Histology 111-Respiratory System

Created by fernandovigil Teacher

33 terms · Exam 2

Which cell is a also called a septal cell?
a. Clara cell
b. Type I pneumocyte
c. Type II pneumocyte
d. Dust cell
e. Brush cell

c. Type II pneumocyte
The Clara cell is found in the terminal bronchioles. The type I pneumocyte is a squamous epithelial cell. It covers most of the surface of the alveoli. The type II pneumocyte is also called a septal cell. The type II pneumocyte secretes surfactant. The dust cell is also called the alveolar phagocyte. Brush cells are occasionally, but rarely, seen in the alveolar epithelium.

Which cell is a respiratory macrophage?
a. Kupffer cells
b. Histiocyte
c. Dust cell
d. Langerhans cell
e. Microglia

c. Dust cell
Kupffer cells are the hepatic macrophages. Histiocytes are macrophages seen in connective tissue. Dust cells are alveolar macrophages found in the respiratory tract. Langerhans cells are macrophages seen in the skin. Microglia are the central nervous system macrophages.

Which cell is a type of neuron?
a. Basal cells
b. Brush cells
c. Olfactory cells
d. Sustentacular cells
e. All of the above

c. Olfactory cells
Olfactory cells are bipolar neurons that are the receptors for smell.

What cell types are found in the respiratory mucosa?
a. Ciliated cells
b. Goblet cells
c. Basal cells
d. Brush cells
e. All of the above

e. All of the above

What type of tissue makes up the epiglottis?
a. Compact bone
b. Spongy bone
c. Hyaline cartilage
d. Fibrocartilage
e. Elastic cartilage

e. Elastic cartilage
The epiglottis is part of the larynx. It is composed of elastic cartilage.

What is the smallest airspace of the respiratory tree?
a. Alveolar duct
b. Alveoli
c. Alveolar sac
d. Respiratory bronchiole
e. Terminal bronchiole

b. Alveoli

What type of epithelium lines the trachea?
a. Simple squamous epithelium
b. Simple cuboidal epithelium
c. Simple columnar epithelium
d. Stratified squamous epithelium
e. Pseudostratified epithelium

e. Pseudostratified epithelium

What type of epithelium lines the vestibule?
a. Simple squamous epithelium
b. Simple columnar epithelium
c. Stratified squamous epithelium
d. Ciliated pseudostratified epithelium with goblet cells
e. Transitional epithelium

c. Stratified squamous epithelium

Which cartilage of the larynx is made of hyaline cartilage?
a. Thyroid cartilage
b. Cricoid cartilage
c. Arytenoid cartilage
d. Corniculate cartilage
e. All of the above

e. All of the above
The larynx is composed of several cartilages. The thyroid cartilage, cricoid cartilage, arytenoid cartilages, corniculate cartilages and cuneiform cartilages are all composed of hyaline cartilage. The epiglottis is elastic cartilage. There is no fibrocartilage in the larynx.

What part of the respiratory tree is the functional unit where gas exchange occurs?
a. Alveolar duct
b. Alveoli
c. Alveolar sac
d. Respiratory bronchiole
e. Terminal bronchiole

b. Alveoli

Which cell type is involved in general sensation of the olfactory mucosa?
a. Basal cells
b. Brush cells
c. Olfactory cells
d. Sustentacular cells
e. All of the above

b. Brush cells
Olfactory mucosa lines the roof and portions of the walls of the nasal cavity. It contains several cell types: basal cells, brush cells, olfactory cells and sustentacular cells.
Brush cells are involved with general sensation of the olfactory mucosa.

What type of cells are found in the olfactory mucosa?
a. Basal cells
b. Brush cells
c. Olfactory cells
d. Sustentacular cells
e. All of the above

e. All of the above

What type of tissue makes up the rings of the trachea?
a. Compact bone
b. Spongy bone
c. Hyaline cartilage
d. Fibrocartilage
e. Elastic cartilage

c. Hyaline cartilage

Which cell is a squamous pulmonary epithelial cell?
a. Clara cell
b. Type I pneumocyte
c. Type II pneumocyte
d. Dust cell
e. Brush cell

b. Type I pneumocyte
he Clara cell is found in the terminal bronchioles. The type I pneumocyte is a squamous epithelial cell. It covers most of the surface of the alveoli. The type II pneumocyte is also called a septal cell. The type II pneumocyte secretes surfactant. The dust cell is also called the alveolar phagocyte. Brush cells are occasionally, but rarely, seen in the alveolar epithelium.

Which cell is also called an alveolar phagocyte?
a. Clara cell
b. Type I pneumocyte
c. Type II pneumocyte
d. Dust cell
e. Brush cell

d. Dust cell

Which is structure is NOT part of the conducting portion of the airway?
a. Bronchi
b. Larynx
c. Trachea
d. Larynx
e. Respiratory bronchioles

e. Respiratory bronchioles
The conducting portion of the airway is where air is moved, warmed and moistened. The nasal cavities, pharynx, larynx, trachea and bronchi are all part of the conducting portion of the airway.

