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
