CSD 3103
ANATOMY OF SPEECH
AND HEARING MECHANISMS
HOMEWORK FOR THE INNER EAR
FALL SEMESTER 2008
DUE: September 22, 2008
Multiple Choice
1. The macula is the end organ located
within the
a)
semicircular canals
b)
cochlea
c)
utricle
d)
brain
2. ___________ does not make up a wall of the cochlear duct
a)
bony shelf
b)
tectorial membrane
c)
basilar membrane
d)
Reissner’s membrane
3. Endolymph is found in the
a)
stria vascularis
b)
scala vestibuli
c)
scala media
d)
scala tympani
4. The fluid surrounding the membranous
labyrinth is called
a)
cortilymph
b)
perilymph
c)
endolymph
d)
lymph
5. The central core around which the
cochlea winds is the
a)
modiolus
b)
Reissner’s membrane
c)
helicotrema
d)
basilar membrane
6. The tips of the outer hair cells are
embedded in
a)
Reissner’s membrane
b)
the bony shelf
c)
the tectorial membrane
d)
the basilar membrane
7. The small opening allowing passage of
perilymph from scala
vestibuli to
scala tympani is called
a)
modiolus
b)
stria vascularis
c)
spiral ligament
d)
helicotrema
8. The number
of turns of the cochlea is
a)
2
b)
2.5
c)
3
d)
3.5
9. The structure just medial to the oval
window is the
a)
cochlea
b)
semicircular canals
c)
vestibule
d)
helix
10. The crista is the end organ of the
a)
utricle
b)
saccule
c)
cochlea
d)
semicircular canals
11. The fluid contained in the membranous
labyrinth is
a)
perilymph
b)
cortilymph
c)
blood
d)
endolymph
12. The end organ of hearing is the
a)
crista
b)
macula
c)
helicotrema
d)
organ of Corti
13. The portion of the inner ear
responsible for linear acceleration is the
a)
semicircular canals
b)
utricle and saccule
c)
crista
d)
organ of Corti
Matching
|
_____1. |
Fluid
contained in the vestibular and cochlear portions of the bony labyrinth that
surrounds the membranous labyrinth |
a.
Ampulla |
|
_____2. |
A
vascular strip along the outer wall of the scala media that supplies oxygen
to the cochlea |
b.
Basilar membrane |
|
_____3. |
The
cavity of the inner ear that contains the organs of equilibrium |
c.
Cochlea |
|
_____4. |
Three
loops within the vestibule that monitor angular acceleration |
d.
Endolymph |
|
_____5. |
The
smaller of two sacs in the vestibule that is responsible for sensing linear
acceleration |
e.
Helicotrema |
|
_____6. |
The
cochlear duct containing the organ of Corti |
f.
Labyrinth |
|
_____7. |
The
widening ends of the semicircular canals that contain the cristae |
g.
Perilymph |
|
_____8. |
Fluid
contained in the membranous labyrinth |
h.
Reissner’s membrane |
|
_____9. |
The
membrane separating the scala media from the scala tympani and supporting the
organ of Corti |
i.
Saccule |
|
_____10. |
The
interconnecting canals in the temporal bone that contain perilymph in which
is found the membranous labyrinth |
j.
Scala media |
|
_____11. |
The
duct in the inner ear above the scala media that contains perilymph |
k.
Scala tympani |
|
_____12. |
The
larger of two sacs in the vestibule that is responsible for sensing linear
acceleration |
l.
Scala vestibuli |
|
_____13. |
The
membrane separating the scala vestibuli from the scala media |
m.
Semicircular canals |
|
_____14. |
The
membrane in the scala media above the organ of Cortiinto which the tips of
the hair cells are imbedded |
n.
Stria vascularis |
|
_____15. |
The
duct below the scala media that is filled with perilymph |
o.
Tectorial membrane |
|
_____16. |
An
opening at the apical end of the cochlea connecting the scala vestibuli with
the scala tympani |
p.
Utricle |
|
_____17. |
A
cavity in the temporal bone containing the end organ of hearing |
q.
Vestibule |
Labeling:
