Movement Flashcards
Where are alpha motoneurons located in spinal cord?
In anterior horn of spinal cord.
Which types of skeletal muscles do peripheral nerves innervate?
Muscles in trunk/limbs.
Which types of skeletal muscles do cranial nerves innervate?
Muscles in face, trunk and neck.
What is the definition of a tract?
Collect of axons in the central nervous system that has common origin and destination.
What ares types of indirect and direct pathways present?
Direct: -Corticospinal Tract -Corticobulbar Tract Indirect: -Vestibulospinal Tract -Tectospinal Tract -Reticulospinal Tract -Rubrospinal Tract
What is the start, end, nerve type and function of vestibulospinal tract?
Motor Cortex Vestibular Nucleus Vestibulospinal Tract Spinal Cord Peripheral Nerve Skeletal Muscle Function: Head stability (keeps eyes stable as body moves)
What is the start, end, nerve type and function of tectospinal tract?
Motor Cortex Superior Colliculus Tectospinal Tract Spinal Cord Peripheral Nerve Skeletal Muscle Function: Orientation of head towards visual target.
What is the start, end, nerve type and function of reticulospinal tract?
Motor Cortex Reticular Formation Recticulospinal Tract Spinal Cord Peripheral Nerve Skeletal Muscle Function: Maintenance of standing posture
What is the start, end, nerve type and function of rubrospinal tract?
Motor Cortex Red Nucleus Rubrospinal Tract Spinal Cord Peripheral Nerve Skeletal Muscle Function: Unknown
What is the start, end, nerve type and function of corticospinal tract?
Motor Cortex Spinal Cord Peripheral Nerve Skeletal Muscle Function: Goal directed limb movement.
What is the start, end, nerve type and function of corticobulbar tract?
Motor Cortex Brain Stem Cranial Nerve Skeletal Muscle Function: Controls skeletal muscles innervated by cranial nerves.
What is the process of movement, with what relevant brain structures involved?
1) Wanting/deciding to move (prefrontal cortex)
2) Working out where your body is in relation to where you want to move to (primary somatosensory cortex)
3) Planning how you are going to move (premotor cortex & supplementary motor area)
4) Starting to move (substantial nigra and basal ganglia)
5) Commanding skeletal muscle to contract (motor cortex)
6) Skeletal muscle contraction and movement
7) Monitoring, modulation of ongoing movement (cerebellum)
8) Use sensory info to guide movement and determine its success (sensory cortex)
What is function of prefrontal cortex?
Decision making, working memory, planning
What is function of primary somatosensory cortex?
Provides information in limb position
What is function of primary somatosensory cortex?
Provides information in limb position