The rod photoreceptor’s synaptic ending is called?

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Test your knowledge on photoreceptors. Use flashcards and multiple-choice questions, each with hints and explanations. Prepare for your test with confidence!

Multiple Choice

The rod photoreceptor’s synaptic ending is called?

Explanation:
Rods terminate in a small spherical synaptic ending in the outer plexiform layer known as a spherule. This rounded rod terminal houses a ribbon synapse that primarily connections with rod bipolar cells (with horizontal cells nearby). The term spherule is used specifically for rod endings, whereas cones have pedicles as their synaptic endings. Generic terms like terminal or bouton aren’t the standard name for the rod ending in the retina, which is why spherule is the best fit.

Rods terminate in a small spherical synaptic ending in the outer plexiform layer known as a spherule. This rounded rod terminal houses a ribbon synapse that primarily connections with rod bipolar cells (with horizontal cells nearby). The term spherule is used specifically for rod endings, whereas cones have pedicles as their synaptic endings. Generic terms like terminal or bouton aren’t the standard name for the rod ending in the retina, which is why spherule is the best fit.

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