The respiratory portion of the airway is where gas exchange occurs. The respiratory bronchioles, alveolar ducts, alveolar sacs and alveoli are all part of the respiratory portion.

What type of tissue lines the pharynx?
a. Simple squamous epithelium
b. Simple columnar epithelium
c. Stratified squamous epithelium
d. Ciliated pseudostratified epithelium with goblet cells
e. Both c and d

e. Both c and d
The pharynx is lined by both stratified squamous epithelium and ciliated pseudostratified epithelium with goblet cells.

What is an olfactory cell?
a. Unipolar neuron
b. Bipolar neuron
c. Multipolar neuron
d. Supporting cell
e. None of the above

b. Bipolar neuron

Which type of cartilage is found in the larynx?
a. Hyaline cartilage
b. Elastic cartilage
c. Fibrocartilage
d. Both a and b
e. All of the above

d. Both a and b

What structure is similar to a "bunch of grapes?
a. Alveolar duct
b. Alveoli
c. Alveolar sac
d. Respiratory bronchiole
e. Terminal bronchiole

c. Alveolar sac

Which cell is found in large numbers in the terminal bronchioles?
a. Clara cell
b. Type I pneumocyte
c. Type II pneumocyte
d. Dust cell
e. Brush cell

a. Clara cell

Which cell type is located at the basal lamina of the olfactory mucosa?
a. Basal cells
b. Brush cells
c. Olfactory cells
d. Sustentacular cells
e. All of the above

a. Basal cells

Which cell type is most numerous in olfactory mucosa?
a. Basal cells
b. Brush cells
c. Olfactory cells
d. Sustentacular cells
e. None of the above

d. Sustentacular cells

What type of epithelium is found in the respiratory mucosa of man?
a. Non-ciliated pseudostratified columnar epithelium with goblet cells
b. Ciliated pseudostratified columnar epithelium with goblet cells
c. Simple columnar epithelium
d. Stratified squamous epithelium
e. Transitional epithelium

b. Ciliated pseudostratified columnar epithelium with goblet cells
In man, respiratory mucosa is composed of ciliated pseudostratified columnar epithelium with goblet cells. Respiratory mucosa contains several cell types: ciliated cells, goblet cells, basal cells, and brush cells. Respiratory mucosa is located lining the respiratory segment of the nasal cavity. It lines the conchae and the paranasal sinuses.

What type of tissue makes up the "Adam's apple"?
a. Compact bone
b. Spongy bone
c. Hyaline cartilage
d. Fibrocartilage
e. Elastic cartilage

e. Elastic cartilage
The "Adam's apple" is a nickname for part of the larynx formed by the thyroid cartilage. The thyroid cartilage is composed of hyaline cartilage.

What type of tissue forms the alveoli in the lung?
a. Simple squamous epithelium
b. Simple cuboidal epithelium
c. Simple columnar epithelium
d. Stratified squamous epithelium
e. Pseudostratified epithelium

a. Simple squamous epithelium
The alveoli are formed by simple squamous epithelium. Epithelium lines body cavities and surfaces. Simple squamous epithelium is "simple" because it is one cell thick. "Squamous" refers to the fact that the cells are flat.

What type of tissue lines the paranasal sinuses?
a. Simple squamous epithelium
b. Simple columnar epithelium
c. Stratified squamous epithelium
d. Ciliated pseudostratified epithelium with goblet cells
e. Transitional epithelium

d. Ciliated pseudostratified epithelium with goblet cells
The paranasal sinuses are lined by ciliated pseudostratified epithelium with goblet cells.

In which structure does gas exchange NOT occur?
a. Alveolar duct
b. Alveoli
c. Alveolar sac
d. Respiratory bronchiole
e. Terminal bronchiole

e. Terminal bronchiole

Which cell secretes surfactant?
a. Clara cell
b. Type I pneumocyte
c. Type II pneumocyte
d. Dust cell
e. Brush cell

c. Type II pneumocyte

Which cartilage of the larynx is made of elastic cartilage?
a. Thyroid cartilage
b. Cricoid cartilage
c. Arytenoid cartilage
d. Epiglottis
e. Corniculate cartilage

d. Epiglottis

Which cell is rarely found in the alveolus?
a. Clara cell
b. Type I pneumocyte
c. Type II pneumocyte
d. Dust cell
e. Brush cell

e. Brush cell
Brush cells are occasionally, but rarely, seen in the alveolar epithelium.

What are the alveolar pores called?
a. Pores of Luschka
b. Pores of Descemet
c. Pores of Mall
d. Pores of Kohn
e. Pores of Disse

d. Pores of Kohn
The alveolar pores are the pores of Kohn. These are openings between adjacent alveoli.

What is the first portion of the respiratory tree where gas exchange can occur?
a. Alveolar duct
b. Alveoli
c. Alveolar sac
d. Respiratory bronchiole
e. Terminal bronchiole

d. Respiratory bronchiole

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