Central Visual Pathways - Lateral Geniculate Nucleus
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Questions and Answers

What is the primary function of the M-type retinal ganglion cells?

  • Motion perception (correct)
  • Contrast detection
  • Color and form perception
  • Spatial resolution
  • Where do the axons of the retinal ganglion cells project to in the brain?

  • Primary visual cortex
  • Lateral geniculate nucleus (correct)
  • Superior colliculus
  • Optic chiasm
  • What is the purpose of the retinotopic organization in the primary visual cortex?

  • To improve motion detection
  • To increase the receptive field size of neurons
  • To preserve the spatial relationships of the visual field (correct)
  • To enhance color perception
  • What is the role of the optic radiation in the visual pathway?

    <p>To transmit visual information from the lateral geniculate nucleus to the primary visual cortex</p> Signup and view all the answers

    What is the function of the P-type retinal ganglion cells?

    <p>Color and form perception</p> Signup and view all the answers

    What is the purpose of the optic chiasm in the visual pathway?

    <p>To separate visual information from the left and right visual fields</p> Signup and view all the answers

    What structure in the brain relays visual information to the visual cortex for conscious perception of vision?

    <p>Suprachiasmatic nucleus</p> Signup and view all the answers

    Which stream in the central visual pathways is responsible for motion and location analysis?

    <p>Dorsal stream (M pathway)</p> Signup and view all the answers

    In the retinotopic organization, how are visual stimuli mapped in the brain?

    <p>Based on their location in the visual field</p> Signup and view all the answers

    Which area of the brain is responsible for regulating circadian rhythms based on visual input?

    <p>Suprachiasmatic nucleus</p> Signup and view all the answers

    Where do ganglion cells synapse before transmitting visual information to the brain?

    <p>Lateral geniculate nucleus</p> Signup and view all the answers

    Which structure is involved in transmitting visual information from the lateral geniculate nucleus to the primary visual cortex?

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

    Which layers of the lateral geniculate nucleus (LGN) receive input from M-type ganglion cells?

    <p>Layers 1 and 2</p> Signup and view all the answers

    What is the purpose of the retinotopic organization in the lateral geniculate nucleus (LGN)?

    <p>To maintain the spatial arrangement of the visual field</p> Signup and view all the answers

    Where do the axons from the lateral geniculate nucleus (LGN) project?

    <p>Primary visual cortex (V1 or area 17)</p> Signup and view all the answers

    Which part of the optic radiation carries fibers representing the inferior retina (superior visual field)?

    <p>Meyer's loop in the temporal lobe</p> Signup and view all the answers

    What is the primary function of P-type ganglion cells in the visual pathway?

    <p>Enhancing visual acuity</p> Signup and view all the answers

    Which area of the brain is essential for conscious visual perception?

    <p>Primary visual cortex (V1 or area 17)</p> Signup and view all the answers

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