respiratory system Flashcards
6 main organs of the respiratory system?
nose
pharynx
larynx
trachea
lungs
diaphram
what are sinuses?
air filled cavities in the skull
what filters air during the first stages of inhaling
coarse hairs within the nostril and later mucus and cilia in the nasal cavity
what is the use of sinuses? (3)
reduce skull weight
produce cleansing fluids that drain into the nasal cavities
allow voice resonation www
what is the pharynx?
the passageway that joins the nasal and oral cavities in the larynx
3 sections of the pharynx? and where to where do they go?
nasopharynx- nasal cavity to soft palate
oropharynx - soft palate to where the mouth opens
laryngopharynx - area that opens to the larynx
laryngopharynx aka?
hypopharynx
2 important structures in the pharynx
uvula - extension of the soft palate, projects into the oropharynx
tonsils - lymphatic tissue that helps protect against inhaled/ingestec bacteria
what is the larynx and what is it made of?
the region of the throat between pharynx and the trachea
cartilage
what is the glottis and what blockes it during swallowing?
opening in the larynx to the trachea
blocked by the epiglottis
larynx is aka?
the voice box
what makes us able to change volume and pitch in our voice?
the varied tensions in the chords in the larynx
where is the trachea and what’s it made of?
the tube that connects larynx to the bronchial tree (upper lungs). it is infant if the oesophagus
made if cartilage
thrashes has what shaped rings?
C shaped rings
what does the cilia in the trachea do?
sweep debris upwards toward the pharynx where then it can be either swallowed it expelled
