Tectospinal tract

In this article, we will explore Tectospinal tract from different angles and perspectives. _Var1 is a topic that has captured the attention of academics, professionals and the general public due to its relevance and impact on various aspects of daily life. Over the next few lines, we will examine the implications of Tectospinal tract in society, its evolution over time and the future perspectives that are envisioned around this topic. From its influence on popular culture to its implications in global politics, Tectospinal tract has generated rich debate and growing interest among those seeking to understand its importance and reach.
Not to be confused with spinotectal tract.
Tectospinal tract
Diagram showing possible connection of long descending fibers from higher centers with the motor cells of the ventral column through association fibers. ("Tectospinal fasciculus" labeled at center right.)
Diagram of the principal fasciculi of the spinal cord. ("Tectospinal fasciculus" labeled at center right, in red.)
Details
Identifiers
Latintractus tectospinalis
MeSHD065844
NeuroLex IDbirnlex_759
TA98A14.1.02.211
A14.1.04.112
TA26119
FMA72620
Anatomical terminology

In humans, the tectospinal tract (or colliculospinal tract) is a nerve tract that coordinates head and eye movements. This tract is part of the extrapyramidal system and connects the midbrain tectum, and cervical regions of the spinal cord.

It is responsible for motor impulses that arise from one side of the midbrain to muscles on the opposite side of the body (contralateral). The function of the tectospinal tract is to mediate reflex postural movements of the head in response to visual and auditory stimuli.

The portion of the midbrain from where this tract originates is the superior colliculus, which receives afferents from the visual nuclei (primarily the oculomotor nuclei complex), then projects to the contralateral (decussating dorsal to the mesencephalic duct) and ipsilateral portion of the first cervical neuromeres of the spinal cord, the oculomotor and trochlear nuclei in the midbrain and the abducens nucleus in the caudal portion of the pons.

The tract descends to the cervical spinal cord to terminate in Rexed laminae VI, VII, and VIII to coordinate head, neck, and eye movements, primarily in response to visual stimuli.

See also

References

  1. ^ Pocock, Gillian; Richards, Christopher D. (2006). Human physiology : the basis of medicine (3rd ed.). Oxford: Oxford University Press. p. 152. ISBN 978-0-19-856878-0.

External links

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