Lec 19

Question 1

Tonic descending input

Answer 1

continuous steady flow of signals from higher brain centres (such as cortex, brainstem) down to spinal cord. critical role in reflexes

Question 2

How does the use of a Locomat effect people who had strokes and trouble moving.

Answer 2

helps them practice and train. Can increase resistance for bone density and cardio health benefits.

Question 3

Where does the signal to lift leg over object during planned (volitional) movement come from?

Answer 3

Motor cortex

Question 4

Do humans have central pattern generator? where

Answer 4

yes - in spin cord

Question 5

what do higher brain centres do for movement vs what CPG (central patt generator) do?

Answer 5

Higher centres
- initiate movement
- balance and stability
- obstacle avoidance
- navigation
- task selection

CPG
- adaptation to immediate enviro (e.g. walk response