Chapter 25: The Respitory System Flashcards
(51 cards)
Otorhinolaryngology
Ear, nose, and throat
Pulmonologist
Diagnosis and treatment of lung disease
Primary function of the respitory system
Gas exchange
Functions of the respitory system
- gas transport and gas exchange
- gas conditioning (cleanse, humidify, and warm)
- filters inhaled air
- produces sounds (vocalization)
- oldfaction
- immune defence
- eliminates small amounts of water and heat through exhaled air
The respitory systems are seperated based on
Structure
Upper respiratory system (URT) consists of
- nose / nasal cavity
- paranasal cavity
- pharynx
- larynx
- tonsils
- associated structure
The lower respiratory system consists of
- trachea
- bronchi
- lungs
Conducting zone purpose
Filters, warms, moistens, and conducts air into the lungs
Respitory zone purpose
Sites of gas exchange
The conducting zone consists of
- nose / nasal cavity
- pharynx
- larynx
- trachea
- bronchi
- bronchioles
- terminal bronchioles
Respiratory Zone Consists of
- respitory bronchioles
- alveolar ducts
- alveolar sacs
- alveoli
The conducting and respiratory zone are seperated based on
Functions
What are the two regions of the nasal cavity
- respiratory region
- olfactory region
Conchae
Bony projections from the lateral wall of the nasal cavity
Meatuses
- air passageway between the conchae
- lined by mucous membranes
- swirl/ warm/ moisten inhaled air
- increases surface area
- prevents dehydration
What secretes mucous
Goblet cells
Paranasal sinuses and nasolacrimal duct
- secretions help moisten air
Cilia
- move mucous and trapped dust particle towards the pharynx
Nasal cavity structures
- conchae
- meatuses
- paranasal sinuses and nasolacrimal ducts
- cilia
Functions of the nose / nasal cavity
- warm, mistime and filter inhaled air
- detect olfactory
- modifies speech ad air passes through resonating chambers
Paranasal sinus functions
- sound resonance
- decreases weight of the skull
- warms, swirls, and moistens air
- sound modification
Pharynx functions
- passageway for air, liquid, and food
- resonating chambers for speech sounds
- houses tonsils (immunology)
- lined with mucosa
- contains skeletal muscles, which control swallowing
What are the tree divisions of the pharynx
- naso
- oro
- laryngo
Where is the nasopharynx located
- posterior to nasal cavity, extended to soft plate