Respiratory System, Conducting Flashcards
*Skeleton: Hyaline Elastic
*Glands: Mucous (pale), Seromucous (dark)
*Epithelium: True Vocal Cords (Strat. squamous, Non-keratinized)
False Vocal Cords (PSCE, aka respiratory epithelium)
Larynx
What is the order of “organs”?
- Larynx
- Trachea & Extrapulmonary Bronchi (Primary)
- Intrapulmonary Bronchi (Secondary)
- Conducting Bronchioles
- Terminal Bronchioles
- Skeleton: Hyaline (C-shaped)
- Glands: Mucous and Seromucous
- Epithelium: PSCE
Trachea & Extrapulmonary Bronchi (Primary)
- Skeleton: Hyaline (plates)
- Glands: Seromucous
- Epithelium: PSCE
Intrapulmonary Bronchi (Secondary)
- Skeleton: Smooth muscle
- Glands: None
- Epithelium: Simple columnar to simple cuboidal
Conducting Bronchioles
- Skeleton: Smooth muscle
- Glands: None
- Epithelium: Simple cuboidal
Terminal Bronchioles
Which 4 have cilia and which only has some?
The only one with some is the Terminal Bronchioles
Which have goblet cells?
Larynx, Trachea & Extrapulmonary Bronchi, Intrapulmonary Bronchi, and Conducting Bronchi (have some). Terminal have none.
- Special Features:
- Vocal cords
- Epiglottis
- Taste buds
Larynx
- Special Features:
- Trachealis muscle
- Elastic lamina
Trachea & Extrapulmonary Bronchi (Primary)
- Special Features:
- Helically-oriented ribbons of smooth muscle (requires 3D section/ confocal microscope)
Intrapulmonary Bronchi (Secondary)
- Special Features:
- Clara cells (replace goblet cells)
- Non ciliated
- Dome shaped apical surface
- Secrete surface active agent
- Prevents luminal adhesion
- Tendency to be cuboidal
Conducting Bronchioles
- Special Features:
- Clara cells
- Diameter: <0.5mm
Terminal Bronchioles
How many lobes are in the right and left lung?
Right - 3
Left - 2
