Citation, DOI, disclosures and article data
At the time the article was created Jeremy Jones had no recorded disclosures.View Jeremy Jones's current disclosures
At the time the article was last revised Frank Gaillard had the following disclosures:
- Biogen Australia Pty Ltd, Investigator-Initiated Research Grant for CAD software in multiple sclerosis: finished Oct 2021 (past)
These were assessed during peer review and were determined to not be relevant to the changes that were made.View Frank Gaillard's current disclosures
The midbrain, or mesencephalon (plural: mesencephala or mesencephalons), is the most rostral part of the brainstem and sits above the pons and is adjoined rostrally to the thalamus. During development, the midbrain forms from the middle of three vesicles that arise from the neural tube.
When viewed in cross-section, the midbrain can be divided into three portions:
Sitting posteriorly, the tectum (Latin for "roof" or "covering") is composed of the tectal (quadrigeminal) plate and superior and inferior colliculi. The tectum is unique to the midbrain and does not have a counterpart in the rest of the brainstem.
The midbrain is supplied by the vertebrobasilar circulation, from small penetrating branches of the: