Chpt 19 pt 2

False (forms continuous lining of both)

(T/F) Although the the two conjunctivas of the eye share the same name, they are not coninuous

true

(T/F) Olfaction receptors adapt quickly

true

(T/F) The ocular conjunctiva is not present over the cornea

true

(T/F) We observe variation in the threshold required to stimulate receptors

exposed surface

Accessory structures of the eye keep the _____________ moist, clean and lubricated

anterior

Accessory structures of the eye provide superficial covering over ____________ exposed surface

palpebrae

Another term for eyelids

eye

Be careful with medial and lateral movement of the ____ because it is relative

ocular conjunctiva

Conjunctiva found on the external, anterior surface of eye

palpebral conjunctiva

Conjunctiva found on the internal surface of eyelid

lacrimal caruncle (release gritty material that sticks eyelids together)

Eye boogers come from the

hairs

Eyebrows are a row of thick, short

7, 9

Gustatory sensory information is sent along what cranial nerves

orbital fat

In the eye, offers support, protection and vasculature

orbital fat

In the eye, this cushions lateral & posterior sides of eye

ciliary muscle

Intrinsic eye msucels are the same as the

lead

It is taste (sweet specifically) that caused young children to eat what kind of dangerous paint

tears

Lacrimal secretions are more commonly known as

bipolar cells

Name for olfactory neurons

80

Nearly ____% of eye receded into orbit of skull along with other structures

mucus

Oderants get trapped in _____ along cilia

superior

Of your two eyelids, which is more moveable

chemoreceptors

Olfaction receptors are classified as

immobile

Olfaction sensors that have long____ cilia

supporting cells

Olfactory _________ sustain & support R cells

pseudostratified

Olfactory epithelium is a ____________ epithelium

neurons

Olfactory sensory cells are actually

moistening, lubricating

Tears clean and protect the eye, while also ______ and __________

SA

The cilia of olfactory sensors provide

suspensory ligaments, lens (outer capsule)

The ciliary processes attach to __________ which attach to ______

goblet

The conjunctiva contains numerous __________ cells

stratified squamous

The conjunctiva is made of specialized ____________ epithelium

anteriorly

The cornea bulges

epithelium

The cornea has an outer layer of

hairs (cilia)

The dendritic ends of olfactory bipolar cells have olfactory

fat

The eye has a presence of orbital

sphere

The eye is a slightly irregular hollow

2.5

The eye is around _____ cm

dense avascular CT

The fibrous tunic is composed of

lens

The hollow interior of eye contains the

humors

The internal cavities of the eye are filled with _______ that help maintain shape

nasal cavity

The lacrimal apparatus produce, collects & drains excess lacrimal secretions from the eye into the

mucus, antibodies, lysozyme

The lacrimal secretions contain

tears go across the eye when you blink

The lascrimal gland is found laterally so that

retina

The neural tunic is essentially the

cornea

The sclera is continuous with the

basal cells

The stem cell population of olfactory cells

uvea

The vascular tunic is essentially the

3

The wall of the eye is composed of ____ tunics

superior, inferior

There is both a ________ and _____ palpebrae

extrinsic eye muscles

These are responsible for the movement of eyeball

extrinsic eye muscles

These are the most precise and rapid skeletal muscles in the body

goblet cells

These cells are involved in mucin secretion lubricates and moisten the eye

superior rectus, inferior rectus

These extrinsic eye muscles elevate/depress eye,

superior oblique, inferior oblique

These extrinsic eye muscles elevate/depress eye, and turn it laterally

Medial rectus, lateral rectus

These extrinsic eye muscles move the eye medially/laterally

superior rectus, inferior rectus

These extrinsic eye muscles or roll the eye superiorly/inferiorly

accessory structures

These prevent foreign objects from coming into contact with eye

eyelids

This accessory structure of the eye is a movable anterior protective covering over surface of eye

Eyebrows

This accessory structure of the eye keeps sweat out of eye

eyelashes

This accessory structure of the eye prevents foreign objects from coming into contact with anterior surface of eye

suspensory ligaments

This component of the ciliary body positions and shapes the lens

cornea

This component of the fibrous tunic is "beyond reach of immune system"

sclera

This component of the fibrous tunic is a sturdy attachment site for EEM's

cornea

This component of the fibrous tunic is avascular, relies on lacrimal secretions for nutrient delivery/waste removal

limbus

This component of the fibrous tunic is the corneal scleral junction

sclera

This component of the fibrous tunic is tough; protects & shapes eyeball

cornea

This component of the fibrous tunic is transparent

limbus

This component of the fibrous tunic provides continuity between 2 structures

choroid

This component of the vascular tunic absorbs light

iris

This component of the vascular tunic controls light entry into the eye

iris

This component of the vascular tunic functions as a diaphragm to control pupil size

ciliary body

This component of the vascular tunic has cilialry processes

ciliary body

This component of the vascular tunic has the cilialry muscle

choroid

This component of the vascular tunic highly vascular and supplies nutrients to eye tunics

ciliary muscle

This component of the vascular tunic is mainly 4 layers of SmM organized into a ring

iris

This component of the vascular tunic is shaped like a flattened doughnut

lacrimal apparatus

This consists of lacrimal gland and ducts

focusing

This eye structure helps us with

vascular tunic

This eye tunic contains the iris, ciliary body, and the choroid

retina

This eye tunic contains the pigmented layer and the neural layer

fibrous tunic

This eye tunic contains the sclera and the cornea

neural tunic

This eye tunic has a pigmented layer and a neural layer

vascular tunic

This eye tunic houses extensive array of blood vessels, lymphatics

vascular tunic

This eye tunic houses the intrinsic eye muscles

olfaction

This sense detects odor chemicals (odorants) in solution

visual images

Vision assists us in forming specific detailed ______ of objects in our environment

sour, bitter

We are more sensitive to what kinds of taste stimuli

fibrous, vascular, retina

What are the three tunics

mucus lining

What in your nasal cavity facilitates the dissolving of oderants?

vision

What is our dominant sense?

(neurons that) turnover

What is unique about bipolar cells?

nothing (not regenerative. If you lose it, its gone)

What is unique about the inner epithelium in the cornea

regeneration

What is unique about the outer epithelium in the cornea

filter

When you squint when a bunch of dust gets kicked up, you are using your eyelashes as a

no immune system

Why are corneal transplants not often rejected

unknown

Why are eye boogers produced?

olfactory epithelium

_______ serves as organ for smell

Combinations

__________ of taste modalities allows us to perceive wide variety of tastes

accessory structures

eyebrows, eyelids, conjunctiva, lacrimal apparatus and extrinsic eye muscles