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Respiratory System (RS) Pablo Collazo Period 1 - Coggle Diagram
Respiratory System (RS)
Pablo Collazo
Period 1
Major Functions of RS
Supply body with O2 for cellular respiration
Dispose CO2 of cellular respiration
Functions in olfaction and speech
Upper RS Structures
Nose and
nasal cavity
Produces mucus; filters, moistens and
warms incoming air; resonance chamber for speech
Paranasal sinuses
Mucosa-lined and air filled cavities that surround nasal cavity.
Lighten skull and may warm, moisten and filter too.
Pharynx
Connects nasal cavity to larynx and oral cavity
to esophagus. Provides passage for air and food
Oropharynx (food & air)
Laringopharynx (food & air)
Nasopharynx (air)
Contains tonsils that facilitate exposure to
inhaled antigens
Lower RS Structures
Conducting Zone
Trachea (windpipe)
Mucosa
Ciliated pseudostratified
with goblet cells
Submucosa
Supported by 16-20 cartilage rings
to prevent collapse of trachea
CT with seromucous glands to help
produce mucus "sheets" within trachea
Adventitia
Outermost layer;
made of CT
Carina
Last tracheal cartilage
where 2 bronchi branch
Bronchi
R and L main (primary) bronchi
Lobar (secondary) bronchi
Segmental (tertiary) bronchi
Bronchioles and Terminal bronchioles
Lungs
Apex
Superior tip, deep to clavicle
Costal surface
Anterior, lateral and posterior surfaces
Base
Inferior surface that rests on diaphragm
Root
Vascular and bronchial attachment to mediastinum
Hilum
Exit/entry of blood vessels, bronchi, lymphatic vessels, and nerves
Left lung
S and I lobes; oblique fissure; has cardiac notch
Right Lung
S M and I lobes; horizontal fissure and oblique fissure
Larynx
9 cartilages
Epiglottis
Prevents food to enter the lower RS
Thyroid cartilage
Cricoid cartilage
Paired arytenoid cartilages
Paired cuneiform cartilages
Paired corniculate cartilages
Connects pharynx to trachea; made of cartilage
and dense CT; prevents food from entering Lower RS and produces voice
Respiratory Zone
Respiratory Bronchioles
Alveolar Ducts
Alveolar Sacs (Saccules)
Alveoli
Respiratory Membrane
Consists of alveolar and capillary walls
along with their fused membranes. Allows gas exchange
Layers of Pleurae
Parietal Pleurae
On thoracic wall, superior face of diaphragm,
around heart, and between lungs
Visceral Pleurae
On external lung surface
Pleurae Fluid
Fills pleural cavity and provides lubrication
that assists in expansion and recoil of lungs
Inspiration and Expiration