A&P2 Respiratory Flashcards
What are the extra duties of the respiratory system?
Regulate blood pH Smell receptors Filter air Produce sounds Expel heat/water
What are the components of the respiratory system?
Nose Pharynx Larynx Trachea Bronchi Lungs
Respiratory system can be categorized into what two categories?
Structural
Functional
What does the structural category contain?
URT; nose, nasal cavity, pharynx, associate structures
LRT; larynx, trachea, bronchi, lungs
What does the functional category contain?
Conducting zone- filtration, warming and moistening of air
Respiratory zone: tube/tissue in lung that exchanges gas
What structures does the Conducting Zone contain?
Nose Nasal cavity Pharynx Larynx Trachea Bronchi Bronchioles Terminal bronchioles
What structures does the Respiratory zone contain?
Respiratory bronchioles
Alveolar ducts
Alveolar sacs
Alveoli
What are the three components that make up the nasal cartilaginous and framework?
What do they provide?
Septal nasal
Lateral nasal
Alar cartilage
External nose flexibility
Where is the nasal cavity located?
Inferior to nasal bone
Superior to maxilla
What does the nasal cavity merge with anteriorly/posteriorly?
Ant- External nose
Post- internal nares->pharynx
What two areas drain into the nasal cavity?
Paranasal sinuses
Nasolacrimal ducts
What makes up the roof, floor and lateral walls of the nasal cavity?
Roof: ethmoid
Floor: Palatine/maxillae processes
Lateral: ethmoid, maxillae, lacrimal, palatine, inferior nasal concha
Where/what is the nasal vestibule?
Anterior portion of nasal cavity in side of nostrils
What makes the nasal septum?
Hyaline cartilage
Ethmoid perpendicular plate, vomer
What are the purposes of the sinus cavities?
Produce/drain mucus
Voice resonation
Facial structure
Which way do turbinates face?
Lateral to medial
What are the spaces between the turbinates called?
Meatuses
What structures of the nose help catch water on exhalation to help prevent dehydration?
Mucus membranes lining conchae
3 functions of the turnbinates?
Warm incoming air
Moisten air
Trap dust
Where does the pharynx start and end?
Internal nares
Level of cricoid cartilage
What type of muscle make sup the wall of the pharynx?
Skeletal
Inner- longitudinal
Outer- circular
Relaxation of pharynx muscles aid with ____ while contraction aids with _____
Relax= patentcy Contract= deglutition
What are the 3 anatomical regions of the pharynx?
Nasopharynx
Oropharynx
Laryngo/Hypopharynx
What are the 5 openings in the nasopharynx?
Two internal nares
Two eustacian tubes
One oropharynx