Tectum/tegmentum Flashcards

1
Q

Tectum

A

Superior colliculus and inferior colliculus

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2
Q

Superior colliculus

A

Tectum: Visual orienting/ head turning

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3
Q

Inferior colliculus

A

Tectum: Auditory processing

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4
Q

Tagmentum

A

Reticular formation, periaqueductal gray, and substantia nigra

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5
Q

Reticular formation

A

over 90 nuclei with diffuse network of neuron interconnections with complex dendritic and axonal processes

  • receives sensory input and projects to cortex, thalamus and spinal cord
  • plays role in arousal, sleep, muscle tone, movement
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6
Q

Periaqueductal gray

A

Nuclei involved in control of movement

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7
Q

Substantia nigra

A
  • involved in motor control
  • project to caudate and putamen
  • Parkinson’s
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