6.1 lower motorneuron

Question 1

the feedback mechanism that maintains limb and body position is the ______

Answer 1

monosynaptic reflex arc

Question 2

muscle spindles detect change in muscle _______

Answer 2

length

Question 3

what does the motor system consist of?

Answer 3

the muscles in the body and all neural structures involved in their activity

Question 4

what kind of neurons activate skeletal muscle and where do they reside

Answer 4

cholinergic motoneurons, ventral spinal cord and the brainstem

Question 5

what is a motoneuron pool?

Answer 5

the collection of motoneurons that innervate a particular muscle

Question 6

alternating movements come from what?

Answer 6

pattern generating circuits in the spinal cord

Question 7

golgi tendon organs detect ___ and _____ motoneurons___

Answer 7

force and inhibit motoneurons

Question 8

what type of muscle do we use to move the body in space?

Answer 8

skeletal

Question 9

how does pattern generation work?

Answer 9

intrinsically active neurons fire bursts of APs, alternate output to flexors and extensors and to L and R limbs

Question 10

what is a motor unit?

Answer 10

one muscle nerve and all the fibres it innervates