Histology of the Respiratory System

Multiple Choice

What is the function of vibrissae in the vestibules?

• To filter large particulate matter

• To produce mucus

• To absorb oxygen

• To regulate airflow

Multiple Choice

What are the three types of cells that make up the olfactory epithelium?

• Olfactory neurons

• Supporting/sustentacular cells

• Basal cells

• All of the above

Multiple Choice

What type of epithelium lines the nasal cavity according to the image?

• Simple Squamous Epithelium

• Ciliated Pseudostratified Columnar Epithelium

• Stratified Squamous Epithelium

• Cuboidal Epithelium

Multiple Choice

What type of epithelial lining is found in the wall of the nasopharynx?

• Simple squamous epithelium

• Ciliated pseudostratified columnar epithelium

• Stratified squamous epithelium

• Cuboidal epithelium

Multiple Choice

What are the functions of the larynx as described in the image?

• Respiratory tract & phonation

• Protection of the airway

• Prevent food or fluid from entering the trachea

• All of the above

Multiple Choice

What role do basal cells play in the mucociliary escalator?

• Secrete mucus

• Stem cells for epithelium

• Contain cilia

• Absorb dust particles

Multiple Choice

What is the primary function of goblet cells in the mucociliary escalator?

• Secrete mucus

• Absorb nutrients

• Transport oxygen

• Regulate temperature

Multiple Choice

What is the primary function of the mucociliary escalator in the respiratory system?

• To cool down the air before it reaches the lungs

• To use mucus and cilia to trap and move out harmful things like dust and germs

• To exchange gases between the air and blood

• To produce sound for communication

Multiple Choice

What type of epithelium lines the larynx, except on the superior surfaces of the epiglottis and vocal folds?

• Ciliated pseudostratified columnar epithelium

• Stratified squamous nonkeratinized epithelium

• Simple cuboidal epithelium

• Transitional epithelium

Multiple Choice

What are the components of the vocal folds as shown in the diagram?

• Vocal ligament

• Ventricular fold

• Vocalis muscle

• Thyroid cartilage

Multiple Choice

What type of epithelium is found on the lingual surface of the epiglottis?

• Stratified squamous non keratinized epithelium

• Simple cuboidal epithelium

• Ciliated columnar epithelium

• Transitional epithelium

Multiple Choice

The trachea has

• a grape-like structure

• muscular contractions traveling from top to bottom

• cartilaginous rings

• a sphincter between itself and the lungs

Multiple Select

What are the main types of cells found in the respiratory epithelium of the trachea?

• Ciliated columnar cells

• Goblet cells

• Basal cells

• Granule cells

Multiple Choice

What type of epithelium is found in the wall of the trachea?

• Simple squamous epithelium

• Stratified squamous epithelium

• Pseudostratified columnar ciliated epithelium

• Cuboidal epithelium

Multiple Choice

What is the main difference between bronchi and bronchioles in terms of cartilage presence?

• Bronchi have cartilage

• Bronchioles have cartilage

• Both have cartilage

• Neither have cartilage

Multiple Choice

What type of epithelium do larger bronchioles initially have?

• Simple squamous epithelium

• Ciliated pseudostratified columnar epithelium

• Stratified cuboidal epithelium

• Simple cuboidal epithelium

Fill in the Blanks

The smallest of the tubes which branch off of the bronchioles and into the air sacs

Multiple Select

What are the functions of Alveolar type I and type II cells?

• Type I cells line the epithelium

• Type II cells secrete surfactant

• Type I cells are rounded in shape

• Type II cells are flattened cells

Poll

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