A & P 214 Lab Exam 3 Quiz 3

general

external layer

external layer

middle layer

middle layer

(general)

or ciliary zonule

inner layer

inner layer

inner layer

cranial nerve

general

general area

fluid

general area

fluid

Position your head to look straight at the image. Cover your left eye, and look at the plus in the middle of the green background with your right eye. Move closer to the screen as before. When you hit your blind spot, the circle will disappear, and the brain will fill the gap with the surrounding yellow color.

Hold your finger in front of the eye test circle on the screen. Focus your gaze primarily on the circle and you should see two images of your finger on either side of the circle. Switch your focus from the dot to your finger.

green

auricle

blue

7

8

b

eustachian tube

orange

inside of the cochlea

membrane, deep to stapes

membrane

cranial nerve

Test done by placing the stem of a vibrating tuning fork on the midline of the head and having the patient indicate in which ear the tone can be heard.

deafness that results from damage to the auditory nerve

An inability to hear resulting from damage to structures of the middle or inner ear.

hearing test using a tuning fork; checks for differences in bone conduction and air conduction

allows the vibration sound to be transmitted to the inner ear

conduction through air

2

1

4

3

white dots