Week 9 - Respiratory System Anatomy Flashcards
What makes up the upper respiratory tract
Nasal cavity
Pharynx
Larynx
Lower respiratory tract
Trachea
Primary bronchi
Lungs
What makes up the pharynx in an inferior direction and what are their boundaries
Nasal pharynx - base of skull -> soft palate (uvula)
Oropharynx - uvula -> epiglottis
Laryngopharynx - epiglottis -> bifurcation between oesophagus and trachea
Physical differences between L and R lungs
Right is:
Shorter
More vertical
Greater diameter
More likely to uptake the right bronchus
More of a continuation of trachea
A continuation of respiratory epithelium
Made of 3 lobes instead of just 2
What are paranasal sinuses
Air filled cavities beside the nose
Type of epithelium in the bronchi
Pseudostratified ciliated columnar epithelium with goblet cells
How does epithelium vary as it descends towards the alveoli
ciliated columnar
->
ciliated cuboidal
->
Ciliated and non-ciliated cuboidal
->
Ciliated and non-ciliated cuboidal with type 1 pneumocytes
->
Type I pneumocytes and type II pneumocytes
What is the role of surfactants
increase lung compliance and prevent collapse of lungs at end of expiration
When are surfactants produced by fetus
wk24-28 with enough production occurring by wk34
Names of 3 lobes (R)
Superior lobe
Middle lobe
Inferior lobe
Fissure that separates the middle and superior lobe
horizontal fissure
fissure that separates the superior and inferior fissure
oblique fissure
What does the pulmonary ligament consist of
Folds of pleura
What is percussion
Tapping the body to elicit sounds and determining whether the sounds are appropriate for a particular organ or area of the body
Auscultation
Listening using stethascope
