Physiology - Motor Control

What are the main two types of muscle tissue in the body?

• Striatum and supplementary

• Striated and smooth

• Striped and small

What is the name of the synapse between a motor neuron and muscle?

• Post synaptic potential

• Neuromuscular junction

• Motor endplate

What is the difference between an EPSP and IPSP?

• Exclusive and inclusive

• Extra- and intracellular

• Excitation and inhibition

• Equilibrium and interaction

What is the postsynaptic receptor of the neuromuscular junction?

• NMDA receptor

• Muscarinic acetylcholine receptor

• Nicotinic acetylcholine receptor

Which neuron changes firing rate first during the stretch reflex?

• Ia neuron

• Inhibitory interneuron

• Alpha motor neuron

What are the main descending motor pathways in the spinal cord?

• Corticospinal and cerebellospinal tract

• Lateral and ventromedial pathways

• Posterior and anterior pathways

 What is the main function of the tectospinal tract?

• Support fine motor tuning

• Support reflex responses to visual stimuli

• Support antigravity reflexes

What is a somatotopic map?

• The mapping of body motor function to different parts of M1

• The mapping of body motor function in the spinal cord

• The mapping of motor function across the whole brain

What is a function of the Premotor area?

• Execution of movement

• Inhibition of movement

• Preparation for movement

When does a mirror neuron (MN) fire?

• MNs fire during movement observed in a mirror

• MNs fire when observing movements in others

• MNs fire when no movements occur