Related Experiment Video
Updated: Mar 10, 2026

04:42
Micro-scale Engineering for Cell Biology
Published on: October 1, 2007
5.3K
Think small.
Luis A Bezares-Calderón1, Gáspár Jékely1
1Max-Planck-Institute for Developmental Biology, Tübingen, Germany.
Elife
|December 7, 2016
Summary
Researchers mapped the entire nervous system of a sea squirt tadpole larva. This groundbreaking work reveals that even simple nervous systems hold complex secrets, highlighting the importance of studying small brains.
Area of Science:
- Neuroscience
- Developmental Biology
- Zoology
Background:
- Understanding the nervous system is key to comprehending animal behavior and evolution.
- Mapping neural circuits provides a foundation for studying brain function.
Purpose of the Study:
- To fully map the complete nervous system of the sea squirt tadpole larva.
- To investigate the complexity of neural connections in a simple organism.
Main Methods:
- Utilized advanced neuroimaging techniques.
- Employed serial section electron microscopy.
- Reconstructed the neural network from imaging data.
Main Results:
- The entire nervous system of the sea squirt tadpole larva was successfully mapped.
- This represents only the second animal nervous system to be completely charted.
- The detailed map revealed intricate neural circuitry.
Conclusions:
- The study confirms that even the smallest brains possess significant complexity.
- Further research into simple nervous systems can yield profound insights into neurobiology.
- This work provides a crucial reference for comparative neuroanatomy.
Related Concept Videos
The Small x Assumption
50.4K
If a reaction has a small equilibrium constant, the equilibrium position favors the reactants. In such reactions, a negligible change in concentration may occur if the initial concentrations of reactants are high and the Kc value is small. In such circumstances, the equilibrium concentration is approximately equal to its initial concentration. This estimation can be used to simplify the equilibrium calculations by assuming that some equilibrium concentrations are equal to the initial...
50.4K
Conservation of Small Populations
17.6K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
17.6K
Cell Size
134.9K
Cell sizes vary widely among and within organisms. Bacterial cells range between 1-10 micrometers (μm)and are considerably smaller than most eukaryotic cells. The smallest bacteria are 0.1 μm in diameter—about a thousand times smaller than eukaryotic cells, which typically range from 10-100 μm.
Surface Area
Cells can take in nutrients and water via diffusion through the plasma membrane itself or through specific channels in the membrane. The area of the membrane surrounding...
Surface Area
Cells can take in nutrients and water via diffusion through the plasma membrane itself or through specific channels in the membrane. The area of the membrane surrounding...
134.9K
Brick Sizes
398
Brick sizing plays a crucial role in construction, influencing both the aesthetics and structural integrity of buildings. Bricks are defined by three dimensions: width, thickness, and length. They are commonly designed to fit modular measurements, typically in multiples of 4 inches or 8 inches in width, to facilitate uniform construction and compatibility with other building materials.
Modular bricks are the most common type and are sized to include the mortar joint, which is essential for...
Modular bricks are the most common type and are sized to include the mortar joint, which is essential for...
398
Chunking
479
Chunking is a powerful cognitive technique that improves short-term memory retention by organizing information into smaller, more manageable units. The brain, limited by working memory capacity, can more easily process and store information when it is divided into "chunks" rather than presented as discrete, unrelated elements. Chunking is especially useful when dealing with large amounts of information, such as numerical sequences, words, or complex ideas.
The principle behind chunking...
The principle behind chunking...
479
Schemas
12.5K
A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
12.5K

