AP 211 Review Exam 1

155 Questions | Total Attempts: 82

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AP Quizzes & Trivia

Questions and Answers
  • 1. 
    Gustatory receptors are sensitive to dissolved chemicals but insensitive to light. This is due to
    • A. 

      Receptor specificity

    • B. 

      Accessory cells

    • C. 

      Receptor potentials

    • D. 

      The fact that they are interoceptors

    • E. 

      Both B and C

  • 2. 
    Olfactory glands
    • A. 

      Support the olfactory epithelium

    • B. 

      House the sense of smell

    • C. 

      React to aromatic molecules

    • D. 

      Coat the olfactory epithelium with a pigmented mucus

    • E. 

      Group as olfactory bulbs

  • 3. 
    The mucus that covers the olfactory epithelium does all of the following, except that it
    • A. 

      Keeps the tissue moist

    • B. 

      Dissolves unwanted chemicals and washes them away

    • C. 

      Keeps the tissue free of particles

    • D. 

      Provides a medium to dissolve odorants

    • E. 

      Dilutes potentially dangerous odorants

  • 4. 
    All of the following are true of olfactory pathways, except
    • A. 

      They exhibit a considerable amount of convergence

    • B. 

      They project first to the mamilllary bodies and then to the thalamus

    • C. 

      They are the only sensory pathways to reach the forebrain without first synapsing in the thalamus

    • D. 

      Primary afferents synapse in the olfactory bulb

  • 5. 
    All of the following are true of the lacrimal glands except that they
    • A. 

      Produce lysozyme

    • B. 

      Produce a strongly hypertonic fluid

    • C. 

      Produce watery, slightly alkaline secretions

    • D. 

      Are located in recesses in the frontal bones

    • E. 

      Produce most of the volume of tears

  • 6. 
    Gustatory receptors are located
    • A. 

      In the ear

    • B. 

      On the surface of the tongue

    • C. 

      On the skin

    • D. 

      In the eye

    • E. 

      In the nose

  • 7. 
    The palpebrae are connected at the
    • A. 

      Chalazion

    • B. 

      Eyelids

    • C. 

      Conjunctiva

    • D. 

      Lateral and medial canthus

    • E. 

      Lacrimal caruncle

  • 8. 
    Olfactory receptors send axons through the cribriform plate. They synapse on neurons in the
    • A. 

      Olfactory bulb

    • B. 

      Medial geniculate

    • C. 

      Medulla oblongata

    • D. 

      Cerebral cortex

    • E. 

      Olfactory tract

  • 9. 
    Abnormally slow depolarization of the ventricles would most change the shape of the                    in and ECG tracing.
    • A. 

      R-T interval

    • B. 

      P-R interval

    • C. 

      T wave

    • D. 

      QRS complex

    • E. 

      P wave

  • 10. 
    Which of the following is true about rhodopsin?
    • A. 

      Is the visual pigment in rods

    • B. 

      Called visual purple

    • C. 

      Is bleached during photoreception

    • D. 

      Consists of opsin + retinal

    • E. 

      All of the above

  • 11. 
    A pigment synthesized from vitamin A is
    • A. 

      CGMP

    • B. 

      Opsin

    • C. 

      Retinal

    • D. 

      Rhodopsin

    • E. 

      Transducin

  • 12. 
    All of the following are true of the fibrous tunic of the eye, except that it
    • A. 

      Is where extrinsic eye muscles insert

    • B. 

      Contributes substantial focusing power

    • C. 

      Provides mechanical support and some protection for the eye

    • D. 

      Produces aqueous humor

    • E. 

      Consists of the sclera, limbus, and cornea

  • 13. 
    Which of the following is true of the vascular tunic of the eye?
    • A. 

      Controls the shape of the lens

    • B. 

      Provides a route for blood vessels and lymphatics that supply tissues of the eye

    • C. 

      Regulates the amount of light entering the eye

    • D. 

      Secretes and reabsorbs the aqueous humor

    • E. 

      All of the above

  • 14. 
    The palpebrae
    • A. 

      Cover and protect the eye

    • B. 

      Contain tarsal glands

    • C. 

      Are controlled by cranial nerves

    • D. 

      Support the lateral rectus muscles of the eye

    • E. 

      A, B and C

  • 15. 
    Which of the following statements concerning vision is false?
    • A. 

      Fibers of the optic nerve synapse at the lateral geniculates of the thalamus

    • B. 

      Approximately half of the fibers in each optic nerve cross to opposite sides of the brain at the optic chiasm

    • C. 

      The image that is formed on the retina is inverted

    • D. 

      The visual cortex of the brain receives the entire field of vision

    • E. 

      The entire retina receives equal representation in the visual cortex

  • 16. 
    A structure that is located at the medial canthus and contains glands that contribute to a gritty deposit is the
    • A. 

      Lacrimal caruncle

    • B. 

      Conjunctiva

    • C. 

      Chalazion

    • D. 

      Meibomian gland

    • E. 

      Palpebra

  • 17. 
    Which of the following procudes a lipid-rich secretion that prevents the upper and lower eyelids from sticking together at their edges?
    • A. 

      Palpebra

    • B. 

      Lacrimal caruncle

    • C. 

      Conjuntiva

    • D. 

      Chalazion

    • E. 

      Tarsal gland

  • 18. 
    The vitreous humor
    • A. 

      Is replaced at the rate of 20 percent per year until middle age

    • B. 

      Fills the posterior cavity

    • C. 

      Helps to stabilize the eye and give physical support to the retina

    • D. 

      A, B and C

    • E. 

      B and C only

  • 19. 
    The                   covers most of the exposed surface of the eye
    • A. 

      Conjunctiva

    • B. 

      Canthus

    • C. 

      Iris

    • D. 

      Anterior chamber

    • E. 

      Cornea

  • 20. 
    The transparent portion of the fibrous tunic is the
    • A. 

      Conjunctiva

    • B. 

      Canthus

    • C. 

      Cornea

    • D. 

      Iris

    • E. 

      Pupil

  • 21. 
    The part of the eye that determines eye color is the
    • A. 

      Iris

    • B. 

      Canal of Schlemm

    • C. 

      Pupil

    • D. 

      Cornea

    • E. 

      Conjunctiva

  • 22. 
    The opening in the iris through which light passes is the
    • A. 

      Anterior chamber

    • B. 

      Cornea

    • C. 

      Conjunctiva

    • D. 

      Posterior chamber

    • E. 

      Pupil

  • 23. 
    The space between the cornea and the iris is the
    • A. 

      Posterior cavity

    • B. 

      Aqueous humor

    • C. 

      Vitreous segment

    • D. 

      Anterior segment or chamber

    • E. 

      Pupil

  • 24. 
    The space between the iris and ciliary body and the lens is the
    • A. 

      Pupil

    • B. 

      Aqueous segment

    • C. 

      Posterior chamber or segment

    • D. 

      Vitreous humor

    • E. 

      Anterior cavity

  • 25. 
    What structure changes the shape of the lens for far and near vision?
    • A. 

      Extrinsic eye muscle

    • B. 

      Aqueous humor

    • C. 

      Iris

    • D. 

      Ciliary body

    • E. 

      None, because the lens is rigid

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