17_Special Senses
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17_Special Senses

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Questions and Answers

Which of the following is a structural classification of sensory receptors based on cell type?

  • Free nerve ending
  • Encapsulated ending
  • Receptor cell
  • All of the above (correct)

    • Which of the following is a functional classification of sensory receptors based on type of stimuli?

  • Chemoreceptor
  • Photoreceptor
  • Nociceptor
  • All of the above (correct)

    • Which of the following is a special sense localized in the head region?

  • Pain
  • Vision (correct)
  • Touch
  • Temperature

    • Which of the following papillae is NOT found on the tongue?

    <p>Foliate papillae</p> Signup and view all the answers

    Which of the following is a structural classification of sensory receptors based on location of stimuli?

    <p>All of the above</p> Signup and view all the answers

    Which of the following is a general sense localized in the skin and internal organs?

    <p>Touch</p> Signup and view all the answers

    Which structure in the ear contains the otolithic membrane and otoliths?

    <p>Vestibule</p> Signup and view all the answers

    What generates an electrical signal in the hair cells of the vestibule?

    <p>Fluid movement</p> Signup and view all the answers

    Which nerve transmits the electrical signals from the hair cells of the vestibule and semicircular canals?

    <p>Vestibulocochlear nerve</p> Signup and view all the answers

    What is the function of the otolithic membrane and otoliths?

    <p>Detect rotational movement</p> Signup and view all the answers

    Which part of the membranous labyrinth contains the crista ampullaris?

    <p>Semicircular ducts</p> Signup and view all the answers

    Where is equilibrium processed in the brain?

    <p>Cerebral nuclei</p> Signup and view all the answers

    Which layer of the eye contains the photoreceptors involved in receiving and processing light?

    <p>Neural tunic</p> Signup and view all the answers

    What is the function of the suspensory ligaments in the eye?

    <p>To attach the lens to the ciliary body</p> Signup and view all the answers

    Which cavity of the eye is filled with vitreous humor?

    <p>Posterior cavity</p> Signup and view all the answers

    What is the function of the fovea centralis in the retina?

    <p>To detect light and process visual information</p> Signup and view all the answers

    Where does the optic nerve leave the eye?

    <p>Optic disc</p> Signup and view all the answers

    What is the function of hair cells in the ear?

    <p>To detect vibrations or sound waves</p> Signup and view all the answers

    Which of the following is responsible for transforming mechanical waves into electrical signals in the ear?

    <p>The cochlea</p> Signup and view all the answers

    Which of the following is NOT a region within the inner ear?

    <p>Middle ear</p> Signup and view all the answers

    What is the function of the Eustachian tube?

    <p>To equilibrate air pressure across the tympanic membrane</p> Signup and view all the answers

    Which of the following is true about the cochlea?

    <p>It contains hair cells</p> Signup and view all the answers

    Where are the organs of Corti located?

    <p>On top of the basilar membrane in the cochlear duct</p> Signup and view all the answers

    Which nerve is responsible for transmitting electrical signals from the hair cells of the Organ of Corti to the brain?

    <p>Vestibulocochlear nerve</p> Signup and view all the answers

    Which cranial nerves transmit taste information to the primary gustatory cortex?

    <p>Facial (CN VII) and glossopharyngeal (CN IX)</p> Signup and view all the answers

    Where are the olfactory receptors located?

    <p>Within the olfactory epithelium in the nasal cavity</p> Signup and view all the answers

    What is the function of basal cells in the olfactory epithelium?

    <p>They differentiate into olfactory receptor cells</p> Signup and view all the answers

    What is the function of the lacrimal apparatus?

    <p>Produces and drains tears</p> Signup and view all the answers

    What is the flow of tears from production to drainage?

    <p>Lacrimal gland, lacrimal puncta, lacrimal sac, nasolacrimal duct</p> Signup and view all the answers

    Which sensory receptors are responsible for detecting light stimuli in the eye?

    <p>Photoreceptors</p> Signup and view all the answers

    True or false: Chemoreceptors are sensory receptors that respond to chemical stimuli.

