Eyeball Dissection
What was the hard, dense structure that separates the anterior and posterior eye?
lens
What muscle opens and closes the pupil?
iris
Where is vision processed?
occipital lobe
What is the fancy name for pinkeye?
conjunctivitis
In which part of the inner ear does "hearing" occur?
Cochlea
What jelly fills the anterior portion of the eye?
aqueous humor
What muscle adjusts the size of the lens?
ciliary body
If you can see something at 20 feet that the average person would need to be 15 feet away to see, what is your visual acuity?
20/15
Deafness...
full name for the nerve coming off of the inner ear structures.
vestibulocochlear nerve
Through what anatomical plane did you slice your sheep's eyeball?
coronal
What muscle controls the opening and closing of the eye?
Orbicularis oculi
How are images projected onto our retina oriented?
upside-down
What is the disorder where the body is unable to sweat?
anhidrosis
How many semicircular canals are there in an inner ear?
3
What is the connective tissue on the exterior of the eye (lining eyeball, underneath eyelid, etc) called?
Conjunctiva
On what muscle do you find gustatory receptors?
tongue!
What structure senses smells in the nasal cavity?
olfactory epithelium
What is the term for near-sightedness?
myopia
What structure do sound waves travel through to enter the vestibule?
Oval window
What was the iridescent membrane in the sheep eye used for, and what was it called?
night vision & tapetum lucidum
Mechanoreceptor that is sensitive to light touch.
Meissner's corpuscles
The optic nerves criss-cross in the brain and each eye is controlled by the opposite-position lobe. What is the area where the optic nerves cross called?
Optic chiasm
Caused by pressure damage to the optic nerve.
Glaucoma
Which test determines the soundness of the dorsal white column of the spinal cord, relating to the ability of our inner ears to maintain posture? (we did it in exercise 17)
Romberg Test