LO2 Respiratory System Flashcards
diaphragm
assists with breathing
trachea
allows passage of inspired and expired air into and out of the lung
bronchioles
carries air into small sacs in your lungs called alveoli
heart
sends blood throughout our bodies carrying oxygen to every cell
bronchus
two large tubes that carry air from your windpipe to your lungs
pleural
a thin layer of tissue that lowers the lungs and lines the interior wall of the chest cavity
larynx (voice box)
protects the lower respiratory tract from aspiring food into the trachea while breathing
intercostal muscles
the muscles between the ribs that normally tighten and pull the rib cage up
epiglottis
allows air to pass into the larynx and lungs. it protects your ability to breathe by protecting your larynx
alveoli
air sacs where gas exchange takes place
what is inspiration and expiration?
inspiration is how we breathe in
expiration is how we breathe out