Anatomy Exam Respiratory System Anatomy 3

Question 1

The nasopharynx communicates with the middle ear through which structure?

Accepted Answer

Eustachian (auditory) tube

Answer

External auditory meatus

Answer

Internal auditory meatus

Answer

Oval window

Question 2

What is the shape of the cartilaginous rings that support the trachea?

Accepted Answer

C-shaped (horseshoe) rings of hyaline cartilage

Answer

Complete rings of hyaline cartilage

Answer

Complete rings of elastic cartilage

Answer

Irregular plates of fibrocartilage

Question 3

Which of the following correctly describes the left lung compared to the right lung?

Accepted Answer

Two lobes and a cardiac notch

Answer

Three lobes and a horizontal fissure

Answer

Two lobes and a middle lobe

Answer

Three lobes and a cardiac impression

Question 4

Type I alveolar cells (type I pneumocytes) cover approximately what percentage of the alveolar surface area?

Accepted Answer

95%

Answer

25%

Answer

50%

Answer

75%

Question 5

In an adult, the larynx is located at approximately which vertebral level?

Accepted Answer

C3–C6

Answer

C1–C2

Answer

C7–T1

Answer

T1–T4

Question 6

Which ligament connects the cricoid cartilage to the first tracheal ring?

Accepted Answer

Cricotracheal ligament

Answer

Thyrohyoid membrane

Answer

Cricothyroid ligament

Answer

Conus elasticus

Question 7

The oblique fissure of the lung runs posteriorly from approximately which vertebral level down to the sixth costal cartilage anteriorly?

Accepted Answer

T4

Answer

T2

Answer

T6

Answer

T8