Lecture 23: Respiratory System Flashcards
- pharynx
2.frontal sinus
3.nasal cavity
4.larynx - trachea
what are components of upper respiratory system
pharynx, frontal sinus, nasal cavity
components lower respiratory system
larynx, trachea, bronchi, lungs
- maxillary bone
- nasal bone
- septal cartilage
- lateral cartilage
- alar cartilage
how is respiratory system divided structurally/
upper and lower respiratory system
how is RS divided functionally?
conducting and respiratory zone
components of conducting zone
para-nasal sinus, nose, pharynx, larynx, trachea, bronchi
components respiratory zone
lungs
fxn conducitng zone
filter air, conduct air
mucus traps airborne particles, regulate temp, adds moisture, vocalization
fxn respiratory zone
gas exchange
which two bones make up external nose?
maxillary and nasal bone
fxn nasal conchae
increase SA
what are the nasal conchae
superior, middle (part of etmoid)
and inferior (own bones)
- nasal conchar
- orbit cavity
- oral cavity
- nasal septum
what forms roof nasal cavity
ethmoid
cribriform plate
what forms floor nasal cavity
ant two third: maxilla
posterior 1 third: palatine
aka hard palate
what separates oral and nasal cavity
hard palate
maxilla and palatine
posterior nasal aperture
connects nasal cavity to pharynx
blue=frontal
red=ethmoidal sinus
3=sphenoid sinus
4=maxillary sinus
biggest sinus?
maxillary
150 mL
fxn sinuses
increase SA nasal cavity (respiratory ephithelium is continuous with cavity)
reduce weight skull
produce voice
produce mucus
what are three parts of pharynx?
yellow: nasopharyx
blue: oropharynx
red: laryngopharynx
anatomical border btw pharynx and esophagus
CVI
- pharyngeal tonsil
- pharyngotympanic tube
- palatine tonsil
- esophagus
