respiratory system Flashcards
(29 cards)
ventilation
gas exchange with the atmosphere
external respiration
gas exchange between the LUNGS and BLOOD
internal inspiration
gas exchange between the BLOOD and BODY CELLS
diaphragm
muscle associated with breathing
when the muscle CONTRACTS….
a vacuum is created allowing air to rush IN
when a muscle RELAXES…..
the air is let OUT
tidal volume
quiet breathing
inspiratory reserve volume
amount above tidal volume taken in
expiratory reserve volume
amount that can be forcibly exhaled
residual volume
air left over in non collapsible passages
inspiratory capacity
inspiratory reserve volume (IRV) and total volume (TV)
vital capacity
sum of inspiratory reserve volume (IRV), total volume (TV), and expiratory reserve volume (ERV)
vital capacity + residual volume =
total lung capacity
external nares
nose (or mouth/middle ear)
pharynx
common passageway for food and air
larynx
air passageway that includes the vocal cords
epiglottis
covering off the glottis
glottis
opening to the trachea
vocal cords
voice box
trachea
air tube to the lungs
bronchi
primary tubes in the lungs
bronchioles
small bronchi
alveoli
air sacs where gas exchange occurs with the blood
oxygen poor blood….
enters the heart and goes to the lungs