Lab 8: Special Senses

superior rectus muscle

superior rectus muscle

top of the eye muscle

inferior rectus muscle

bottom of eye muscle

lateral rectus muscle

lateral side eye muscle

medial rectus muscle

medial side eye muscle

superior oblique muscle

Muscle that is more medial and connects to the trochlea of the eye

trochlea of eye

ligamentous strap

- blue

levator palpebrae superioris

connects to eyelid

inferior oblique muscle

goes around the bottom of the eye

lacrimal gland

Gland that sits on the top off the eye laterally

lacrimal sac

an enlargement of the upper portion of the lacrimal duct

nasolacrimal duct

Name this passageway

vitreous chamber

The big eye "hole"

- the "space"

vitreous body

The clear ball inside the eye model

anterior cavity

From the cornea to the lens

- Orange lines

* Name this REGION*

aqueous humor

FLUID in the eye, found between the cornea and the lens

anterior chamber

from the cornea to the iris

-Purple line

Name this space

posterior chamber

from the iris to the lens

-green line

Name this space

lens

clear "football" in the eye

optic nerve II

nerve that goes to the eye

fibrous tunic

the cornea and sclera together

Name this layer

uvea (vascular tunic)

iris, ciliary body, choroid

- lies beneath the sclera

Name this layer

retina

inner most layer of the eye

- orange with blood vessels

Name this layer

sclera

the white of the eye

cornea

clear part in the front of the eye

iris

colored part of the eye

pupillary constrictor muscles

More on the interior of the iris

pupillary dilator muscles

Muscles on the outside of the iris

pupil

opening in the eye

Name this space

ciliary body

- Red dots that are attached to the iris

ciliary zonule

Ligaments that connect the lens and the iris

choroid

second layer around the eye -Red on model

connects to the iris

yellow arrows

macula lutea

blind spot in the eye

- purple on some models

fovea

indentation within the macula lutea

yellow arrow

Name this depression

optic disc

where the optic nerve comes into the eye

ora serrata

"flower in the eye"

pinna

Outermost portion of the ear.

external acoustic meatus

Name this passageway

tympanic membrane

blue arrow

-removable

"ear drum"

auditory ossicles

1, 2 & 3

malleus

1

attached to the tympanic membrane

incus

second ossicle of the middle ear

stapes

"stirrup"; inner of the 3 ossicles of the middle ear

auditory tube

Name this passageway

bony labyrinth

vestibulocochlear nerve VIII

vestibule

the area between cochlea & semicircular canals.

anterior semicircular canal

posterior semicircular canal

lateral semicircular canal

ampulla

enlarged regions at the bottom of the semicircular canals

cochlea

"snail shell"

oval window

Opening under the stapes

Name this opening

round window

Cochlear branch of vestibulocochlear nerve VIII

vestibular branch of vestibulocochlear nerve VIII

vestibular duct

Name this space

cochlear duct

Name this space

blue

organ of Corti

Name this structure

hair cells

tympanic duct

Name this space (blue)

vestibular membrane

basilar membrane

tectorial membrane

spiral ganglion