    <p>True</p> Signup and view all the answers

    True or false: Exteroceptors are sensory receptors that respond to stimuli arising inside of the body.

    <p>False</p> Signup and view all the answers

    True or false: The tongue is the sensory organ for taste.

    <p>True</p> Signup and view all the answers

    True or false: Filiform papillae are one of the four types of papillae found on the tongue.

    <p>True</p> Signup and view all the answers

    True or false: Gustation is one of the general senses localized in the skin and internal organs.

    <p>False</p> Signup and view all the answers

    True or false: Olfaction is a special sense localized in the head region.

    <p>True</p> Signup and view all the answers

    True or false: Taste buds contain three cell types: gustatory receptor cells, supporting cells, and basal cells?

    <p>True</p> Signup and view all the answers

    True or false: The olfactory epithelium contains olfactory receptor neurons, supporting cells, and basal cells?

    <p>True</p> Signup and view all the answers

    True or false: The olfactory glands produce mucus that dissolves odorants?

    <p>True</p> Signup and view all the answers

    True or false: The olfactory nerve transmits information directly to the primary olfactory cortex without going through the thalamus?

    <p>True</p> Signup and view all the answers

    True or false: Photoreceptors are the sensory receptors responsible for detecting light stimuli in the eye?

    <p>True</p> Signup and view all the answers

    True or false: The lacrimal apparatus continuously cleans the anterior surface of the eye and prevents bacterial infection through the action of lysozyme?

    <p>True</p> Signup and view all the answers

    True or false: The middle ear consists of a space spanned by three small bones called ossicles?

    <p>True</p> Signup and view all the answers

    True or false: The inner ear is responsible for transforming mechanical waves into electrical signals?

    <p>True</p> Signup and view all the answers

    True or false: The cochlea is a spiral-shaped tube divided into two compartments?

    <p>False</p> Signup and view all the answers

    True or false: The basilar membrane is located between the organs of Corti and the scala tympani?

    <p>True</p> Signup and view all the answers

    True or false: The hair cells of the Organ of Corti transmit their electrical signals to the vestibulocochlear nerve?

    <p>True</p> Signup and view all the answers

    True or false: The vestibule is responsible for detecting rotational acceleration?

    <p>False</p> Signup and view all the answers

    True or false: The fibrous tunic of the eye includes the white sclera and the clear cornea.

    <p>True</p> Signup and view all the answers

    True or false: The vascular tunic of the eye is composed of the iris, ciliary body, and choroid.

    <p>True</p> Signup and view all the answers

    True or false: The neural tunic or retina of the eye contains the photoreceptors involved in receiving and processing light.

    <p>True</p> Signup and view all the answers

    True or false: The fovea centralis is the area of the retina that lacks supporting cells and blood vessels, resulting in the greatest visual acuity.

    <p>True</p> Signup and view all the answers

    True or false: The optic disc, located at the posterior side of the eye, creates a blind spot in our vision.

    <p>True</p> Signup and view all the answers

    True or false: Light passes through the vitreous humor and lands on the retina in the posterior cavity of the eye.

    <p>True</p> Signup and view all the answers

    True or false: The otolithic membrane is a gel-like substance that the hair cells of the vestibule and semicircular canals extend into.

    <p>True</p> Signup and view all the answers

    True or false: The otoliths are calcium carbonate crystals that are located on top of the otolithic membrane.

    <p>True</p> Signup and view all the answers

    True or false: When the head moves, the otoliths remain stationary and do not move.

    <p>False</p> Signup and view all the answers

    True or false: The hair cells within each ampulla are embedded in a region of the membranous labyrinth called the crista ampullaris.

    <p>True</p> Signup and view all the answers

    True or false: The cupula is a gelatinous layer that the hair cells of the vestibule and semicircular canals extend into.

    <p>True</p> Signup and view all the answers

    True or false: As the head rotates in a plane parallel to the semicircular canal, the fluid deflects the cupula in the same direction as the head movement.

    <p>False</p> Signup and view all the answers

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