Bio Psych test 2 part 5
Home > Preview
The flashcards below were created by user
on FreezingBlue Flashcards.
What is a NMJ
Interference of a motor neuron terminals with muscle fibers
Ach causes sodium/calcium entry through nicotinic muscarinic receptors, and is at every single NMJ
What neurotransmitter and receptors mediate movement
The Basal Ganglia System
where are motor nerve somas
In the brainstem
What does the spinal cord mediate
controls skeletal muscles in response to sensory information (controls voluntary movement)
What is the pyramidal system?
axons from motor neurons in cortex, down brainstem/medulla pyramids, to spinal cord (corticospinal tract), to motor neurons in ventral horns
they all synapse at the ventral horns
most neurons send axon out ventral roots to muscles
What 3 areas of cortex mediate movement?
Precentral Gyrus (M1), premotor cortex, SMA
What 3 areas are considered the extrapyramidal system? (basal Ganglia)
interconnecting modulating movements
mediates direction of movement, initiation of movement, movements learned (contrast to movement due to sensation)
What 3 areas are considered the extrapyramidal system? (Cerebellum)
modulates movement, error detection
guides movement by inhibition (motor/non-motor learning)
What 3 areas are considered the extrapyramidal system? (Brainstem nuclei)
reticular formation, red nucleus
What is the Biology underlying some motor disease
ALS (Lou Gehrig's disease)
motot neuron loss (caudal to rostral progression)
What would you like to do?
Home > Flashcards > Print Preview