AH103 Chp 11.4-11.6 The EAR: Questions With
Applicable Solutions
Save
Terms in this set (58)
external ear
what are the 3 major middle ear
sections of the ear? inner ear
1)auricle/pinna is a wing-shaped
structure that directs sound
waves into the ear canal through
the external 2) auditory meatus
3) The external auditory canal
ends at the very delicate 4)
what are the parts of the
tympanic membrane, otherwise
external ear?
known as the eardrum.
The meatus and canal are lined
with skin that contains many
modified sweat glands called 5)
ceruminous glands, which
secrete cerumen.
tympanic membrane (eardrum)
what are the 4 components tympanic cavity
of the middle ear? ossicles (3) / malleus / incus / stapes
eustachian (auditory) tube
, eardrum!
rests at the inner end of the
external auditory canal.
It vibrates freely as sound waves
what is the tympanic hit it.
membrane?
It has a good nerve supply and is
very sensitive to pain.
When examined through the
otoscope, it is transparent and
reflects light
its immediately behind the tympanic membrane.
It is filled with air that enters through the eustachian
what is tympanic cavity? tube, and the cavity is continuous with the mastoid air
cells in the bone behind it.
The cavity contains small bones called ossicles.
the malleus, incus, and stapes!!
what are the ossicles? They work to amplify sounds by vibrating one to the
other, and are attached to the tympanic cavity wall by
tiny ligaments.
1) The malleus is attached to the tympanic membrane
and vibrates with the membrane when sound waves hit
it.
how do the ossicles work
2) The malleus is also attached to the incus, which
togeter?
vibrates, too, and passes the vibrations onto the stapes.
3) The stapes is attached to the oval window, an
opening that transmits the vibrations to the inner ear.
Applicable Solutions
Save
Terms in this set (58)
external ear
what are the 3 major middle ear
sections of the ear? inner ear
1)auricle/pinna is a wing-shaped
structure that directs sound
waves into the ear canal through
the external 2) auditory meatus
3) The external auditory canal
ends at the very delicate 4)
what are the parts of the
tympanic membrane, otherwise
external ear?
known as the eardrum.
The meatus and canal are lined
with skin that contains many
modified sweat glands called 5)
ceruminous glands, which
secrete cerumen.
tympanic membrane (eardrum)
what are the 4 components tympanic cavity
of the middle ear? ossicles (3) / malleus / incus / stapes
eustachian (auditory) tube
, eardrum!
rests at the inner end of the
external auditory canal.
It vibrates freely as sound waves
what is the tympanic hit it.
membrane?
It has a good nerve supply and is
very sensitive to pain.
When examined through the
otoscope, it is transparent and
reflects light
its immediately behind the tympanic membrane.
It is filled with air that enters through the eustachian
what is tympanic cavity? tube, and the cavity is continuous with the mastoid air
cells in the bone behind it.
The cavity contains small bones called ossicles.
the malleus, incus, and stapes!!
what are the ossicles? They work to amplify sounds by vibrating one to the
other, and are attached to the tympanic cavity wall by
tiny ligaments.
1) The malleus is attached to the tympanic membrane
and vibrates with the membrane when sound waves hit
it.
how do the ossicles work
2) The malleus is also attached to the incus, which
togeter?
vibrates, too, and passes the vibrations onto the stapes.
3) The stapes is attached to the oval window, an
opening that transmits the vibrations to the inner ear.
