Upper Airway Anatomy Quiz

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Questions and Answers

What is the function of the olfactory mucous membrane?

Secretion of mucus

Detection of smells (correct)

Protection of the nose lining

Aiding in breathing

Which structure separates the nasal cavity?

Hyline cartilage

Nasal bone

Septum (correct)

Nasal conchae

How many types of paranasal sinuses are mentioned in the text?

Seven

Five

Six

Four (correct)

What component of the nose is lined with modified skin and coarse hair?

External nose Signup and view all the answers

Where are the turbinates located in the nose?

On the lateral walls of the nasal cavity Signup and view all the answers

What is the main function of the vocal folds?

To act as a primary source of sound production Signup and view all the answers

What is the bony part above the nasal cavity?

Frontal bone Signup and view all the answers

How many rings make up the right main bronchi?

8 Signup and view all the answers

What is the approximate diameter of the trachea?

2.5 cm Signup and view all the answers

Which ligament prevents swallowed material from moving into the larynx?

Vestibular fold and ligament Signup and view all the answers

What is the extrinsic function of the muscles that move the larynx and vocal cords?

To move the larynx and vocal cords Signup and view all the answers

Why are the right main bronchi shorter, wider, and have fewer rings compared to the left?

Due to anatomical differences such as being more vertical Signup and view all the answers

What is the main function of the respiratory mucous membrane in the nose passage?

Cleansing the air Signup and view all the answers

Which part of the pharynx opens to the trachea inferiorly?

Laryngopharynx Signup and view all the answers

What is the function of the Eustachian tube?

Balancing air pressure Signup and view all the answers

Which region of the larynx is responsible for sound production?

Glottis Signup and view all the answers

Which structures compose the sphincter located below the tongue and oral cavity?

Cartilages, membranes, and muscles Signup and view all the answers

How many cuneiform cartilages are present in the larynx?

Five Signup and view all the answers

Study Notes

Upper Airway Components

Consists of: nose, para-nasal sinuses, pharynx, and larynx
Para-nasal sinuses: 8 in total, including maxillary, frontal, ethmoidal, and sphenoid sinuses
Nose: external nose, nostrils, septum, nasal cavity, and vestibule
Pharynx: composed of three parts: nasopharynx, oropharynx, and laryngopharynx

Bony Part of the Nose

Nasal bone: forms the upper part of the nasal cavity
Nasal part of the frontal bone: forms the upper part of the nasal cavity
Frontal part of the maxilla: forms the upper part of the nasal cavity

Hyaline Cartilage

Forms the lower part of the nasal cavity
Lined with mucous membrane containing olfactory nerve endings

Larynx and Vocal Cords

Muscles that move the larynx and vocal cords are extrinsic and intrinsic
Functions of larynx: maintain an open passageway for air movement, prevent swallowed material from entering the larynx, and are the primary source of sound production
Vocal folds: responsible for sound production

Lower Respiratory Tract

Consists of: trachea, bronchi, bronchioles, and alveoli
Trachea: approximately 2.5 cm in diameter, 12 cm long, and shaped like a C with 20 rings
Bronchi: right and left main bronchi, with the right being shorter and wider with fewer rings

Bronchi and Trachea

Main bronchi: right and left, with the right having approximately 8 rings and the left having approximately 12 rings
Trachea extends from the larynx superiorly to bifurcate into the right and left main bronchi inferiorly

Respiratory Mucous Membrane

Functions: cleanse the air, humidify, warm, and facilitate smell
Found in the trachea, bronchi, and bronchioles

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Description

Test your knowledge on the components of the upper airway, including the nose, para nasal sinuses, pharynx, and larynx. Identify structures such as external nose, nostrils, septum, nasal cavity, turbinates, and various sinuses.