Upper respiratory system:

Chronic Obstructive Pulmonary Disease (COPD): history of smoking, labored breathing, cough and infections, respiratory failure; insufficient oxygen in tissues

Emphysema: Chronic inflammation, barrel chest and lack of oxygen

Chronic Bronchitis: inflamed mucous, mucus impairs ventilation and gas exchange

Lung Cancer: 1/3 of cancer deaths in US, associated with smoking

Asthma: chronic inflamed bronchiole passages,coughing and wheezing

Cystic fibrous: to much mucus clogs up system

Pulmonary Ventilation: air is inhaled through nasal and oral cavities, carried through pharynx, larynx, and trachea to lungs (Inhalation). Air is exhaled through same ways (exhalation)

Gas Exchange: External respiration happens when oxygen diffuses from the alveoli to the pulmonary capillaries, binding to RBC and is pumped through bloodstream.

Internal Respiration: bloodstream delivers oxygen to cells and removes carbon dioxide waste

Right lung: 3 lobes, 2 bronchi, heavier, shorter and wider, provides liver space

Organs: Trachea, Primary Bronchi, Lungs, Conducting Zone, Respiratory Tract

Trachea: connects laynx w/ bronchi, provides air flow

Primary Bronchi: division of trachea, right is wider, shorter and straighter due to pressure of heart on left side

Lungs: occupy most of cavity, apex near clavicle, base rest on diaphragm, each lung divided into lobes

Conducting Zone: passage for gas, primary bronchi, 2nd bronchi, terminal bronchiloi

Organs: Nose, Nasal Cavity, Sinuses, pharynx

FUNCTION: Gas exchange between blood and external environment, passageways to lungs purify and, warm and humidify incoming air

Nose: air enters through nostrils

Nasal Cavity: Olfactory receptors located in mucosa, moistens air and traps incoming foreign particles

Paranasal Sinuses: cavities w/in bones produces mucus

Pharynx(throat): passage from nasal cavity to larynx

Left Lung: 2 lobes, 1 bronchi, lighter, longer and narrow, provides space for heart