respiratory system Flashcards
what is external respiratiom
exchange of gases between the air and blood in pulmonary capillaries
what is internal respiration
exchange of gases between systemic capillaries and tissue cells
what happens to air when it goes through our tract
-air is filtered by the cilia,nose hairs and mucus
-warmed
- moistened by the wet surface of passage
what separates the nasal cavity
the septum
what are tear ducts known as
lacrimal glands
what is the eustachian tube
a tube that leads from the nasal cavity into the middle ear
what causes sinus headaches
opening from nasal cavity into skull gets inflammation
what do tear ducts do
drain the tear and clean your eyes
what are the 3 parts of the pharynx
nasopharynx, oropharynx and laryngopharynx
what is the glottis
opening of trachea that is covered by epiglottis
what is the larynx
the voice box or the first part of the tracheas that contains the vocal cords
what are the vocal cords
elastic ligaments
how do vocal cords work and make sound
the cords stretch back and forth and vibrate when air is expelled
what is the trachea
the windpipe
what holds open the trachea
c rings (cartilaginous rings)
