respiratory system Flashcards
ventilation
(breathing)
the overall exchange of gases btw the atmosphere, blood, and cells
external respiration
(pulmonary) the exchange of respiratory gases btw lungs and blood
Internal respiration
(tissue) the exchange of respiratory gases btw blood and body cells
cellular respiration
occurs in mitochondria and is oxidation of glucose to produce ATP
when you burn things you get?
carbon monoxide
larynx is your?
voice box
laryngitis
an inflammation of your voice box (larynx) from overuse, irritation or infection
alveoli
functional unit of the lung
respiratory system consists of the
nose
pharynx (throat)
larynx (voice box)
trachea (windpipe)
bronchi
lungs
upper respiratory system
nose
nasal cavity
pharynx
and associated structures
lower respiratory system
larynx
trachea
bronchi
lungs
inhalation (inspiration)
breathing in
air pressure inside the lungs is equal to air pressure of the atmosphere
exhalation (expiration)
breathing out
pressure in lungs is greater than pressure of atmosphere
alveoli is surrounded with ________ to exchange oxygen with _________
capillaries
CO2
Alveoli has
air space with moisture but NOT wet
Macrophages are not suppose to be in ?
alveoli
surfactants
hold alveoli open to receive air
mixture of lipoproteins and phospholipids present in alveolar fluid reduces its surface tension below the surface tension of pure water
prevents alveoli from collapsing
pneumonia
fluid in alveoli making it hard to breath and can collapse alveoli when fluid comes out
external costal and diaphragm
expands size of thoracic cavity causing inhalation
internal costal and diaphragm
reduces size of thoracic cavity causing expiration
how many times do we breath per minute?
x14
Tidal volume
normal resting breathing
spirometer
measures volumes and capacities
looks to see your vital capacity
vital capacity
sum of inspiratory reserve volume, tidal volume, and expiratory reserve volume