How Do We Cause Movement?

Question 1

1

Answer 1

We sense movement through eyes and touch
Information sent to brain via sensory neurons to process

Question 2

2

Answer 2

Brain sends messages down the motor neurones towards the required muscles to react

Question 3

3

Answer 3

Electrical signal hits the motor unit

Question 4

4

Answer 4

Intensity of electrical impulses builds up until there is enough energy to excite the unit

Question 5

5

Answer 5

Acetylcholine is released which allows the motor unit to join with the muscle fibre to become a neuromuscular junction

Question 6

6

Answer 6

Due to enough power, every muscle fibre touching that unit contracts

Question 7

7

Answer 7

Causes muscle to move
When enough electricity build up in motor neuron, AP is reached

Question 8

8

Answer 8

Causes calcium to allow release of acetylcholine enzyme A which allows electricity to move to muscle fibre

Question 9

9

Answer 9

Muscle then contracts as every muscle fibre attached will contract
All or none law