Term
| Corticospinal (Lateral) Descending |
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Definition
Starts - Motor Cortex
Ends - Spinal Cord
Decussates - Medulla
Function - Voluntary |
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Term
| Rubrospinal (Lateral) Descending |
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Definition
Starts - Motor Cortex
Ends - Spinal Cord
Decussates - Red Nucleus
Function - Limbs |
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Term
| Vestibulospinal (Ventromedial) Descending |
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Definition
Start - Motor Cortex
End - Spinal Cord
Decussates - N/A
Function - Posture |
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Term
| Tectospinal (Ventromedial) Descending |
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Definition
Starts - Motor Cortex
Ends - Spinal Cord
Decussates - n/a
Function - Head, trunk, eyes |
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Term
| Reticulospinal (Ventromedial) Descending |
|
Definition
Starts - Motor Cortex
Ends - Spinal Cord
Decussates - n/a
Function - Walking posture |
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Term
|
Definition
1. Decision from prefrontal cortex/parietal lobe
2. Movement planned by SMA and pre-SMA, input from thalamus and basal ganglia
3. Primary moto sens signal via lateral pathway
4. Lateral pathway signals to sinal motor neurons that stimulate muscle contraction |
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Term
|
Definition
Prefrontal cortex plans
Premotor cortex organizes movement
Motor cortex acts, produces movement |
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Term
| Lateral Pathway (Steps in pathway) |
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Definition
Forebrain (PMC)
Midbrain (Red nucleus)
Medulla
Spinal Cord |
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Term
| Ventromedial Pathway (Steps |
|
Definition
Forebrain
Midbrain - Superior colliculus
Pons - Pontine reticular formation
Medulla - Vestibular nucleus/Medulliary reticular formation
Spinal Cord - All the tracts (Medulliary, Pontine, Vestibularspinal, Tectospinal) |
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