Chiasm (anatomy)
In anatomy a chiasm is the spot where two structures cross, forming an X-shape (from Greek letter χ, Chi). Examples of chiasms are:
- A tendinous chiasm, the spot where two tendons cross. For example, the tendon of the flexor digitorum superficialis muscle, and the tendon of the flexor digitorum longus muscle which even forms two chiasms.
- In neuroanatomy, the crossing of fibres of a nerve or the crossing of two nerves.
| Chiasm | |
|---|---|
Schema of the optic chiasm and the trochlear chiasm in vertebrates. | |
| Details | |
| Function | Anatomical feature where two structures cross |
| Identifiers | |
| Latin | chiasma |
| Anatomical terms of neuroanatomy | |
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