Biol 223A Exam Questions And
Correct Detailed Answers With
Rationale Latest Update This Year
Which of the following about
discrimination is false?
Low frequency sounds are detected
far from the oval window
None of the above are false, all are
true
1
,Louder sounds stimulate more hair
cells
High frequency sounds are detected
close to the oval window
Softer sounds stimulate less hair cells
- correct answer=✔✔None of the above
are false, all are true
Area A is an area of the skin that is 100
cm in diameter and has tactile
receptors with circular receptive fields
with a diameter of 7.0 cm. Area B is a
different area of skin, 100 cm
diameter, that has tactile receptors
with circular receptive fields 2.5 cm in
diameter. Which area of skin can
provide more precise tactile sensory
information?
2
,Area A will provide more precise
sensory information than Area B.
Area B will provide more precise
sensory information than Area A.
Area A and Area B will provide the
same level of sensory information
because the precision of tactile
sensations is not related to size of
receptive fields
Area A and Area B will provide the
same level of sensory information
because the two areas are the same
size
3
, None of the above are correct. - correct
answer=✔✔Area B will provide more
precise sensory information than Area
A
When a sound wave carries vibration
to the basilar membrane which causes
cilia of the inner ear hair cells to be
pressed against the tectorial
membrane:
There is a change in the
transmembrane potential of the hair
cells
Nausea occurs
The hair cells are permanently
damaged
4
Correct Detailed Answers With
Rationale Latest Update This Year
Which of the following about
discrimination is false?
Low frequency sounds are detected
far from the oval window
None of the above are false, all are
true
1
,Louder sounds stimulate more hair
cells
High frequency sounds are detected
close to the oval window
Softer sounds stimulate less hair cells
- correct answer=✔✔None of the above
are false, all are true
Area A is an area of the skin that is 100
cm in diameter and has tactile
receptors with circular receptive fields
with a diameter of 7.0 cm. Area B is a
different area of skin, 100 cm
diameter, that has tactile receptors
with circular receptive fields 2.5 cm in
diameter. Which area of skin can
provide more precise tactile sensory
information?
2
,Area A will provide more precise
sensory information than Area B.
Area B will provide more precise
sensory information than Area A.
Area A and Area B will provide the
same level of sensory information
because the precision of tactile
sensations is not related to size of
receptive fields
Area A and Area B will provide the
same level of sensory information
because the two areas are the same
size
3
, None of the above are correct. - correct
answer=✔✔Area B will provide more
precise sensory information than Area
A
When a sound wave carries vibration
to the basilar membrane which causes
cilia of the inner ear hair cells to be
pressed against the tectorial
membrane:
There is a change in the
transmembrane potential of the hair
cells
Nausea occurs
The hair cells are permanently
damaged
4
