted Answer

Perpendicular plate of ethmoid bone, vomer, and septal cartilage

Question 7

Which of the following cartilages forms a complete ring around the airway and is unique among the laryngeal cartilages?

Accepted Answer

Cricoid cartilage

Question 8

During swallowing, which structure closes the laryngeal opening to prevent food from entering the airway?

Accepted Answer

Epiglottis

Question 9

Which region of the pharynx is directly posterior to the nasal cavity and lined with pseudostratified ciliated columnar epithelium?

Accepted Answer

Nasopharynx

Question 10

A patient with chronic sinus infections is found to have blocked paranasal sinuses. What is the primary function of the paranasal sinuses?

Accepted Answer

To lighten the skull and produce mucus

Question 11

Which of the following best explains why the nasal cavity is lined with pseudostratified ciliated columnar epithelium?

Accepted Answer

To trap and move airborne particles out of the respiratory tract

Question 12

If the laryngeal prominence is more pronounced in a patient, which cartilage is responsible for this feature?

Accepted Answer

Thyroid cartilage

Question 13

Which of the following is a correct sequence of airflow through the upper respiratory tract?

Accepted Answer

External nares → nasal cavity → pharynx → larynx

Question 14

A patient inhales a small particle that becomes trapped in the mucus of the nasal cavity. Which mechanism is primarily responsible for moving this particle toward the pharynx?

Accepted Answer

Ciliary action of the respiratory epithelium

Question 15

Which of the following best describes the role of the larynx in the respiratory system?

Accepted Answer

It provides an open airway, routes air and food, and produces sound.

Question 16

Which of the following equations best represents the process of gas exchange in the alveoli?

Accepted Answer

$$O_2 ($$air) + $$CO_2 ($$blood) \rightarrow $$O_2 ($$blood) + $$CO_2 ($$air)$$

Question 17

A patient with dehydration is experiencing thickened mucus in the respiratory tract. Which function of the respiratory system is most directly affected?

Accepted Answer

Mucous secretion for trapping particles and preventing dehydration

Question 18

Which of the following statements about the cricoid cartilage is TRUE?

Accepted Answer

It is the only laryngeal cartilage that forms a complete ring.

Question 19

A patient is unable to produce sound after a laryngeal injury. Which structure is most likely damaged?

Accepted Answer

Vocal ligaments within the larynx

Question 20

Which of the following best explains why the nasal conchae are important for respiratory health?

Accepted Answer

They increase the surface area to warm, humidify, and filter air before it reaches the lungs.

The Respiratory System: Structure and Function

Guida di studio - Domande di pratica

Study guide - Flashcard