Chapter 25: Respiratory System Flashcards
What are the 5 functions of the respiratory system?
- Air passageway
- Gas exchange
- external respiration
- internal respiration - Gas conditioning
- Detection of odors (adaptation)
- Sound production
Name the two divisions of the respiratory system.
- Structural
- upper respiratory tract
- lower respiratory tract - Functional
- conducting
- respiratory
List the structural organization of the upper and lower respiratory tract.
URT
- nose
- nasal cavity
- pharynx
LRT
- larynx
- trachea
- bronchi
- bronchiole
- terminal brochioles
List the functional organization of the conducting and respiratory zone.
Conducting Zone:
- nose
- nasal cavity
- pharynx
- larynx
- trachea
- bronchi
- bronchiole
- terminal bronchiole
Respiratory Zone:
- respiratory bronchiole
- alveolar duct
- alveoli
Identify the hills and valleys of the nose/nasal cavity.
Hills (green)
- Superior nasal concha
- Middle nasal concha
- Inferior nasal concha
Valleys (pink)
- Superior meatus
- Middle meatus
- Inferior meatus
Name the paranasal sinuses.
- Frontal
- Ethmoidal
- Sphenoidal
- Maxillary
List the structures of the pharynx superior to inferior.
- Nasopharynx
- Oropharynx
- Laryngopharynx
Identify the structures of the nasopharynx and the tissue type.
- superior to soft palate
- Auditory tubes in lateral walls
- single pharyngeal tonsil (adenoids)
Tissue type: pseudostratified ciliated columnar epithelium
Identify the structures of the oropharynx and the tissue type.
- Soft palate to hyoid bone
- Palatine tonsils
- Linguinal tonsils at base of tongue
Tissue type: nonkeritanized stratified squamous epithelium (for abrasion)
Identify the structures of the laryngopharynx and the tissue type.
- Inferior to hyoid bone to superior boarder of esophagus
- Esophagus
Tissue type: nonkeratinized stratified squamous epithelium
List the components of the LRT conducting portion.
Larynx (voicebox) > trachea (wind pipe) > bronchi > bronchioles
List the components of the LRT respiratory portion.
respiratory bronchioles > alveolar ducts > alveoli
Identify the larynx major cartilages.
Thyroid cartilage
- largest cartilage
- laryngeal prominence (Adam’s Apple)
Identify the larynx major cartilage.
Cricoid cartilage
- ring shaped cartilage
- inferior to thyroid cartilage
Identify the larynx major cartilage.
Epiglottis
- projects superiorly into pharynx
- deglutittion
List the minor cartilages of the larynx.
Pink: corniculate cartilage
Orange: arytenoid cartilage