Prelim | L1: Mastery of Respiratory System Anatomy with Radiologic Correlation Flashcards
The respiratory system shares the responsibility of (1) and (2) (Gas exchange)
- supplying the body with oxygen
- eliminating CO2
MAJOR ORGANS AND STRUCTURES
Nose
Pharynx
Larynx
Trachea
Bronchi
Lungs
ACCESSORY STRUCTURES
Diaphragm
Sinuses
The respiratory system is classified according to:
- Structure
- Function
Subdivisions of the Structural division
- Upper Respiratory System
Main: Nose, Pharynx
Subparts: Others - Lower Respiratory System
Main: Larynx
Accessory: Diaphragm
Subdivisions of the Functional division
- Conducting Zone
- Respiratory Zone
Filter, warms, moistens air
Conducting zone
The conducting zone is the entry point to the —
alveoli
Structures involved with gas exchange
Respiratory Zone
Entry point of air into respiratory system
External Nares
Start and end point of the internal nares
From nasal cavity to pharynx
Common passageway for air and food
Pharynx
Location (found) and area (extends to and from) of the nasopharynx
Posterior to nasal cavity
Nasal cavity → soft palate
Location (found) and area (extends to and from) of the oropharynx
Posterior to the oral cavity
Soft palate → level of hyoid bone
Location (found) and area (extends to and from) of the laryngopharynx
Inferior division of the pharynx
Level of the hyoid bone → Larynx opening
Separates nasal and oral cavity
Palate
Most posterior part of the palate
Soft palate
Prevents food and liquid from entering the larynx
Epiglottis
The hyoid bone functions as an attachment point for muscles of the (1), (2), and (3)
- tongue
- neck
- pharynx
Conducting passageway for air
Trachea/ windpipe
Double-layered membrane that covers the surface of the lungs
PLEURA/ PLEURAL MEMBRANE
In between the layers of the pleura are spaces called (1) which contains (2)
- pleural cavity
- pleural fluid