Respiratory (Friedman) Flashcards
components of the respiratory system
- nose 2. pharynx 3. larynx 4. trachea 5. bronchi 6. lungs
function
smell, warms air, collect and remove dust, mucus production: moisten air
sinusitis
Sinus inflammation
sinus headache
blockage of passage between nasal cavity and sinuses because of high mucus (creates vacuum)
pharynx
subular structure connecting nasal passage to larynx
larynx
rings of hyaline cartilage, vocal cord, epiglottis: gateway to digestive system and respiratory system
trachea
tubular structure in front of the esophagus, contains hyalin cartilage to keep it open
brochi
branching from trachea to left and right lungs
bronchioles
further branching as it enters the lungs
lungs
occupy the thoracic cavity - situated on top of the diaphragm
thoracic cavity
pulmonary pleura, parietal pleura, & pleural space
pulmonary pleura
membrane layer surrounding the lung
parietal pleura
membrane layer surround the thoracic cavity
pleural space
space between pulmonary & parietal pleura
alveoli
air sace where gas exchange take place
4 respiratory physiology
- pulmonary ventilation (inhalation & ehalation) 2. external respiration 3. respiratory gas transport 4. internal respiration
inhalation
contraction of diaphragm/intercostal muscles leads to increase in thoracic cavity - diaphragm flattens
air pressure (inhalation)
decrease in pressure INSIDE - atmosphere air pressure INCREASES
exhalation
respiratory muscles relax - volume of thoracic cavity decreases
air pressure (exhalation)
Increased pressure INSIDE - atmosphere air pressure is below inside’s
gas exchange between alveoli and blood
external respiration
air in alveoli
high in oxygen - low in CO2
blood comes from heart
high in CO2 - low in oxygen
gas exchange between blood and tissue
internal respiration
