respartory system Flashcards
what are the long term effects on the respiratory system
lung volume increases
increased strength of intercostal muscles
increased capillaries
what are the short term effects of the respiratory system
breathing rate increases
what is the order of which air passes through to the lungs
nasal cavity
pharynx
epiglottis
larynx
trachea
bronchi
bronchioles
alveoli
what is the function of nasal cavity
warms the air when passing through
what is the function of epiglottis
stop food entering the airway
what is the function of pharynx
acts of a passageway allowing air through the windpipe
what is the function of trachea
allows inspired and expired air in and out the lungs
what is the function of larynx
voice box
air pass through throat to trachea to lungs
what is the function of alveoli
air sack
expand and shrink
what is the function of bronchioles
deliver air to alveoli
what is gaseous exchange
exchange of oxygen and carbon dioxide in the alveoli
what are the 5 muscles when breathing
scalenes
sternocleidomastoid
pectoralis minor
external abdominal oblique
rectus abdominis
what do the intercostal muscles do when inspiration
contract pulling chest walls up
what does the diaphragm do when inspiration
contract and flattens
what happens to the size of chest when inspiring
increase
what happens to the lungs and pressure when inspiring
lungs increase in size
pressure decreases
what happens to the intercostal muscles when expiring
relax
what happens to the diaphragm during expiring
relax and bulges up
what happens to the size of chest when expirating
decreases
what happens to the lungs and pressure during expiration
pressure increases
lungs decrease in size