Intro to Nervous System Review

Front

What cells in the CNS are responsible for forming myelin?

Back

Oligodendrocytes

Front

What is the process called when a neurotransmitter is taken back into the presynaptic neuron?

Back

Reuptake

Front

What type of neurons carry impulses from the brain and spinal cord to muscles or glands?

Back

Motor neurons

Front

What does it mean when a neuron becomes more excitable due to stimulation?

Back

Facilitated

Front

What is the resting membrane potential of a neuron?

Back

-70 mV

Front

What is the role of microglial cells in the CNS?

Back

Microglial cells act as the immune defense in the CNS, removing waste and pathogens.

Front

What is the function of ependymal cells?

Back

Ependymal cells line the ventricles of the brain and produce cerebrospinal fluid (CSF).

Front

What is the difference between sensory neurons and motor neurons?

Back

Sensory neurons carry impulses to the CNS, while motor neurons carry impulses away from the CNS to effectors.

Front

What is depolarization in the context of neuron activity?

Back

Depolarization is the process by which a neuron's membrane potential becomes less negative, leading to an action potential.

Front

What is the significance of action potentials in neurons?

Back

Action potentials are electrical signals that propagate along the axon, allowing communication between neurons.