AII amacrine cells

High school (ages 12+)
Human Body

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/aii-amacrine-cells

1. What is the cellular identity?
2. What is the developmental lineage?
3. What are AII amacrine cells and why are they important for seeing in the dark?
4. How do AII amacrine cells help your eye adapt to different light levels?

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the cellular identity?Glycinergic inhibitory interneuron
2. What is the developmental lineage?Derived from retinal progenitor cells during retinogenesis
3. What are AII amacrine cells and why are they important for seeing in the dark?AII amacrine cells are tiny cells in your eye that help you see when it’s dim. They connect signals from rod cells, which work best in low light, to cone cells so you can still spot shapes and motion.
4. How do AII amacrine cells help your eye adapt to different light levels?They receive signals from rod cells and send them to cone cells, adjusting how strong the message is. This lets your eye see clearly in both bright and dark conditions.

Interneuron: A neuron that connects other neurons within the same or different parts of the central nervous system.
Gap Junction: A protein-lined pore that allows direct, electrical communication between adjacent cells.
GABA: Gamma-aminobutyric acid, a major inhibitory neurotransmitter in the central nervous system.