Histo Respiratory system
Respiratory System Histology Quiz
Test your knowledge of the respiratory system with this comprehensive histology quiz! Dive into questions about the structure and fun
- 23 detailed questions
- Multiple-choice format
- Covers key concepts and terminology in respiratory histology
Bronchioles
Posses no cartilage in their wall
Smaller than 1mm diameter have clara cells
Terminal constitute the terminus of the conducting portion
Their structure is similar to bronchi
Are lined with pseudostratified columnar epithelium
Which cells produce surfactant in lungs?
Pneumocytes type I
Goblet cells
Pneumocytes type II
Brush cells
Dust cells
Respiratory portion of respiratory system includes
Respiratory bronchioles
Alveolar sacs
Olfactory region of nasal cavity
Bronchi
Which answers regarding alveoli are true?
Type I pneumocytes make up 97% of alveolar surface
Its wall consists of mucosa, submucosa and adventitia
Are seperated by interalveolar septa
Type I pneumocytes are extremely attenuated cells
Type I pneumocytes of epithelium produce surfactant
Which answers regarding alveoli are true?
Dust cells are present in lumen
Are site of gas exchange
Type I pneumocytes contain lamellar bodies
Possesses in cytoplasm opening called pores of Kohn
Surfactant of alveoli consists of mucous
Which answers regarding alveoli are true?
Lamellar bodies give rise to pulmonary surfactant
Type II pneumocytes are interspersed among type I pneumocytes
Surfactant and pneumocytes type I cytoplasm are part of blood-gas barrier
Are lined with simple squamous epithelium
Which answers regarding type II pneumocytes are true?
Produces surfactant
Exhibit mitotic activity
Is called alveolar type II cell
Creates almost whole wall of alveolus
Forms blood-air barrier
Which answers regarding type II pneumocytes are true?
Protect against oxidative pollutants
Phagocyte lamellar bodies taken from alveolar lumen
Has many organelles
Possesses in cytoplasm opening called pores of Kohn
Its typical features are lamellar bodies
Which answers regarding nasal cavity are true?
Internal portion is called nasal fossae
External portion is called vestibule
Superior conchae is covered by olfactory epithelium
Mucosa of vestibule contains vibrissae
Inferior conchae is covered by olfactory epithelium
Which answers regarding nasal cavity are true?
Inferior conchae is covered by olfactory epithelium
In mucosa are lamellar bodies
Covering mucus acts as trap unneeded particulate
Acts as area needed for conditioning of inspired air
In mucosa of nasal fossae there are swell bodies
What is included in the interalveolar septa?
Dust cells
Elastic fibers
Elastic cartilage
Leucocytes
Fibroblasts
What is included in the interalveolar septa?
Fibrocytes
Sinusoidal capsules
Reticular fibers
Dense network of capillaries
Macrophages
Ventilation process is because of
Contraction of diaphragm
Contraction of intercostal muscles
Presence of hyaline cartilage plates in bronchi
Movement of cilia of respiratory system
Different pressure of oxygen and carbon dioxide in air passages and external environment
What are clara cells?
Cells that apically possess cilia
Cuboidal in shape
Lack of RER
Present in respiratory bronchioles
What are clara cells?
Produce many proteins with enzymatic activity
Can be found in alveolar septa
Are called bronchiolar exocrine cells
Detoxifies potentially harmful compounds of air
What are clara cells?
Protects respiratory system against oxidative pollutants
Possess many lamellar bodies
Produce among others lyzosome
Cells that belong to typical ions-pumping cells
Secretion of surfactant lipoproteins and mucins in the fluid layer on the epithelial surface
Bronchus
The goblet cells are the only one glandular cells type of their wall
Contains in epithelium the clara cells
Segmental are in number: 10 in right, 8 in left
Contains goblet cells in epithelium
Possess diameter higher than about 1mm
Bronchus
In the wall contains glands
The largest one histologically is very similar to trachea
Its lumen is covered by surface-active agent of surfactant
Segmental are in number: 10 in left, 8 in right
Segmental bronchi arise from terminal bronchioles
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