review class

Question 1

secondary somatosensory cortex

Answer 1

confirmed which movement have already taken place and decide which movements should follow

Question 2

pre-frontal cortex

Answer 2

decisions making center when doing complex movements

Question 3

the function of the direct pathway

Answer 3

to facilitate movement (increase movement)

Question 4

what does the Nigra in the direct pathways

Answer 4

after the nigra is excited by glutamate the nigra send gaba back to the subthalamic nuclei to stop exciting the nigra (it has had enough so now it wants to stop)

Question 5

how to pick up cup

Answer 5

1. primary visual cortex
   2.2 stream hypothesis (dorsal and ventral)
2. prefrontal cortex (decision movement)
3. premotor (before the movement)
4. primary motor
5. alpha motor neurons (got there by the corticospinal tract)

subcortical- BG-cerebellum

Question 6

mirror neurons

Answer 6

activate when your sensory neurons “sense something” that someone else is doing

Question 7

motor set neurons

Answer 7

“hey we are about to do a movement”
- fire just prior to doing action

Question 8

finger extension experiment

Answer 8

1. all mechanoreceptors contribute to proprioception(some understanding for where your joints are in space)
2. as joint position increased better correct identification was received
3. muscle-tendon unit does not play as much of a role when the finger is flexed (unloaded)