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Questions and Answers
What is the staining characteristic of the nonmyelinated axons in the optic nerve head?
What is the staining characteristic of the nonmyelinated axons in the optic nerve head?
- They are only stained by Luxol fast blue at high magnification
- They are intensely stained by Luxol fast blue
- They are not stained by Luxol fast blue (correct)
- They are weakly stained by Luxol fast blue
Which of the following tissues separates the optic nerve fibers from the retinal layers?
Which of the following tissues separates the optic nerve fibers from the retinal layers?
- Intermediary tissue of Kuhnt (correct)
- Lamina cribrosa
- Marginal tissue of Elsching
- Border tissue of Jacoby
What is the location of the marginal tissue of Elsching?
What is the location of the marginal tissue of Elsching?
- Behind the lamina cribrosa
- Inner to the glial sheets
- Outer to the glial sheets (correct)
- Within the physiologic cup
What is the purpose of the central meniscus of Kuhnt?
What is the purpose of the central meniscus of Kuhnt?
What is the composition of the spur of collagenous tissue?
What is the composition of the spur of collagenous tissue?
What is the function of the astroglial membrane?
What is the function of the astroglial membrane?
What is the significance of the dotted lines in Figure 40.32?
What is the significance of the dotted lines in Figure 40.32?
What is the relationship between the optic nerve fibers and the connective tissue septa?
What is the relationship between the optic nerve fibers and the connective tissue septa?
What structure separates the nerve fascicles and their surrounding astrocytes at the lamina cribrosa?
What structure separates the nerve fascicles and their surrounding astrocytes at the lamina cribrosa?
What is the main component of the septal tissue?
What is the main component of the septal tissue?
At which point do the nerve fibers become myelinated?
At which point do the nerve fibers become myelinated?
What structure sends connective tissue to the anterior part of the lamina?
What structure sends connective tissue to the anterior part of the lamina?
What type of glial cell is present within the nerve fascicles?
What type of glial cell is present within the nerve fascicles?
What is the function of the astrocytes in the retina?
What is the function of the astrocytes in the retina?
What is the name of the glial lining continuous with the intermediary tissue of Kuhnt?
What is the name of the glial lining continuous with the intermediary tissue of Kuhnt?
What is the name of the structure where the nerve fibers terminate?
What is the name of the structure where the nerve fibers terminate?
What is the shape of the optic chiasm?
What is the shape of the optic chiasm?
Which nerve fibers connect the optic chiasm to the lateral geniculate visual nuclei?
Which nerve fibers connect the optic chiasm to the lateral geniculate visual nuclei?
What is the function of the lateral geniculate nucleus?
What is the function of the lateral geniculate nucleus?
Which part of the visual cortex is equivalent to Brodmann area 17?
Which part of the visual cortex is equivalent to Brodmann area 17?
What is the name of the tract that nerve fibers from the LGN form as they leave the LGN?
What is the name of the tract that nerve fibers from the LGN form as they leave the LGN?
Which artery supplies the outer retinal layers?
Which artery supplies the outer retinal layers?
What is the name of the network that supplies the superior part of the optic chiasm?
What is the name of the network that supplies the superior part of the optic chiasm?
Which artery supplies the optic tract?
Which artery supplies the optic tract?
Which artery supplies the middle radiations in the visual pathway?
Which artery supplies the middle radiations in the visual pathway?
What is the functional significance of the visual field?
What is the functional significance of the visual field?
Which structure receives fibers from the temporal retina?
Which structure receives fibers from the temporal retina?
What is the pattern of fibers from the nasal retina in the optic disc?
What is the pattern of fibers from the nasal retina in the optic disc?
Which part of the retina gives rise to the papillomacular bundle?
Which part of the retina gives rise to the papillomacular bundle?
Which artery supplies the striate cortex?
Which artery supplies the striate cortex?
What happens to the nasal fibers in the optic chiasm?
What happens to the nasal fibers in the optic chiasm?
What is the arrangement of axons in the nerve fiber layer of the retina?
What is the arrangement of axons in the nerve fiber layer of the retina?
In the optic chiasm, where do inferior peripheral nasal fibers cross?
In the optic chiasm, where do inferior peripheral nasal fibers cross?
What is the name of the loop formed by the superior peripheral nasal fibers in the optic tract?
What is the name of the loop formed by the superior peripheral nasal fibers in the optic tract?
In the optic tract, which fibers occupy the lateral area?
In the optic tract, which fibers occupy the lateral area?
In the lateral geniculate nucleus, which layers receive contralateral nasal retinal fibers?
In the lateral geniculate nucleus, which layers receive contralateral nasal retinal fibers?
Which fibers follow an indirect route to the occipital lobe through the temporal lobe?
Which fibers follow an indirect route to the occipital lobe through the temporal lobe?
Where do the inferior radiations terminate in the striate cortex?
Where do the inferior radiations terminate in the striate cortex?
Which part of the striate cortex receives projections from the macular area?
Which part of the striate cortex receives projections from the macular area?
Which side of the brain receives sensory input from the left side of the visual environment?
Which side of the brain receives sensory input from the left side of the visual environment?
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