Anatomy Exam About Eyes And Retina

28 Questions | Total Attempts: 613

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Anatomy Exam About Eyes And Retina

The eye is our organ of sight. The eye has a number of components which include but are not limited to the cornea, iris, pupil, lens, retina, macula, optic nerve, choroid and vitreous. The retina is a thin layer of tissue that lines the back of the eye on the inside. It is located near the optic nerve. The purpose of the retina is to receive light that the lens has focused, convert the light into neural signals, and send these signals on to the brain for visual recognition. Take this quiz to check your anatomical knowledge


Questions and Answers
  • 1. 
    The sclera is adjacent to the retina.
    • A. 

      True

    • B. 

      False

  • 2. 
    What is the function of the RPE?
    • A. 

      Prevent back scatter of light

    • B. 

      Nourishment for the retina

    • C. 

      Regeneration of photopigment

    • D. 

      A and c

    • E. 

      All of the above

  • 3. 
    What is the main purpose of the outer limiting membrane (external liminting membrane)?
    • A. 

      Outer segment regeneration

    • B. 

      Sets up electrical charge across retina

    • C. 

      Barrier for selective wavelengths of light

  • 4. 
    The inner plexiform layer contains synapses of the photoreceptors and bipolar cells
    • A. 

      True

    • B. 

      False

  • 5. 
    Out of all the cells in the retina, what type has the most sub-types?
    • A. 

      Bipolar

    • B. 

      Ganglion

    • C. 

      Amacrine

    • D. 

      Horizontal

  • 6. 
    Indicate what common features are found in all species in the anatomy of photoreceptors.
    • A. 

      Outer segment

    • B. 

      Inner segment

    • C. 

      Nucleus

    • D. 

      Synaptic terminal

  • 7. 
    Cone OS is smaller than it's IS
    • A. 

      True

    • B. 

      False

  • 8. 
    Rod OS is larger than its IS
    • A. 

      True

    • B. 

      False

  • 9. 
    The nucleus in cones is closer to the IS than rods.
    • A. 

      True

    • B. 

      False

  • 10. 
    The cone foot plate (pedicle) is much larger than rods foot plate (spherule)
    • A. 

      True

    • B. 

      False

  • 11. 
    Photogiment discs have a high concentration of K inside
    • A. 

      True

    • B. 

      False

  • 12. 
    Indicate the components of a disc.
    • A. 

      Lipoprotein

    • B. 

      Carbohydrate

    • C. 

      Visual pigment

    • D. 

      Glycoprotein

  • 13. 
    How many different photopigments are there?
    • A. 

      1

    • B. 

      3

    • C. 

      4

  • 14. 
    The function of the IS is:
    • A. 

      Energy production

    • B. 

      Homeostasis regulation

    • C. 

      Produce the disc membranes

  • 15. 
    What is the cilium that connects the IS and OS made of?
  • 16. 
    The cilium acts as a connection/shuttle between the OS and IS.  What other function does it have?
    • A. 

      Generates photopigment

    • B. 

      Regenerates the OS

    • C. 

      Regenerates the IS

  • 17. 
    The foveola contains which type of cells?
    • A. 

      Rods

    • B. 

      Cones

    • C. 

      Glial cells

    • D. 

      Oligodendrocytes

  • 18. 
    The fovea contains:
    • A. 

      Rods

    • B. 

      Cones

    • C. 

      Oligodendrocytes

  • 19. 
    The more eccentric we get from the fovea, the smaller the rods and cones become.
    • A. 

      True

    • B. 

      False

  • 20. 
    There are 3 types of astrocytes and they are differentiated based on functional differences
    • A. 

      True

    • B. 

      False

  • 21. 
    Where are astrocytes commonly found?
    • A. 

      Near blood vessels

    • B. 

      Near optic nerve

    • C. 

      Near fovea

  • 22. 
    They are many oligodendrocytes in the retina
    • A. 

      True

    • B. 

      False

  • 23. 
    What is the funciton of Muller cells in the retina?
    • A. 

      Physical support

    • B. 

      Control the extracellular enviornment

    • C. 

      Both

    • D. 

      Neither

  • 24. 
    The Muller cells in the retina span from the internal limiting membrane to the inner pleixform layer.
    • A. 

      True

    • B. 

      False

  • 25. 
    Middle wavelength cones form a martix and inbetween the matrix there are short and long wavelength cones
    • A. 

      True

    • B. 

      False

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