Pathways Flashcards
Which pathways are reactive?
Spinothalamic
Which pathways are discriminative?
Dorsal column-medial leminicsus
Spinocerebellum
Which motor pathways are voluntary?
Pyramidal- cerebral cortex
- corticospinal
- corticobulbar
Which motor pathways are involuntary/ autonomous?
Extrapyrmidal- brainstem
- reticulospinal
- tetcospinal
- ruborospinal
- vesticbulospinal
What is spinothalamic
Spinal cord- thalamus- cortex
Anterior- Pressure and tough
Lateral- Pain and temp
What is dorsal column-medial leminiscus pathway?
Lemon with good posture (proprioceptive)
T6 above- cunate nucleus
T6 below- gracile nucleus
Light touch/ vibration
What is spinocerebellum
Spine to cerebellum
Unconscious
Prorioceptive
What is corticospinal?
Below head Ends at spinal cord Desiccates -lateral pyramids of medulla -anterior spinal cord
What is corticobulbar?
Head and neck
Ends at brainstem
What is reticulospinal?
Reticular formation to spinal cord
Facilitates and inhibits voluntary movement
What is tectospinal?
Tectum (Superior colliculi) to spinal cord
Vision- head moves towards the light
What is ruborospinal?
Red nucleus to spinal cord
Caught red handed
fine control of hand
What is vestibulospinal?
Vestibular nuclei to spinal cord
Balance
What do the inferior and superior colliculi do?
Superior= Vision
Inferior- Auditory
Brocco’s area
actually speaking-frontal (motor)
Werneickes area
Understanding speech
Pre central gyrus
Motor
Post central gyrus
Somatosensory
Touch something, feel it later
What is the limbic system?
Inlcudes thalamus, hypothalamus, basal nuclei, cerebral cortex and olefactory cortex
Controls visceral functions through the autonomic NS and endocrine
Involved in- Emotions, memory, reproduction and nutrition
What are the 3 cerebral white matter fibres?
Association
commissure
projection
What are association fibres?
Same hemisphere, connect areas
Example= fornix
What are projection fibres?
Connect one cerebrum to other part of the brain/spinal cord
Example= Internal capsule
What are commissure fibres?
Connect one hemisphere to the other
Example- corpus collosum
What is the occipital part of the brain for?
Vision
