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 (B)</p> Signup and view all the answers

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

<p>Color and form perception (C)</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 (D)</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 (D)</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) (C)</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 (D)</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 (A)</p> Signup and view all the answers

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

<p>Lateral geniculate nucleus (D)</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 (C)</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 (B)</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 (C)</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) (C)</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 (B)</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 (C)</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) (D)</p> Signup and view all the answers

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