Quiz 3

Question 1

It is possible for people to move their limbs continuously without influence from their brains because

Answer 1

the spinal cord has a major role in controlling repetitive muscle actions

Question 2

A group of spinal neurons which work together to control rhythmic repetitive contraction and relaxation of a skeletal muscle is called

Answer 2

central pattern generator

Question 3

Spinal CPG neurons control repetitive limb movements via their direct actions upon

Answer 3

alpha motoneurons

Question 4

Locomotor CPGs in the spinal cord generate

Answer 4

alternating bursts of activity in agonist and antagonist muscles acting about a joint

Question 5

Adjustments in muscle force during slow rhythmic exercise such as walking

Answer 5

are influenced by supraspinal input and sensory input from muscles and moving limbs

Question 6

An example of sensory input from skeletal muscle to the spinal cord is

Answer 6

impulses from Golgi tendon organs

Question 7

The stretch reflex

Answer 7

involves a monosynaptic neural pathway

Question 8

Muscle spindles detect

Answer 8

changes in muscle length

Question 9

Golgi tendon organs detect

Answer 9

changes on muscle force

Question 10

Muscle strength will be greatest when

Answer 10

100 % of the motor unit pool is recruited