respiratory system Flashcards
name the 5 main structures of the respiratory system
nose/mouth
trachea
bronchi
bronchioles
alveoli
what happens to the diaphragm when we inhale
contracts
what happens to the intercoastal muscles when we inhale
contract and pull the rib cage up and out
what is the role of the mucus
trap dust
warm/moisten air
what is the role of cilia
filter air
what is the role of blood
naturally warms the blood as it travels through the body
what is the purpose of the epiglottis
block food and drink from going down the trachea
what is the larynx
passageway where the vocal chords are
links the nasal cavity to the rest of the respiratory system
what is the trachea
passageway to transport air
what are some structural characteristics of the trachea
-flexible yet strong
-rings of hyaline cartilage to prevent it from collapsing
what is the role of the bronchi
2 main tubes in and out of the lungs which air passes through
what are some structural characteristics of the bronchi
-rings of hyaline cartilage
-contains mucus to trap particles