CHAPTER 34 QUIZ
cerumen impaction.
A buildup of earwax within the external auditory canal is ____?
Adaptation.
A chemical can stimulate smell receptors for only a limited amount of time because of a process called sensory ________?
otosclerosis .
A common cause of conductive hearing loss is the immobilization of the stapes within the inner ear, called ____?
Tinnitus.
An abnormal ringing in the ears is called ________?
conjunctiva.
As a person ages, the ________ of the eye becomes thinner and may be drier because of a decrease in tear production?
Pupil.
As the iris of the eye contracts and relaxes, an opening at its center, called the ________, grows larger or smaller, regulating the amount of light that enters the eye?
8 to 12 months of age.
At what age should infants respond to the instruction "No" and quickly turn to the sound of their name?
sensorineural.
Hearing loss that occurs when there is damage to the nerve that leads from the ear to the brain is called ______?
Cornea.
Letter H in the figure indicates the ________, a transparent area on the front of the eye that lets light into the eye?
"Mrs. Whitley, please have someone drive you to the hospital immediately, or call 911."
Mrs. Whitley, a 61-year-old patient, calls the office this morning. She says she is afraid to drive to the office, because when she woke up this morning, her vision was "funny, like everything is wavering in front of my eyes." She is also seeing flashes of light and floaters. Which of the following statements is your best response to Mrs. Whitley?
Gustatory.
Receptors that are found on the taste buds are known as taste or ________ receptors?
chemoreceptors.
Smell receptors and taste cells are both a special type of receptor called a(n) _____?
olfactory.
Smell receptors are called ________ receptors?
Iris.
The ____ controls the amount of light entering the eye?
cornea.
The ____ is a transparent area on the front of the eye that allows light to enter the eye?
ciliary body .
The ____ is a wedge-shaped thickening in the middle layer of the eyeball that controls the shape of the lens?
Vestibule.
The ____ is the area between the semicircular canals and the cochlea that helps detect balance of the body?
choroid .
The ____ is the middle layer of the eye, which contains most of the eye's blood vessels?
eustachian tube.
The ____ maintains equal pressure on both sides of the eardrum?
Lacrimal.
The _______ glands are located on the lateral edge of each eyeball and produce tears?
Retina.
The ________ in the eye converts light into nerve impulses, which are then transmitted along the optic nerve to the brain?
tympanic membrane.
The ________, a fibrous partition that separates the external ear from the middle ear, is shown at letter F in the figure?
malleus.
The ________, or hammer, is one of the smallest bones in the body and is indicated by letter D in the figure?
external auditory canal.
The ________, shown at letter E, is the part of the external ear that carries sound waves to the tympanic membrane?
Iris.
The ________, shown at letter G in the figure, controls the size of the pupil?
cochlea.
The ________, shown at letter H in the figure, contains hearing receptors, including the organ of Corte?
gustatory cortex.
The area of the brain that is responsible for interpreting taste sensations is called the _________?
Lens.
The clear, circular disk located just posterior to the iris that helps the eye focus is the ________, which is shown at letter F in the figure?
Nasolacrimal.
The ducts that are located on the medial aspect of each eyeball and drain tears into the nose are the _______ ducts?
Orbits.
The eye sockets, or ________, form a protective shell around the eyes?
Brain.
The gustatory cortex located in the ______ interprets taste sensations?
Retina.
The innermost layer of the eye, shown at letter C in the figure, is the? ________
vitreous humor.
The posterior chamber of the eyeball is behind the lens and is filled with a very thick, jelly-like fluid called ________ that keeps the retina flat and helps to maintain the shape of the eye?
Auditory tubes.
The three tiny bones that vibrate in response to sound are called ______?
extrinsic eye muscles.
There are six ____ that function together to move the eyeball?
Never mix cleaning solutions.
When educating a patient on maintaining eye safety in the home, patients should be reminded to?
Semicircular.
When the head moves, fluids in the ________ canals move and activate the equilibrium receptors?
endolymph.
When the head moves, fluids known as perilymph and ________ in the semicircular canals and vestibule move, activating equilibrium receptors and hearing receptors?
Cones.
Which of the following allow vision in bright light, are sensitive to color, and provide detailed images?
Lens.
Which of the following allows the eye to focus on images?
Conjunctivas.
Which of the following are mucous membranes that line the inner surfaces of the eyelids?
A loss of the ability to hear sounds at normal levels.
Which of the following defines hearing loss?
Retina.
Which of the following is the inner layer of the eye, which contains rods and cones?
Nasolacrimal ducts.
Which of the following structures is on the medial aspect of each eye and drains tears into the nose?
Aqueous humor .
Which of these is found in the anterior chamber of the eye?
Presbycusis.
Which of these is hearing loss due to the aging process?
Vitreous humor .
Which of these is in the posterior chamber of the eye?
Lacrimal glands .
Which of these produce tears and secrete enzymes to destroy bacteria and viruses in the eye?
Rods.
Which parts of the eye are highly sensitive to light and function best in dim light but do not provide a sharp image and detect only black, white, and shades of gray?
Pain.
when spicy food are eaten, which receptors on the tongue are activated?