Control of [blank_start]skeletal[blank_end] muscle can be a reflex movement, a precise [blank_start]voluntary[blank_end] movement, or an [blank_start]automatic[blank_end] movement. These all occur via a final [blank_start]common[blank_end] pathway, through a motor neuron. A motor neuron can never cause an [blank_start]inhibitory[blank_end] action.
Answer
skeletal
voluntary
automatic
common
inhibitory
Question 2
Question
Choose the correct statements about reflexes
Answer
A reflex movement is typically organised within the spinal cord.
Reflex movement pathways have an interneuron in the brain.
A reflex movement is a predictable, reproducible automatic response to a particular stimulus.
Stretch reflexes and withdrawal reflexes are common examples of reflexes.
Question 3
Question
The major difference in the relay of neurons between the stretch and withdrawal reflex is that in the withdrawal reflex, a neuron in the CNS travels from the spinal cord interneuron to the brain to provide conscious sensory information.
Answer
True
False
Question 4
Question
The sensory information delivered during a withdrawal reflex reaches the brain at the same time as the response is concluding.
Answer
True
False
Question 5
Question
Choose the incorrect statement about the corticospinal(pyramidal) tract.
Answer
It carries efferent information.
It crosses over in the medulla.
There is always an interneuron.
It controls precise movement, e.g. in the hands and feet
Question 6
Question
Choose the incorrect statement.
Answer
The basal ganglia permit action potentials to be propagated from the motor cortex.
The cerebellum can modify the motor program by comparing sensory feedback to expected feedback.
The cerebellum maintains posture.
The procedural memory is a development of memory of motor programs/automatic movements.
The basal ganglia assure the movement is coordinated guided by sensory feedback.
Question 7
Question
Choose the incorrect statement about the basal ganglia.
Answer
They act as a reward centre.
They are involved in addictive behaviours.
They release the hormone/neurotransmitter dopamine.
They only perform excitatory functions.
Question 8
Question
In Parkinson's Disease, the basal nuclei do not receive [blank_start]dopamine[blank_end] and so they cannot [blank_start]inhibit[blank_end] the inhibitory functions which allow a movement to be [blank_start]initiated[blank_end].