L16 Anatomy of respiratory tract Flashcards
*this is not detailed* only key bits, see powerpoint for detail
what does upper resp tract consist of
nose, paranasal sinuses
pharynx
larynx
functional adaptations of the nose
Vibrissae - hairs
Conchae - divides nose, change air flow
Mucosa - goblet cells + cilia
Rich capillary network underlying the mucosa - warms air
Olfactory mucosa - smell receptors
Paranasal sinuses(not rly an adaptation cuz they dont even know for sure what it does but anyway)
what is pharynx divided into
nasopharynx
oropharynx
laryngopharync
what is only complete ring of cartilage in larync
cricoid cartilage
where do vocal chords attach to
arytenoid cartilage
what is lower resp tract made up of in series
trachea
primary bronchi
secondary bronchi
tertiary bronchi
bronchioles
terminal bronchioles
respiratory bronchioles (where gas exchange starts)
alveolar ducts
alveolar sacs
alveoli
where does trachea birfurcate
at carina into the primary bronchi
what are posterior ends of cartilage joined by
trachealis muscle
what type of epithelium in trachea
pseudostratified ciliated
columnar epithelium
whats diff about right primary bronchi compared to left
right is wider and more vertical
cuz left has to go over the heart
where does cartilage end
at bronchioles
what cells in terminal bronchioles produce surfactant
clara cells
where does goblet cells end
in terminal bronchioles
where does cilia end
in respiratory bronchioles
what type of epitherlium in alveolar cells
simple squamous epithelium
