Flashcards in Last bits Deck (13):
Of the following, which excites extensors, and inhibits flexors:
-Lateral reticulospinal tract
-Medial reticulospinal tract
-Lateral vestibulospinal tract
-Medial vestibulospinal tract
Medial reticulo and lateral vestibulospinal tracts
Where does the input for the labyrinthian righting reflex come from?
Upper pons lesion will produce decerebrate or decorticate posturing?
Lesion below the red nuclei, but above the vestibular nuclei will allow what tract to facilitate extension and cause decerebrate posturing?
Lateral Vestibulospinal tract
Where are the two places the lesions can occur to produce decorticate posturing?
Why is it that a lesion to the internal capsule or the midbrain causes decorticate posturing?
Release of cortical influence over the vestibulospinal and neck reflexes
Lesions to the spinocerebellum causes hyper or hypotonia?
What are the three cortical areas involved in the motor loop of the basal ganglia?
What are the two cortical areas involved in the oculomotor loop of the basal ganglia?
Supplementary eye fields
What is the cortical area involved in the prefrontal loop of the basal ganglia?
Dorsolateral prefrontal area
What are the two cortical areas involved in the limbic loop of the basal ganglia?
What are the functions of the vermal part of the spinocerebellar tract? (2)
Axial and proximal muscle regulation and eye saccades