W22-L1: Locomotion and Posture Flashcards
1
Q
What is muscle fibrillation?
A
tiny contraction cause by activity of a single muscle cell - can be due to hypersensitivity, increased AChr expression
2
Q
What is muscle fasciculation?
A
groups of muscle fibres contracting involuntarily, probably a motor unit synaptically activating due to spontaneous activation of a degenerating MN / axon
3
Q
What do vestibulospinal tracts have a role in?
A
Maintaining posture
4
Q
What do reticulospinal tracts have a role in?
A
controls muscles of the midline (posture control)
5
Q
What do colliculospinal tracts have a role in?
A
Orientating towards stimulus
6
Q
What do ventromedial white matter tracts have a role in compared to lateral white matter tracts
A
Posture rather than limb movement
