Chapter 10 Review
Mrs. Chirichella
Know the location and function of
the following eye structures:
sclera
This portion of the outer tunic is
referred to as the “white of the
eye”.
This structure is clear, refracts
light, and is convex in shape.
Lens
This area is where the retina and
the optic nerve join; contains no
rods or cones; “blind spot”
Optic disc
This area has the highest concentration
of cones; the focal point of light needs
to converge here for the sharpest
vision.
Fovea
centralis
An inner tunic layer; contains rods
& cones.
Retina
This structure regulates the
amount of light entering the eye.
Iris
Transparent, non-vascular structure;
most anterior of outer tunic.
cornea
Floaters cast a shadow on your retina as
they pass through this…
The vitreous humor
Night blindness is most commonly caused by
a. damage to the cornea
b. damage to the optic nerve
c. an improper diet
d. a toxic effect of vitamin A
Why?
Because of a LACK of vitamin A
Know the location and function of
the following ear structures:
canal
AuditoryAuditory
canal/tube
This tube connects the middle ear to
the throat. Aka-the Eustachian tube.
Improperly blowing your nose could
pass an infection to which part of
your ear?
The middle ear
Tympanic
membrane
This structure- begins the middle ear;
the malleus is attached to; vibrates from
sound waves.
Oval
window
Oval window
The stapes vibrates this membrane
attached to the cochlea. Causing
waves in the perilymph.
Auricle
auricle
The outer fleshy portion of the
ear.
malleus
Auditory ossicle that is attached to the
eardrum. Passes the vibration to the incus.
Semicircular
Semicircular canals
canals
An infection in this structure could
cause dizziness.
Put the following in order as light passes
through the eye.
vitreous humor
cornea
aqueous humor
lens
List the parts of the eye that light
passes as it enters the eye.
1. cornea
3. lens
2. aqueous humor
4. vitreous humor
What is the name of the natural pain
suppressor in the body?
a. epinephrine
b. adrenalin
c. endorphin
d. encephalin
The scala tympani and the scala vestibule are
part of the:
a. middle ear
b. vestibule
c. cochlea
d. anterior chamber of the eye
Cross section through the cochlea
When these are distorted (bent) against
the tectorial membrane, an action
potential is sent to the brain.
Put the following in order that scents must
travel to reach the brain:
limbic system
olfactory tract
cortex of temporal lobe
olfactory bulb
olfactory bulb- olfactory tract-limbic systemcortex of temporal lobe
This gland is responsible for tear
production?
a. lacrimal
b. salivary
c. cordoid coat
d. ciliary bodies
Which part of the brain deciphers taste?
a. temporal lobe
b. parietal lobe
c. frontal lobe
d. occipital lobe
Put the following events of hearing in order:
The malleus moves the incus
The tympanic membrane vibrates
The stapes pushes the oval window
The incus moves the stapes
Sound waves are channeled down the ear
canal
1. Sound waves are channeled down the ear
canal
2. The tympanic membrane vibrates
3. The malleus moves the incus
4. The incus moves the stapes
5. The stapes pushes the oval window
Which general category of sensory receptors
detects variations in temperature?
a. thermoreceptors
b. mechanoreceptors
c. photoreceptors
d. pain receptors
The otoliths are located in:
a. the middle ear
b. the semi-circular canals
c. the cochlea
d. the saccule in the
vestibule
The receptors in the utricle and saccule are
stimulated when:
a. endolymph flows over the spiral organ
b. the otoliths bend cilia in response to
gravity
c. the tympanic membrane vibrates
d. perilymph bends hair cells
Which of the five senses contains two types of
photoreceptors called rods and cones?
a. vision
b. hearing
c. smell
d. taste
Rods function in
a. color vision
b. dim light vision
c. bright light vision
The sets of color receptors/cones within
the retina are sensitive to lights that are
a. red, green, and blue
b. red, blue, and yellow
c. green, yellow, and purple
d. orange, green, and purple
Anosmia is a condition in which there is a
loss of
a. touch
b. smell
c. hearing
d. vision
Which senses use chemoreceptors:
a. Taste
&
b.Touch
c.Hearing
d.Equilibrium
e. Smell
The incorrect interpretation of pain as
having come from regions far from the
actual site of pain is known as
a. visceral pain
b. phantom pain
c. referred pain
d. somatic pain
Odors seem to fade away
because of…
Treatment for cataract usually involves
removal of the
a. cornea
b. sclera
c. lens
d. vitreous humor
Cataracts is caused by a clouding of the
lens.
The disorder called glaucoma is usually
caused by
a. clouding of the lens
b. clouding the lens capsule
c. excessive accumulation of vitreous
humor
d. excessive accumulation of aqueous
humor
Pain receptors
a. are generally stimulated by factors
that cause tissue damage
b. tend to adapt rapidly
c. are among the most specialized of
the receptors
d. are widely distributed in the nerve
tissue of the brain
Which of the following would cause a
form of conductive deafness?
a. torn tympanic membrane
b. tumor in the brain
c. damage to the auditory tube
d. use of antibiotics