QUESTION 17 Why are you able to hear the tuning fork when it is placed on your t
ID: 259170 • Letter: Q
Question
QUESTION 17
Why are you able to hear the tuning fork when it is placed on your temporal bone?
hair cells respond to vibrations and the tuning fork vibrates the temporal bone and those vibrations are transferred to the cochlea.
the sound of the temporal bone vibrating projects through the external acustic meatus and then vibrates the tympanic membrane.
the vibrations of the tuning fork directly vibrates the tympanic membrane.
the vibrations of the tuning fork directly stimulate the auditory nerve.
3 points
QUESTION 18
The receptor for temperature is categorized as what kind of receptor?
photoreceptor
mechanoreceptor.
thermoreceptor.
nociceptor.
3 points
QUESTION 19
Why does room temperature water feel colder after placing your hands in warm water?
the water actually is becoming colder.
the thermoreceptors have adapted to the warm water, so when placing your hand into the room temperature water, it feels much colder since there is a greater difference between the two water baths.
the cold receptors are much stronger after being placed in cold water.
3 points
QUESTION 20
The receptors for touch are categorized as what type of receptor?
photoreceptor.
mechanoreceptor.
chemoreceptor.
nociceptor.
3 points
QUESTION 21
The reason one can feel two relatively close points on their finger tips or lips compared to the arm or back is because
the receptive fields on the arm are smaller than in the finger tips.
the receptive fields in the arm are larger than those in the fingertips.
3 points
QUESTION 22
The reason one no longer feels the stack of pennies (or their clothes, ring, etc.) is that the receptors have accommodated.
True
False
A.hair cells respond to vibrations and the tuning fork vibrates the temporal bone and those vibrations are transferred to the cochlea.
B.the sound of the temporal bone vibrating projects through the external acustic meatus and then vibrates the tympanic membrane.
C.the vibrations of the tuning fork directly vibrates the tympanic membrane.
D.the vibrations of the tuning fork directly stimulate the auditory nerve.
Explanation / Answer
Ans 17: B
Sound travels form the outer ear through the auditory canal and then to the tympanic membrane before reaching the three ear bones including cochlea.
Ans 18: C
thermos = warm (in Latin).
Ans 19: B
The thermo receptors take some time to adjust to the new temperature.
Ans 20: B
Receptors for touch and pressure are referred to as mechanoreceptors.
Ans 21: B
Finger tips have larger number of mechanoreceptors.
Ans 22: True
The region sort of gets "desensitized" of the known stimulus.
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