|
The tectum (Latin: roof) is the dorsal part of the midbrain, derived in embryonic development from the alar plate of the neural tube. In adult humans it is present only in the mesencephalon (midbrain), as the inferior and the superior colliculi. Both colliculi also have descending projections to the paramedian pontine reticular formation and spinal cord, and thus can be involved in responses to stimuli faster than cortical processing would allow. The term "tectal plate" (or "quadrigeminal plate") is used to describe the junction of the gray and white matter in the embryo. (, )
See also | |||||||||||||||||||||
|
| ||||||||||||||||||||||
 |
|
| |