Human Anatomy
Special Senses – Lab Activities
Name: ______________________________
Mr. DePhillips
40 points
You MUST follow the directions on the colored card at each station. The information below only
represents what questions you need to answer and what test results you need to report!
“Vision”
Activity ONE – Muscles of the Eye
What accessory eye structures can you identify?
Look Left…
Right Eye ___________________(muscle)
Look superiorly
Left Eye _________________(muscle)
Right Eye ______________(muscle)
Left Eye __________________(muscle)
(Eye model) Label the numbered eye parts…
1
6
2
7
3
8
4
9
5
10
Activity TWO – Visual Acuity – Snellen Eye Chart
20 feet is marked by the strip of tape on the floor.
Visual Acuity, Right Eye _________/___________
Visual Acuity, Left Eye _________/___________
Only if you can take off your glasses/contacts,
do it again…
_________/___________
_________/___________
Activity THREE – Color Blindness – Ishihara Color Plates
We don’t use a color plate book since they cost HUNDREDS of dollars. Instead, use the ones projected on
the screen in class. And take a look at the poster hanging in the room.
Do YOU have a form of color blindness? ________
If so, what type?
Activity FOUR – Testing for Astigmatism
Complete the test and report YOUR results:
Left Eye?
Right Eye?
Briefly describe this test:
Activity FIVE – Determining Near Point Accommodation
Use the info at this station to define:
Astigmatism
Presbyopia
Neat point for right eye: _____________________
Near point for left eye: ____________________
Briefly describe this test:
Activity SIX – Testing your Photoreceptors
Choose a paper with a colored dot on it. DO NOT write your name on the paper.
Sticker color __________
After image Prediction ___________
Actual after image _________
Sticker color __________
After image Prediction ___________
Actual after image _________
Sticker color __________
After image Prediction ___________
Actual after image _________
**Attach your “blind spot map” to this lab.**
“Hearing”
Activity SEVEN – Weber Test and Rinne Test
Weber Test – Conductive & Sensorineural Deafness
Is the tone equally loud in both ears…or is it louder in one ear?
Rinne Test – Bone and Air-Conduction Hearing
Right Ear __________________
Left Ear _________________
Do YOU hear better by bone or by air conduction?
(Ear model) Label the ear’s parts
1
6
2
7
3
8
4
9
5
10
“Taste”
Activity EIGHT – Stimulating Taste Buds
How long does it take? ____________
Why couldn’t you taste it immediately?
Activity NINE – Effects of Smell and Texture on Taste
Place only one check per food…at what point did they identify the food?
Food
Texture Only
Chewing – nostrils
pinched
Chewing – nostrils
open
Identification not
made
Was the sense of smell equally important in all cases?
Where did it seem important, and why?
“Equilibrium”
Activity TEN – Conduction Lab Tests on Equilibrium
Balance Test
Did YOU walk without wobble?
Dizziness?
Nystagmus?
Continues on next page…
Romberg Test
Eyes open - Swaying movements?
Eyes open - Side-to-side?
Eyes closed – front to back swaying?
Was the equilibrium apparatus working equally well?
Swaying greater when eyes were closed or open?
Conclusions?
Role of Vision in Maintaining Equilibrium
Left foot off floor observation
Right foot off floor observation
“General Information”
Activity ELEVEN - (need “Atlas of Human Anatomy”)
(p96-97) What is another name for an ocular bulb?
What is another name for the crystalline?
Describe what happens during “presbyopia” (right shaded box).
(p. 98-101) What’s the scientific name for the ear lobe?
Prolonged exposure to what sounds (specifically) can cause hearing problems?
(p. 102-103) What the name of that little thing that hangs down in the back of your throat?
How many taste buds does the average human have _____ papillae X ______ taste buds per papillae =
Activity TWELVE - (“At the Clinic” questions- need textbook…notes…)
Why do you often have to blow your nose after crying?
On “Take Your Daughter to Work Day,” 5 year old Katie wandered away from her father’s 25th floor office
into the hall. Fascinated by the buttons in the elevator, she entered, pushed 1, and the high-speed
elevator plummeted to the first floor. Later she told her (now recovered) father that she felt like she “kept
on going” when the elevator stopped. Explain her sensation.
Nine children attending the same day care center developed red, inflamed eyes and eyelids. What is the
most likely cause and name of this condition?
Mrs. Minniver is taking a medication that causes dry mouth, and she complains to her doctor that she’s
lost her sense of taste. How might this side-effect be explained?