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Lab Worksheet

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    158948
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    BI 102 Lab Worksheet: Senses Name _________________________________ Section _______

    Visual acuity:

    Left eye:20/___            Right eye:20/__

    Astigmatism:

    Left eye: ______________ (yes/no)            Right eye: ______________ (yes/no)

    Accommodation:table 30.2

    Left eye: ______ cm            “Age” of your L eye: _____

    Right eye: ______ cm           “Age” of your R eye: _____

    Blind spot:

    Left eye: ______ cm           Right eye: ______ cm

    Color Blindness Score: _______ (count # of plates you cannot read)

    Superimposition

    Describe what you saw during the superimposition exercise.

     

     

    Afterimages:

    Describe what you saw during the afterimages exercise using the strip of green paper.

     

    Describe what you saw during the afterimages exercise using the strip of orange paper.

     

    2-point discrimination (touch):

    Forearm: ___ mm           Back of neck: ___ mm           Index finger: ___ mm            Back of hand: ____ mm

    Which area contains the greatest density of touch receptors? Why do you think this is the case?

     

    Sense of Heat and Cold:

    Describe the sensations experienced in your left and right hands during this exercise.

     

    The Ear, Hearing, and Equilibrium:

    Number the following structures below in the order in which sound waves/vibrational pass through them.

    _____ Auditory canal

    _____ Cochlea

    _____ Cochlear nerve

    _____ Incus

    _____ Malleus

    _____ Oval window

    _____ Pinna

    _____ Stapes

    _____ Tympanic membrane

    Perception of Sound:

    What is the relationship between the frequency of a sound and its perceived pitch?

     

    Locating Sound:

    Was it more difficult for you to accurately locate sounds with lower or higher pitches?

     

    Illustration of Post-rotatory Nystagmus:

    Describe the direction of eye movements during the slow and fast phases of nystagmus below:

    After rotating clockwise: Direction of slow phase: __________            Direction of fast phase: __________

    After rotating counter-clockwise: Direction of slow phase: _______            Direction of fast phase: _______

    Sense of Smell:

    Vial # What you think is the scent The actual scent
         
         
         
         
         
         
         
         
         
         
         

    Sense of Taste:

    Type of Paper

    Describe taste (no taste, sweet, sour, salty, or bitter)

    Control No taste
    Phenylthiocarbamide (PTC)  
    Thiourea  
    Sodium benzoate  
       

    Lab Worksheet is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by LibreTexts.

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