Brain control of Movement: Motor Control I, II & III Flashcards
What are the 3 functional hierarchy or motor control ?
Strategy
Tactics
Execution
What are the 2 lateral pathways within the spinal cord ?
Corticospinal tract and Rubrospinal tract
What are the 4 ventromediial pathways within the spine ?
Tectospinal tract
Vestibular spinal tract
Pontine spinal tract and
Medullary reticulospinal tract
Where does the corticospinal tract originate within the brain ?
Areas 4 and 6
What happens to the CST at the level of the medullary pyramids ?
The CST decussates
Crosses over
Where does the RST originate from ?
The red nucleus of the midbrain
What do the 2 lateral spinal tracts control ?
Voluntary movement
What 2 ventromedial pathways control posture and locomotion ?
Vestibulospinal and tectospinal tracts
What specific control does the Vestibulospinal stract have ?
Stabilizes the head and the neck
What specific control does the Tectospinal tract have ?
Ensures the eyes remain stable when the body moves
The pontine and reticulospinal tracts______
Control the trunk and anti-gravity muscles
Motor tracts originate _____ and travel_____
in the brain
downwards towards the muscles.
The medial tracts from the brainstem control______
posture and balance and orientating mechanisms
The lateral tracts from the cortex control_____
the precise skilled voluntary movements
The primary motor area is what area within the brain ?
Area 4
The pre-motor area lies ____ of the motor area and is area_____
in front of
6
What are the 2 areas which area 6 is split into
Supplementary motor area (SMA)
Pre-motor area (PMA)
Define readiness potential
Pre-motor potential is the measure of activity in the motor cortex & SMA of the brain leading to voluntary muscle movement
What is babinski sign ?
Plantar extension (abnormal) instead of plantar flexion
What are the major components of the basal ganglia ?
The corpus striatum which consists of the caudate nucleus and the putamen and the globus pallidus
