Motor Physiology: Master the Control of Movement with Interactive Quizzes

Question 1

Which Brodmann area of the primary motor cortex is predominantly involved in the planning and execution of voluntary movements?

Accepted Answer

Brodmann area 4

Answer

Brodmann area 6

Answer

Brodmann area 8

Answer

Brodmann area 10

Question 2

Which neurotransmitter is released at the neuromuscular junction, facilitating muscle contraction?

Accepted Answer

Acetylcholine

Answer

Dopamine

Answer

GABA

Answer

Serotonin

Question 3

Identify the reflex responsible for preserving muscle tone and preventing excessive muscle elongation.

Accepted Answer

Stretch reflex

Answer

Flexor reflex

Answer

Withdrawal reflex

Answer

Babinski reflex

Question 4

Which brain structure is primarily responsible for coordinating movement and preserving balance?

Accepted Answer

Cerebellum

Answer

Basal ganglia

Answer

Thalamus

Answer

Hypothalamus

Question 5

In terms of muscle physiology, what type of contraction occurs when muscle length increases under tension?

Accepted Answer

Eccentric contraction

Answer

Concentric contraction

Answer

Isometric contraction

Answer

Isokinetic contraction

Question 6

Which spinal cord tract is responsible for carrying motor commands from the brain to muscles?

Accepted Answer

Corticospinal tract

Answer

Spinothalamic tract

Answer

Ascending reticular activating system

Answer

Vestibulospinal tract

Question 7

What is the name given to the constant, involuntary muscle contractions that maintain posture and balance?

Accepted Answer

Tonic reflexes

Answer

Phasic reflexes

Answer

Proprioceptive reflexes

Answer

Vestibular reflexes

Question 8

Identify the neurodegenerative disorder characterized by progressive muscle rigidity and weakness.

Accepted Answer

Parkinson's disease

Answer

Alzheimer's disease

Answer

Multiple sclerosis

Answer

Huntington's disease

Question 9

What is the primary function of the Golgi tendon organ?

Accepted Answer

To detect muscle length and tension

Answer

To trigger muscle reflexes

Answer

To transmit motor signals to the spinal cord

Answer

To relay sensory information to the brain

Question 10

Which of the following structures is NOT a component of the extrapyramidal system?

Accepted Answer

Motor cortex

Answer

Basal ganglia

Answer

Cerebellum

Answer

Brainstem nuclei

Question 11

Which of the following is NOT a type of motor neuron?

Accepted Answer

Delta motor neuron

Answer

Alpha motor neuron

Answer

Beta motor neuron

Answer

Gamma motor neuron

Question 12

The primary motor cortex is responsible for which of the following?

Accepted Answer

Initiating voluntary movements

Answer

Maintaining muscle tone

Answer

Coordinating balance

Answer

Regulating reflexes

Question 13

Which of the following is a characteristic of a proprioceptor?

Accepted Answer

Responds to changes in muscle length

Answer

Located within the skin

Answer

Involved in pain perception

Answer

Transmits signals to the cerebellum

Question 14

The spinal cord is responsible for which of the following?

Accepted Answer

Reflexive responses

Answer

Voluntary movement

Answer

Conscious thought

Answer

Sensory perception

Question 15

Which of the following neurotransmitters is involved in muscle contraction?

Accepted Answer

Acetylcholine

Answer

Dopamine

Answer

Serotonin

Answer

GABA

Question 16

The Golgi tendon organ is responsible for which of the following functions?

Accepted Answer

Detecting muscle tension

Answer

Initiating muscle contraction

Answer

Regulating muscle length

Answer

Providing sensory feedback to the brain

Question 17

Which of these neurotransmitters is primarily responsible for excitatory synaptic transmission within the central nervous system?

Accepted Answer

Glutamate

Answer

Glycine

Answer

GABA

Answer

Dopamine

Question 18

What is the primary role of the cerebellum within our nervous system?

Accepted Answer

Maintenance of balance and coordination

Answer

Initiation of voluntary movement

Answer

Processing of sensory information

Answer

Control of cardiovascular function

Question 19

Which of the following is involved in fine-tuning muscle tone?

Accepted Answer

Gamma motor neurons

Answer

Alpha motor neurons

Answer

Interneurons

Answer

Sensory receptors

Question 20

What is the underlying mechanism responsible for generating action potentials?

Accepted Answer

Depolarisation of the cell membrane

Answer

Hyperpolarisation of the cell membrane

Answer

Influx of potassium ions

Answer

Efflux of sodium ions

Question 21

Which category of sensory receptor responds explicitly to touch?

Accepted Answer

Mechanoreceptor

Answer

Thermoreceptor

Answer

Photoreceptor

Answer

Chemoreceptor

Question 22

What is the primary responsibility of the vestibular system?

Accepted Answer

Maintenance of balance and equilibrium

Answer

Control of eye movements

Answer

Regulation of body temperature

Answer

Detection and processing of pain

Question 23

Which of the following options is NOT a function of the spinal cord?

Accepted Answer

Initiation of voluntary movement

Answer

Reflex arc generation

Answer

Transmission of sensory information

Answer

Regulation of breathing