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Review
Senses
Chapter 11 Unit 3
Review
• For additional protection, the outside of the
eye is covered with tough, white fibrous
tissue. It maintains the shape of the eyeball,
and have six muscles attached and are
anchored in the skull, this permits the eye to
roll up and down, in and out, and in
combinations of these directions
• Sclera
Review
• This is the colored part of the eye: brown,
green, blue, etc. It is a ring of muscle fibers
located behind the cornea and in front of the
lens. It contracts and expands, opening and
closing the pupil, in response to the brightness
of surrounding light?
• Iris
Review
• A mucous membrane that lines the inner
surfaces of the eyelids and covers the anterior
sclera surface of the eye?
• Conjunctiva
• This is a clear, dome-shaped surface that
covers the front of the eye. It is the first and
most powerful lens in the eye's optical
system?
• Cornea
Review
• Further protection for the eye which secrete tears
to moisten and cleanse the surface of the
membrane(when we cry we get a runny nose)
• Lacrimal glands
• This is the film of the eye. It converts light rays
into electrical signals and sends them to the brain
through the optic nerve and is composed of
nerve tissue, is where most the problems leading
to vision loss occur?
• Retina
Review
• This is a gradual cloudiness of the lens; the condition
causes a painless, gradual blurring and loss of visual
acuity(usually over 70 year of age)?
• Cataract
• This condition alters the light-sensing retina in the back of
the eye
• Age related macular degeneration
• This condition is caused by inflammation of the conjunctiva
• Conjunctivitis(pink eye)
• This condition is also known as nearsightedness , when the
eyeball is too long?
• Mypopia
Review
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OD stands for oculus dexter and indicates
Right eye
OS stands for oculus sinister and indicates
Left eye
OU stands for oculus Uterque and indicates
Both eyes
A normal recording for a patients visual acuity on a snellen chart?
20/20
What is an abnormal reading on the snellen chart and considered
legally blind
• 20/200
Review
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The three major areas of the ear?
The outer ear
The middle ear
The inner ear
What are the other two parts of the outer
ear?
• auditory canal
• tympanic membrane(eardrum)
Review
• These three small bones are called the middle
ear
• Malleus, incus, and staples
• The inner ear contains?
• Cochlea and three semicircular canals
• Semicircular canals are responsible for?
• Maintaining equilibrium(balance)
• This is the outer part of the ear that picks up the
first vibrations?
• Pinna(auricle)
Review
• The number cause of an auditory canal obstruction?
• Cerumen(earwax)
• This is a condition of reduced ability to perceive sound
at normal levels, this can be gradual or sudden and
occurs in the middle ear?
• Hearing loss
• Hearing loss occurs in which lobe of the brain?
• Temporal
• This is a disorder of the inner ear, usually affecting one
ear, characterized by severe vertigo(dizziness) and
tinnitus(ringing in the ears)?
• Meniere’s disease
Review
• A condition that occurs when involving movement(planes, boats,
cars), this is characterized by loss of equilibrium, perspiration,
headache, nausea, and vomiting?
• Motion Sickness
• Is an infection of the external auditory canal, causes pain and
hearing loss(also called swimmer’s ear)?
• Otitis externa
• Is an infection of the middle ear?
• Otitis Media
• This is a condition of ringing or buzzing sound(s) in the ears?
• Tinnitus
• Medical term for dizziness with some loss of balance?
• Vertigo
Review
• These usually benign growths, most often
multiple, and in both sides of the nose, may occur
in large enough numbers and size to obstruct the
airway, associated with allergies and chronic
sinusitis?
• Nasal polyps
• This is a medical term for presence of blood
originating from the nose?
• Epistaxis
• This is a medical term for a reaction to airborne
allergens?
• Rhinitis
Review
• This disease is a fungal infection of the
mucous membranes of the mouth and throat?
• Candidiasis