into to movement: motor systems motor control and motor learning Flashcards
Where does the corticospinal pathway originate?
Areas 4(primary motor) and 6
What is the function of the corticobulbar pathway?
Fine motor output to face. Chewing talking facial expression
The corticobulbar pathway has primarily bilateral projections except for which 2 areas?
- Lower face muscles
2. Spinal accessory nerve projections.
Name two cortical pathways
- Corticospinal
2. corticobulbar
Name the five subcritical pathways
1Rubrospinal 2Vestibulspinal 3Lateral medullary reticulospinal 4medial pontine reticulospinal 5tectospinal
Where does the rubrospinal pathway get information?
Cerebellum, primary and premotor cortices
Where does the rubrosponal pathway project to?
Cervical cord
The rubrospinal pathway joins this pathway just below the pond
Corticospinal
What is the function of the rubrospinal pathway
Activate flexor motor neurons and inhibit extensor motor neurons
Is the Rubrospinal pathway is a medial or lateral pathway?
Lateral
What kind of input does the tectospinal pathway receive?
Retinal, visual cortical, somatosensory, and auditory
T/F upper motor neuron cell body and axon reside in pns
False. Cns
T/f lower motor neuron cell bodies reside in cns and axons in pns
True.
_____ is 1 alpha motor neuron and the muscle fibers it innervated
Motor unit
As force increases, _____decreases
Precision