Respiratory Flashcards
Humidifies the air that we breathe and is brought to the lungs
Conducting Portion
Area of GAS EXCHANGE
Respiratory Portion
LAYERS
Includes the epithelial lining and the underlying lamina
propria
Mucosa
LAYER MUCOSA (respiratory epithelium)
Pseudostratified ciliated columnar epithelium WITH GOBLET CELLS
Loose connective tissue containing mixed glands
Submucosa
Formed by hyaline cartilage + smooth muscle
Cartilage Layer
Fibroelastic connective tissue
Adventitia
Nasal Cavity
Vestibule lining
Stratified squamous nonkeratinized epithelium
acts as a filter for the air that we inhale
Vibrissae
separator of the nasal cavity (in two chambers)
Nasal Septum
located on the lateral walls of nasal cavities
Conchae
Respiratory Epithelium lining
Pseudostratified ciliated columnar epithelium
Respiratory Epithelium
→ 1st most abundant
Ciliated Columnar Cells
Respiratory Epithelium
2nd most abundant
Mucous Goblet Cells
Sensory/Receptor cells (chemosensory receptors)
Brush Cells (Columnar cells with microvilli)
Identifies harmful substances in its lining
epithelium
Brush Cells (Columnar cells with microvilli)
A part of the DNES / Diffuse Neuroendocrine
System
Kulchitsky Cells / Small Granule Cells
Stem cells / Progenitor cells that give rise to other
epithelial cells
Basal Cells
Consists of the Olfactory Epithelium
Olfactory Region - “Smell Receptors”
Olfactory region anatomical location
roof of the nasal fossa
Olfactory Epithelium →
Pseudostratified Columnar Epithelium WITHOUT Goblet Cells
Olfactory Neurons also known as
Olfactory Cells
Functions as stem cells → replacing olfactory neurons and support cells
Basal Cells
Comprises of a light-yellow pigment which gives color to the olfactory mucosa
Sustentacular Cells / Supporting Cells