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Introduction to Special Senses quiz #2

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  • Which is the correct order of the flow of sound waves to the hair cells? A) Pinna, tympanic membrane, cochlea, auditory ossicles B) Pinna, auditory ossicles, tympanic membrane, cochlea C) Pinna, tympanic membrane, auditory ossicles, cochlea D) Cochlea, tympanic membrane, pinna, auditory ossicles
    C) Pinna, tympanic membrane, auditory ossicles, cochlea
  • Why is control over leg muscles less precise than control over the muscles of the eye?
    Control over leg muscles is less precise because they have fewer motor units compared to the muscles of the eye.
  • When you are looking at an object up close (near vision), what happens to the lens?
    The lens becomes more rounded to focus light on the retina during near vision.
  • Where do optic nerve impulses first go in the brain?
    They first go to the thalamus
  • The nurse is conducting the Rinne test. What is included in this test?
    The Rinne test involves comparing air conduction to bone conduction using a tuning fork.
  • A nurse is administering ear drops to a 7-year-old girl. What should the nurse do?
    The nurse should pull the ear lobe down and back to straighten the ear canal.
  • Which region in the brain contains the visual cortex?
    Occipital lobe
  • A patient has dark skin. Which area is best for the nurse to check for cyanosis?
    The nurse should check the mucous membranes or nail beds for cyanosis.
  • What is a possible cause of conduction deafness?
    Conduction deafness can be caused by blockage or damage to the outer or middle ear structures.
  • Why do you have a blind spot in each eye?
    The blind spot exists because there are no photoreceptors where the optic nerve exits the retina.
  • Which structure controls the size of the pupil?
    The iris controls the size of the pupil.
  • In which structure is endolymph found?
    Cochlea
  • Which cranial nerve is not involved with the eye?
    D) Vestibulocochlear nerve
  • Where are the openings of the auditory tubes located?
    The openings of the auditory tubes are located in the nasopharynx.
  • What is the function of a Snellen chart?
    A Snellen chart is used to assess visual acuity.
  • What part of the eye is primarily focused on in central vision?
    C) It is primarily focused on by the fovea centralis
  • Muscles of which structure regulate the amount of light entering the eye?
    Muscles of the iris regulate the amount of light entering the eye.
  • What are the five special senses, and what type of stimulus does each sense detect?
    The five special senses are vision (detects electromagnetic radiation/light), smell (detects chemical properties in the air), taste (detects chemical properties in food), hearing (detects pressure waves or vibrations in the air), and equilibrium (detects movement and gravity).