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Encyclopedia > Tectospinal tract

The tectospinal tract is part of the indirect extrapyramidal tract and is responsible for coordinating head and eye movements, It is responsible for impulses that are motor. These impulses arise from one side of the midbrain to muscles on the opposite side of the body. The portion of the midbrain from where this tract originiates is the superior colliculus, which receives afferents from the visual nuclei (primarily the occulomotor nuclei complex), then projects to the contralateral portion of the spinal cord. 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. A human head In anatomy, the head of an animal is the anterior part (from anatomical position) that comprises the mouth, the brain and various sensory organs (e. ... To meet Wikipedias quality standards, this article or section may require cleanup. ...


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Motor Systems (815 words)
From the ventral surface of the midbrain within the cerebral peduncles, the tract continues through the pons to the ventral surface of the medulla, where it is visible as a pyramidal shaped bundle of fibers on each side known as the pyramids (thus the other name, pyramidal tract).
The tectospinal tract, the medial and lateral vestibulospinal and reticulospinal tracts, and the anterior corticospinal tract form the medial tracts.
These tracts descend in the medial, ventral white matter of the spinal cord and terminate in the medial regions of the ventral horns where motor neurons that innervate axial and proximal limb musculature are located.
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