P ganglion cells project to which LGN layers?

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Study for the NBEO Ocular Anatomy Posterior Segment and Cranial Nerves Test. Prepare using flashcards and multiple choice questions. Get ready for your exam with hints and explanations for each question!

Multiple Choice

P ganglion cells project to which LGN layers?

Explanation:
The P ganglion cells feed into the parvocellular portion of the LGN. In primates, the LGN has six layers: the outer magnocellular layers (1 and 2) receive input from M cells, while the inner four layers (3 through 6) receive input from P cells. Since the P pathway carries high‑resolution, color‑sensitive information with small receptive fields, its projections line up with the inner four parvocellular layers. So the layers receiving P cell input are 3 through 6.

The P ganglion cells feed into the parvocellular portion of the LGN. In primates, the LGN has six layers: the outer magnocellular layers (1 and 2) receive input from M cells, while the inner four layers (3 through 6) receive input from P cells. Since the P pathway carries high‑resolution, color‑sensitive information with small receptive fields, its projections line up with the inner four parvocellular layers. So the layers receiving P cell input are 3 through 6.

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