Isolated brain

High school (ages 12+)
Science & Technology

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/isolated-brain

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 primary scientific discipline?Neuroscience, Physiology, Bioengineering
2. What is the key experimental technique?Perfusion of oxygenated artificial blood substitutes or submersion in artificial cerebrospinal fluid
3. How do scientists keep an isolated brain alive?For small animals, they soak the brain in a special fluid that has oxygen and food. For larger brains, they pump a blood‑like solution through the blood vessels so the brain gets oxygen and nutrients continuously.
4. Why do scientists study brains that are not inside a body?Studying an isolated brain lets researchers control everything around it, so they can learn how nerves talk to each other and how the brain makes memories or reacts to medicines.

Ex vivo: Studied or performed outside of a living organism, typically in a laboratory setting.
Cannulation: The surgical insertion of a cannula (a small tube) into a body cavity, duct, or vessel.
Synaptic Plasticity: The ability of synapses (connections between neurons) to strengthen or weaken over time, crucial for learning and memory.